diff --git a/lib/selectors/chat-selectors.js b/lib/selectors/chat-selectors.js
index 201a15bfc..a9cd2d0bb 100644
--- a/lib/selectors/chat-selectors.js
+++ b/lib/selectors/chat-selectors.js
@@ -1,717 +1,717 @@
 // @flow
 
 import invariant from 'invariant';
 import _filter from 'lodash/fp/filter.js';
 import _flow from 'lodash/fp/flow.js';
 import _map from 'lodash/fp/map.js';
 import _orderBy from 'lodash/fp/orderBy.js';
 import * as React from 'react';
 import { useSelector } from 'react-redux';
 import { createSelector } from 'reselect';
 import { createObjectSelector } from 'reselect-map';
 
 import {
   threadInfoSelector,
   sidebarInfoSelector,
   threadInfoFromSourceMessageIDSelector,
 } from './thread-selectors.js';
 import {
   messageKey,
   robotextForMessageInfo,
   createMessageInfo,
   getMostRecentNonLocalMessageID,
   sortMessageInfoList,
 } from '../shared/message-utils.js';
 import {
   threadIsPending,
   threadIsTopLevel,
   threadInChatList,
 } from '../shared/thread-utils.js';
 import { messageTypes } from '../types/message-types-enum.js';
 import {
   type MessageInfo,
   type MessageStore,
   type ComposableMessageInfo,
   type RobotextMessageInfo,
   type LocalMessageInfo,
   isComposableMessageType,
 } from '../types/message-types.js';
 import type {
   MinimallyEncodedRawThreadInfo,
   MinimallyEncodedThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import type { BaseAppState } from '../types/redux-types.js';
 import { threadTypes } from '../types/thread-types-enum.js';
 import {
   type ThreadInfo,
   type RawThreadInfo,
   type SidebarInfo,
   maxReadSidebars,
   maxUnreadSidebars,
 } from '../types/thread-types.js';
 import type {
   UserInfo,
   AccountUserInfo,
   RelativeUserInfo,
 } from '../types/user-types.js';
 import { threeDays } from '../utils/date-utils.js';
 import type { EntityText } from '../utils/entity-text.js';
 import memoize2 from '../utils/memoize.js';
 
 export type SidebarItem =
   | {
       ...SidebarInfo,
       +type: 'sidebar',
     }
   | {
       +type: 'seeMore',
       +unread: boolean,
     }
   | { +type: 'spacer' };
 
 export type ChatThreadItem = {
   +type: 'chatThreadItem',
   +threadInfo: ThreadInfo,
   +mostRecentMessageInfo: ?MessageInfo,
   +mostRecentNonLocalMessage: ?string,
   +lastUpdatedTime: number,
   +lastUpdatedTimeIncludingSidebars: number,
   +sidebars: $ReadOnlyArray<SidebarItem>,
   +pendingPersonalThreadUserInfo?: UserInfo,
 };
 
 const messageInfoSelector: (state: BaseAppState<>) => {
   +[id: string]: ?MessageInfo,
 } = createObjectSelector(
   (state: BaseAppState<>) => state.messageStore.messages,
   (state: BaseAppState<>) => state.currentUserInfo && state.currentUserInfo.id,
   (state: BaseAppState<>) => state.userStore.userInfos,
   threadInfoSelector,
   createMessageInfo,
 );
 
 function isEmptyMediaMessage(messageInfo: MessageInfo): boolean {
   return (
     (messageInfo.type === messageTypes.MULTIMEDIA ||
       messageInfo.type === messageTypes.IMAGES) &&
     messageInfo.media.length === 0
   );
 }
 
 function getMostRecentMessageInfo(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   messageStore: MessageStore,
   messages: { +[id: string]: ?MessageInfo },
 ): ?MessageInfo {
   const thread = messageStore.threads[threadInfo.id];
   if (!thread) {
     return null;
   }
   for (const messageID of thread.messageIDs) {
     const messageInfo = messages[messageID];
     if (!messageInfo || isEmptyMediaMessage(messageInfo)) {
       continue;
     }
     return messageInfo;
   }
   return null;
 }
 
 function getLastUpdatedTime(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   mostRecentMessageInfo: ?MessageInfo,
 ): number {
   return mostRecentMessageInfo
     ? mostRecentMessageInfo.time
     : threadInfo.creationTime;
 }
 
 function createChatThreadItem(
   threadInfo: ThreadInfo,
   messageStore: MessageStore,
   messages: { +[id: string]: ?MessageInfo },
   sidebarInfos: ?$ReadOnlyArray<SidebarInfo>,
 ): ChatThreadItem {
   const mostRecentMessageInfo = getMostRecentMessageInfo(
     threadInfo,
     messageStore,
     messages,
   );
   const mostRecentNonLocalMessage = getMostRecentNonLocalMessageID(
     threadInfo.id,
     messageStore,
   );
   const lastUpdatedTime = getLastUpdatedTime(threadInfo, mostRecentMessageInfo);
 
   const sidebars = sidebarInfos ?? [];
   const allSidebarItems = sidebars.map(sidebarInfo => ({
     type: 'sidebar',
     ...sidebarInfo,
   }));
   const lastUpdatedTimeIncludingSidebars =
     allSidebarItems.length > 0
       ? Math.max(lastUpdatedTime, allSidebarItems[0].lastUpdatedTime)
       : lastUpdatedTime;
 
   const numUnreadSidebars = allSidebarItems.filter(
     sidebar => sidebar.threadInfo.currentUser.unread,
   ).length;
   let numReadSidebarsToShow = maxReadSidebars - numUnreadSidebars;
   const threeDaysAgo = Date.now() - threeDays;
 
   const sidebarItems = [];
   for (const sidebar of allSidebarItems) {
     if (sidebarItems.length >= maxUnreadSidebars) {
       break;
     } else if (sidebar.threadInfo.currentUser.unread) {
       sidebarItems.push(sidebar);
     } else if (
       sidebar.lastUpdatedTime > threeDaysAgo &&
       numReadSidebarsToShow > 0
     ) {
       sidebarItems.push(sidebar);
       numReadSidebarsToShow--;
     }
   }
 
   const numReadButRecentSidebars = allSidebarItems.filter(
     sidebar =>
       !sidebar.threadInfo.currentUser.unread &&
       sidebar.lastUpdatedTime > threeDaysAgo,
   ).length;
   if (
     sidebarItems.length < numUnreadSidebars + numReadButRecentSidebars ||
     (sidebarItems.length < allSidebarItems.length && sidebarItems.length > 0)
   ) {
     sidebarItems.push({
       type: 'seeMore',
       unread: numUnreadSidebars > maxUnreadSidebars,
     });
   }
   if (sidebarItems.length !== 0) {
     sidebarItems.push({
       type: 'spacer',
     });
   }
 
   return {
     type: 'chatThreadItem',
     threadInfo,
     mostRecentMessageInfo,
     mostRecentNonLocalMessage,
     lastUpdatedTime,
     lastUpdatedTimeIncludingSidebars,
     sidebars: sidebarItems,
   };
 }
 
 const chatListData: (state: BaseAppState<>) => $ReadOnlyArray<ChatThreadItem> =
   createSelector(
     threadInfoSelector,
     (state: BaseAppState<>) => state.messageStore,
     messageInfoSelector,
     sidebarInfoSelector,
     (
       threadInfos: { +[id: string]: ThreadInfo },
       messageStore: MessageStore,
       messageInfos: { +[id: string]: ?MessageInfo },
       sidebarInfos: { +[id: string]: $ReadOnlyArray<SidebarInfo> },
     ): $ReadOnlyArray<ChatThreadItem> =>
       getChatThreadItems(
         threadInfos,
         messageStore,
         messageInfos,
         sidebarInfos,
         threadIsTopLevel,
       ),
   );
 
 function useFlattenedChatListData(): $ReadOnlyArray<ChatThreadItem> {
   return useFilteredChatListData(threadInChatList);
 }
 
 function useFilteredChatListData(
   filterFunction: (
     threadInfo: ?(
       | ThreadInfo
       | RawThreadInfo
       | MinimallyEncodedThreadInfo
       | MinimallyEncodedRawThreadInfo
     ),
   ) => boolean,
 ): $ReadOnlyArray<ChatThreadItem> {
   const threadInfos = useSelector(threadInfoSelector);
   const messageInfos = useSelector(messageInfoSelector);
   const sidebarInfos = useSelector(sidebarInfoSelector);
   const messageStore = useSelector(state => state.messageStore);
 
   return React.useMemo(
     () =>
       getChatThreadItems(
         threadInfos,
         messageStore,
         messageInfos,
         sidebarInfos,
         filterFunction,
       ),
     [messageInfos, messageStore, sidebarInfos, filterFunction, threadInfos],
   );
 }
 
 function getChatThreadItems(
   threadInfos: { +[id: string]: ThreadInfo },
   messageStore: MessageStore,
   messageInfos: { +[id: string]: ?MessageInfo },
   sidebarInfos: { +[id: string]: $ReadOnlyArray<SidebarInfo> },
   filterFunction: (
     threadInfo: ?(
       | ThreadInfo
       | RawThreadInfo
       | MinimallyEncodedThreadInfo
       | MinimallyEncodedRawThreadInfo
     ),
   ) => boolean,
 ): $ReadOnlyArray<ChatThreadItem> {
   return _flow(
     _filter(filterFunction),
     _map((threadInfo: ThreadInfo): ChatThreadItem =>
       createChatThreadItem(
         threadInfo,
         messageStore,
         messageInfos,
         sidebarInfos[threadInfo.id],
       ),
     ),
     _orderBy('lastUpdatedTimeIncludingSidebars')('desc'),
   )(threadInfos);
 }
 
 export type RobotextChatMessageInfoItem = {
   +itemType: 'message',
   +messageInfoType: 'robotext',
   +messageInfo: RobotextMessageInfo,
   +startsConversation: boolean,
   +startsCluster: boolean,
   endsCluster: boolean,
   +robotext: EntityText,
-  +threadCreatedFromMessage: ?ThreadInfo,
+  +threadCreatedFromMessage: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +reactions: ReactionInfo,
 };
 export type ChatMessageInfoItem =
   | RobotextChatMessageInfoItem
   | {
       +itemType: 'message',
       +messageInfoType: 'composable',
       +messageInfo: ComposableMessageInfo,
       +localMessageInfo: ?LocalMessageInfo,
       +startsConversation: boolean,
       +startsCluster: boolean,
       endsCluster: boolean,
-      +threadCreatedFromMessage: ?ThreadInfo,
+      +threadCreatedFromMessage: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
       +reactions: ReactionInfo,
       +hasBeenEdited: boolean,
       +isPinned: boolean,
     };
 export type ChatMessageItem = { itemType: 'loader' } | ChatMessageInfoItem;
 
 export type ReactionInfo = { +[reaction: string]: MessageReactionInfo };
 type MessageReactionInfo = {
   +viewerReacted: boolean,
   +users: $ReadOnlyArray<RelativeUserInfo>,
 };
 type TargetMessageReactions = Map<string, Map<string, RelativeUserInfo>>;
 
 const msInFiveMinutes = 5 * 60 * 1000;
 function createChatMessageItems(
   threadID: string,
   messageStore: MessageStore,
   messageInfos: { +[id: string]: ?MessageInfo },
   threadInfos: { +[id: string]: ThreadInfo },
   threadInfoFromSourceMessageID: { +[id: string]: ThreadInfo },
   additionalMessages: $ReadOnlyArray<MessageInfo>,
   viewerID: string,
 ): ChatMessageItem[] {
   const thread = messageStore.threads[threadID];
 
   const threadMessageInfos = (thread?.messageIDs ?? [])
     .map((messageID: string) => messageInfos[messageID])
     .filter(Boolean);
   const messages =
     additionalMessages.length > 0
       ? sortMessageInfoList([...threadMessageInfos, ...additionalMessages])
       : threadMessageInfos;
 
   const targetMessageReactionsMap = new Map<string, TargetMessageReactions>();
 
   // We need to iterate backwards to put the order of messages in chronological
   // order, starting with the oldest. This avoids the scenario where the most
   // recent message with the remove_reaction action may try to remove a user
   // that hasn't been added to the messageReactionUsersInfoMap, causing it
   // to be skipped.
   for (let i = messages.length - 1; i >= 0; i--) {
     const messageInfo = messages[i];
     if (messageInfo.type !== messageTypes.REACTION) {
       continue;
     }
 
     if (!targetMessageReactionsMap.has(messageInfo.targetMessageID)) {
       const reactsMap: TargetMessageReactions = new Map();
       targetMessageReactionsMap.set(messageInfo.targetMessageID, reactsMap);
     }
 
     const messageReactsMap = targetMessageReactionsMap.get(
       messageInfo.targetMessageID,
     );
     invariant(messageReactsMap, 'messageReactsInfo should be set');
 
     if (!messageReactsMap.has(messageInfo.reaction)) {
       const usersInfoMap = new Map<string, RelativeUserInfo>();
       messageReactsMap.set(messageInfo.reaction, usersInfoMap);
     }
 
     const messageReactionUsersInfoMap = messageReactsMap.get(
       messageInfo.reaction,
     );
     invariant(
       messageReactionUsersInfoMap,
       'messageReactionUsersInfoMap should be set',
     );
 
     if (messageInfo.action === 'add_reaction') {
       messageReactionUsersInfoMap.set(
         messageInfo.creator.id,
         messageInfo.creator,
       );
     } else {
       messageReactionUsersInfoMap.delete(messageInfo.creator.id);
     }
   }
 
   const targetMessageEditMap = new Map<string, string>();
   for (let i = messages.length - 1; i >= 0; i--) {
     const messageInfo = messages[i];
     if (messageInfo.type !== messageTypes.EDIT_MESSAGE) {
       continue;
     }
     targetMessageEditMap.set(messageInfo.targetMessageID, messageInfo.text);
   }
 
   const targetMessagePinStatusMap = new Map<string, boolean>();
   // Once again, we iterate backwards to put the order of messages in
   // chronological order (i.e. oldest to newest) to handle pinned messages.
   // This is important because we want to make sure that the most recent pin
   // action is the one that is used to determine whether a message
   // is pinned or not.
   for (let i = messages.length - 1; i >= 0; i--) {
     const messageInfo = messages[i];
     if (messageInfo.type !== messageTypes.TOGGLE_PIN) {
       continue;
     }
 
     targetMessagePinStatusMap.set(
       messageInfo.targetMessageID,
       messageInfo.action === 'pin',
     );
   }
 
   const chatMessageItems = [];
   let lastMessageInfo = null;
   for (let i = messages.length - 1; i >= 0; i--) {
     const messageInfo = messages[i];
 
     if (
       messageInfo.type === messageTypes.REACTION ||
       messageInfo.type === messageTypes.EDIT_MESSAGE
     ) {
       continue;
     }
 
     let originalMessageInfo =
       messageInfo.type === messageTypes.SIDEBAR_SOURCE
         ? messageInfo.sourceMessage
         : messageInfo;
 
     if (isEmptyMediaMessage(originalMessageInfo)) {
       continue;
     }
 
     let hasBeenEdited = false;
     if (
       originalMessageInfo.type === messageTypes.TEXT &&
       originalMessageInfo.id
     ) {
       const newText = targetMessageEditMap.get(originalMessageInfo.id);
       if (newText !== undefined) {
         hasBeenEdited = true;
         originalMessageInfo = {
           ...originalMessageInfo,
           text: newText,
         };
       }
     }
 
     let startsConversation = true;
     let startsCluster = true;
     if (
       lastMessageInfo &&
       lastMessageInfo.time + msInFiveMinutes > originalMessageInfo.time
     ) {
       startsConversation = false;
       if (
         isComposableMessageType(lastMessageInfo.type) &&
         isComposableMessageType(originalMessageInfo.type) &&
         lastMessageInfo.creator.id === originalMessageInfo.creator.id
       ) {
         startsCluster = false;
       }
     }
     if (startsCluster && chatMessageItems.length > 0) {
       const lastMessageItem = chatMessageItems[chatMessageItems.length - 1];
       invariant(lastMessageItem.itemType === 'message', 'should be message');
       lastMessageItem.endsCluster = true;
     }
     const threadCreatedFromMessage =
       messageInfo.id && threadInfos[threadID]?.type !== threadTypes.SIDEBAR
         ? threadInfoFromSourceMessageID[messageInfo.id]
         : undefined;
 
     const isPinned = !!(
       originalMessageInfo.id &&
       targetMessagePinStatusMap.get(originalMessageInfo.id)
     );
 
     const renderedReactions: ReactionInfo = (() => {
       const result = {};
 
       let messageReactsMap;
       if (originalMessageInfo.id) {
         messageReactsMap = targetMessageReactionsMap.get(
           originalMessageInfo.id,
         );
       }
 
       if (!messageReactsMap) {
         return result;
       }
 
       for (const reaction of messageReactsMap.keys()) {
         const reactionUsersInfoMap = messageReactsMap.get(reaction);
         invariant(reactionUsersInfoMap, 'reactionUsersInfoMap should be set');
 
         if (reactionUsersInfoMap.size === 0) {
           continue;
         }
 
         const reactionUserInfos = [...reactionUsersInfoMap.values()];
 
         const messageReactionInfo = {
           users: reactionUserInfos,
           viewerReacted: reactionUsersInfoMap.has(viewerID),
         };
 
         result[reaction] = messageReactionInfo;
       }
 
       return result;
     })();
 
     if (isComposableMessageType(originalMessageInfo.type)) {
       // We use these invariants instead of just checking the messageInfo.type
       // directly in the conditional above so that isComposableMessageType can
       // be the source of truth
       invariant(
         originalMessageInfo.type === messageTypes.TEXT ||
           originalMessageInfo.type === messageTypes.IMAGES ||
           originalMessageInfo.type === messageTypes.MULTIMEDIA,
         "Flow doesn't understand isComposableMessageType above",
       );
       const localMessageInfo =
         messageStore.local[messageKey(originalMessageInfo)];
       chatMessageItems.push({
         itemType: 'message',
         messageInfoType: 'composable',
         messageInfo: originalMessageInfo,
         localMessageInfo,
         startsConversation,
         startsCluster,
         endsCluster: false,
         threadCreatedFromMessage,
         reactions: renderedReactions,
         hasBeenEdited,
         isPinned,
       });
     } else {
       invariant(
         originalMessageInfo.type !== messageTypes.TEXT &&
           originalMessageInfo.type !== messageTypes.IMAGES &&
           originalMessageInfo.type !== messageTypes.MULTIMEDIA,
         "Flow doesn't understand isComposableMessageType above",
       );
       const threadInfo = threadInfos[threadID];
       const parentThreadInfo = threadInfo?.parentThreadID
         ? threadInfos[threadInfo.parentThreadID]
         : null;
 
       const robotext = robotextForMessageInfo(
         originalMessageInfo,
         threadInfo,
         parentThreadInfo,
       );
       chatMessageItems.push({
         itemType: 'message',
         messageInfoType: 'robotext',
         messageInfo: originalMessageInfo,
         startsConversation,
         startsCluster,
         endsCluster: false,
         threadCreatedFromMessage,
         robotext,
         reactions: renderedReactions,
       });
     }
     lastMessageInfo = originalMessageInfo;
   }
   if (chatMessageItems.length > 0) {
     const lastMessageItem = chatMessageItems[chatMessageItems.length - 1];
     invariant(lastMessageItem.itemType === 'message', 'should be message');
     lastMessageItem.endsCluster = true;
   }
   chatMessageItems.reverse();
   const hideSpinner = thread ? thread.startReached : threadIsPending(threadID);
   if (hideSpinner) {
     return chatMessageItems;
   }
   return [...chatMessageItems, ({ itemType: 'loader' }: ChatMessageItem)];
 }
 
 const baseMessageListData = (
   threadID: ?string,
   additionalMessages: $ReadOnlyArray<MessageInfo>,
 ) =>
   createSelector(
     (state: BaseAppState<>) => state.messageStore,
     messageInfoSelector,
     threadInfoSelector,
     threadInfoFromSourceMessageIDSelector,
     (state: BaseAppState<>) =>
       state.currentUserInfo && state.currentUserInfo.id,
     (
       messageStore: MessageStore,
       messageInfos: { +[id: string]: ?MessageInfo },
       threadInfos: { +[id: string]: ThreadInfo },
       threadInfoFromSourceMessageID: { +[id: string]: ThreadInfo },
       viewerID: ?string,
     ): ?(ChatMessageItem[]) => {
       if (!threadID || !viewerID) {
         return null;
       }
       return createChatMessageItems(
         threadID,
         messageStore,
         messageInfos,
         threadInfos,
         threadInfoFromSourceMessageID,
         additionalMessages,
         viewerID,
       );
     },
   );
 export type MessageListData = ?(ChatMessageItem[]);
 const messageListData: (
   threadID: ?string,
   additionalMessages: $ReadOnlyArray<MessageInfo>,
 ) => (state: BaseAppState<>) => MessageListData = memoize2(baseMessageListData);
 
 export type UseMessageListDataArgs = {
   +searching: boolean,
   +userInfoInputArray: $ReadOnlyArray<AccountUserInfo>,
   +threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 };
 
 function useMessageListData({
   searching,
   userInfoInputArray,
   threadInfo,
 }: UseMessageListDataArgs): MessageListData {
   const messageInfos = useSelector(messageInfoSelector);
 
   const containingThread = useSelector(state => {
     if (!threadInfo || threadInfo.type !== threadTypes.SIDEBAR) {
       return null;
     }
     return state.messageStore.threads[threadInfo.containingThreadID];
   });
 
   const pendingSidebarEditMessageInfo = React.useMemo(() => {
     const sourceMessageID = threadInfo?.sourceMessageID;
     const threadMessageInfos = (containingThread?.messageIDs ?? [])
       .map((messageID: string) => messageInfos[messageID])
       .filter(Boolean)
       .filter(
         message =>
           message.type === messageTypes.EDIT_MESSAGE &&
           message.targetMessageID === sourceMessageID,
       );
     if (threadMessageInfos.length === 0) {
       return null;
     }
     return threadMessageInfos[0];
   }, [threadInfo, containingThread, messageInfos]);
 
   const pendingSidebarSourceMessageInfo = useSelector(state => {
     const sourceMessageID = threadInfo?.sourceMessageID;
     if (
       !threadInfo ||
       threadInfo.type !== threadTypes.SIDEBAR ||
       !sourceMessageID
     ) {
       return null;
     }
     const thread = state.messageStore.threads[threadInfo.id];
     const shouldSourceBeAdded =
       !thread ||
       (thread.startReached &&
         thread.messageIDs.every(
           id => messageInfos[id]?.type !== messageTypes.SIDEBAR_SOURCE,
         ));
     return shouldSourceBeAdded ? messageInfos[sourceMessageID] : null;
   });
 
   invariant(
     !pendingSidebarSourceMessageInfo ||
       pendingSidebarSourceMessageInfo.type !== messageTypes.SIDEBAR_SOURCE,
     'sidebars can not be created from sidebar_source message',
   );
 
   const additionalMessages = React.useMemo(() => {
     if (!pendingSidebarSourceMessageInfo) {
       return [];
     }
     const result = [pendingSidebarSourceMessageInfo];
     if (pendingSidebarEditMessageInfo) {
       result.push(pendingSidebarEditMessageInfo);
     }
     return result;
   }, [pendingSidebarSourceMessageInfo, pendingSidebarEditMessageInfo]);
   const boundMessageListData = useSelector(
     messageListData(threadInfo?.id, additionalMessages),
   );
 
   return React.useMemo(() => {
     if (searching && userInfoInputArray.length === 0) {
       return [];
     }
     return boundMessageListData;
   }, [searching, userInfoInputArray.length, boundMessageListData]);
 }
 
 export {
   messageInfoSelector,
   createChatThreadItem,
   chatListData,
   createChatMessageItems,
   messageListData,
   useFlattenedChatListData,
   useFilteredChatListData,
   useMessageListData,
 };
diff --git a/lib/shared/mention-utils.js b/lib/shared/mention-utils.js
index a56691a91..b9645ecfa 100644
--- a/lib/shared/mention-utils.js
+++ b/lib/shared/mention-utils.js
@@ -1,193 +1,199 @@
 // @flow
 
 import { oldValidUsernameRegexString } from './account-utils.js';
 import SentencePrefixSearchIndex from './sentence-prefix-search-index.js';
 import { threadOtherMembers } from './thread-utils.js';
 import { stringForUserExplicit } from './user-utils.js';
-import type { MinimallyEncodedResolvedThreadInfo } from '../types/minimally-encoded-thread-permissions-types.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedResolvedThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from '../types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from '../types/thread-types-enum.js';
 import type {
   ThreadInfo,
   RelativeMemberInfo,
   ResolvedThreadInfo,
   ChatMentionCandidates,
 } from '../types/thread-types.js';
 import { idSchemaRegex, chatNameMaxLength } from '../utils/validation-utils.js';
 
 export type TypeaheadMatchedStrings = {
   +textBeforeAtSymbol: string,
   +query: string,
 };
 
 export type Selection = {
   +start: number,
   +end: number,
 };
 
 type MentionTypeaheadUserSuggestionItem = {
   +type: 'user',
-  +userInfo: RelativeMemberInfo,
+  +userInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
 };
 
 type MentionTypeaheadChatSuggestionItem = {
   +type: 'chat',
   +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
 };
 
 export type MentionTypeaheadSuggestionItem =
   | MentionTypeaheadUserSuggestionItem
   | MentionTypeaheadChatSuggestionItem;
 
 export type TypeaheadTooltipActionItem<SuggestionItemType> = {
   +key: string,
   +execute: () => mixed,
   +actionButtonContent: SuggestionItemType,
 };
 
 // The simple-markdown package already breaks words out for us, and we are
 // supposed to only match when the first word of the input matches
 const markdownUserMentionRegex: RegExp = new RegExp(
   `^(@(${oldValidUsernameRegexString}))\\b`,
 );
 
 function isUserMentioned(username: string, text: string): boolean {
   return new RegExp(`\\B@${username}\\b`, 'i').test(text);
 }
 
 const userMentionsExtractionRegex = new RegExp(
   `\\B(@(${oldValidUsernameRegexString}))\\b`,
   'g',
 );
 
 const chatMentionRegexString = `([^\\\\]|^)(@\\[\\[(${idSchemaRegex}):((.{0,${chatNameMaxLength}}?)(?!\\\\).|^)\\]\\])`;
 const chatMentionRegex: RegExp = new RegExp(`^${chatMentionRegexString}`);
 const globalChatMentionRegex: RegExp = new RegExp(chatMentionRegexString, 'g');
 
 function encodeChatMentionText(text: string): string {
   return text.replace(/]/g, '\\]');
 }
 
 function decodeChatMentionText(text: string): string {
   return text.replace(/\\]/g, ']');
 }
 
 function getRawChatMention(
   threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
 ): string {
   return `@[[${threadInfo.id}:${encodeChatMentionText(threadInfo.uiName)}]]`;
 }
 
 function renderChatMentionsWithAltText(text: string): string {
   return text.replace(
     globalChatMentionRegex,
     (...match) => `${match[1]}@${decodeChatMentionText(match[4])}`,
   );
 }
 
 function extractUserMentionsFromText(text: string): string[] {
   const iterator = text.matchAll(userMentionsExtractionRegex);
   return [...iterator].map(matches => matches[2]);
 }
 
 function getTypeaheadRegexMatches(
   text: string,
   selection: Selection,
   regex: RegExp,
 ): null | RegExp$matchResult {
   if (
     selection.start === selection.end &&
     (selection.start === text.length || /\s/.test(text[selection.end]))
   ) {
     return text.slice(0, selection.start).match(regex);
   }
   return null;
 }
 
 function getMentionTypeaheadUserSuggestions(
   userSearchIndex: SentencePrefixSearchIndex,
-  threadMembers: $ReadOnlyArray<RelativeMemberInfo>,
+  threadMembers: $ReadOnlyArray<
+    RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  >,
   viewerID: ?string,
   usernamePrefix: string,
 ): $ReadOnlyArray<MentionTypeaheadUserSuggestionItem> {
   const userIDs = userSearchIndex.getSearchResults(usernamePrefix);
   const usersInThread = threadOtherMembers(threadMembers, viewerID);
 
   return usersInThread
     .filter(user => usernamePrefix.length === 0 || userIDs.includes(user.id))
     .sort((userA, userB) =>
       stringForUserExplicit(userA).localeCompare(stringForUserExplicit(userB)),
     )
     .map(userInfo => ({ type: 'user', userInfo }));
 }
 
 function getMentionTypeaheadChatSuggestions(
   chatSearchIndex: SentencePrefixSearchIndex,
   chatMentionCandidates: ChatMentionCandidates,
   chatNamePrefix: string,
 ): $ReadOnlyArray<MentionTypeaheadChatSuggestionItem> {
   const result = [];
   const threadIDs = chatSearchIndex.getSearchResults(chatNamePrefix);
   for (const threadID of threadIDs) {
     if (!chatMentionCandidates[threadID]) {
       continue;
     }
     result.push({
       type: 'chat',
       threadInfo: chatMentionCandidates[threadID],
     });
   }
   return result;
 }
 
 function getNewTextAndSelection(
   textBeforeAtSymbol: string,
   entireText: string,
   query: string,
   suggestionText: string,
 ): {
   newText: string,
   newSelectionStart: number,
 } {
   const totalMatchLength = textBeforeAtSymbol.length + query.length + 1; // 1 for @ char
 
   let newSuffixText = entireText.slice(totalMatchLength);
   newSuffixText = (newSuffixText[0] !== ' ' ? ' ' : '') + newSuffixText;
 
   const newText = textBeforeAtSymbol + suggestionText + newSuffixText;
 
   const newSelectionStart = newText.length - newSuffixText.length + 1;
 
   return { newText, newSelectionStart };
 }
 
 function getUserMentionsCandidates(
-  threadInfo: ThreadInfo,
-  parentThreadInfo: ?ThreadInfo,
-): $ReadOnlyArray<RelativeMemberInfo> {
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
+): $ReadOnlyArray<RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo> {
   if (threadInfo.type !== threadTypes.SIDEBAR) {
     return threadInfo.members;
   }
   if (parentThreadInfo) {
     return parentThreadInfo.members;
   }
   // This scenario should not occur unless the user logs out while looking at a
   // sidebar. In that scenario, the Redux store may be cleared before ReactNav
   // finishes transitioning away from the previous screen
   return [];
 }
 
 export {
   markdownUserMentionRegex,
   isUserMentioned,
   extractUserMentionsFromText,
   getMentionTypeaheadUserSuggestions,
   getMentionTypeaheadChatSuggestions,
   getNewTextAndSelection,
   getTypeaheadRegexMatches,
   getUserMentionsCandidates,
   chatMentionRegex,
   encodeChatMentionText,
   decodeChatMentionText,
   getRawChatMention,
   renderChatMentionsWithAltText,
 };
diff --git a/lib/shared/message-utils.js b/lib/shared/message-utils.js
index 9e6a1110d..ab16dc22c 100644
--- a/lib/shared/message-utils.js
+++ b/lib/shared/message-utils.js
@@ -1,735 +1,735 @@
 // @flow
 
 import invariant from 'invariant';
 import _maxBy from 'lodash/fp/maxBy.js';
 import _orderBy from 'lodash/fp/orderBy.js';
 import * as React from 'react';
 
 import { codeBlockRegex, type ParserRules } from './markdown.js';
 import type { CreationSideEffectsFunc } from './messages/message-spec.js';
 import { messageSpecs } from './messages/message-specs.js';
 import { threadIsGroupChat } from './thread-utils.js';
 import { useStringForUser } from '../hooks/ens-cache.js';
 import { contentStringForMediaArray } from '../media/media-utils.js';
 import type { ChatMessageInfoItem } from '../selectors/chat-selectors.js';
 import { threadInfoSelector } from '../selectors/thread-selectors.js';
 import { userIDsToRelativeUserInfos } from '../selectors/user-selectors.js';
 import { type PlatformDetails, isWebPlatform } from '../types/device-types.js';
 import type { Media } from '../types/media-types.js';
 import { messageTypes } from '../types/message-types-enum.js';
 import {
   type MessageInfo,
   type RawMessageInfo,
   type RobotextMessageInfo,
   type RawMultimediaMessageInfo,
   type MessageData,
   type MessageTruncationStatus,
   type MultimediaMessageData,
   type MessageStore,
   type ComposableMessageInfo,
   messageTruncationStatus,
   type RawComposableMessageInfo,
   type ThreadMessageInfo,
 } from '../types/message-types.js';
 import type {
   EditMessageInfo,
   RawEditMessageInfo,
 } from '../types/messages/edit.js';
 import type { ImagesMessageData } from '../types/messages/images.js';
 import type { MediaMessageData } from '../types/messages/media.js';
 import type {
   RawReactionMessageInfo,
   ReactionMessageInfo,
 } from '../types/messages/reaction.js';
 import type {
   MinimallyEncodedRawThreadInfo,
   MinimallyEncodedThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import type { RawThreadInfo, ThreadInfo } from '../types/thread-types.js';
 import type { UserInfos } from '../types/user-types.js';
 import {
   type EntityText,
   ET,
   useEntityTextAsString,
 } from '../utils/entity-text.js';
 import { useSelector } from '../utils/redux-utils.js';
 
 const localIDPrefix = 'local';
 
 const defaultMediaMessageOptions = Object.freeze({});
 
 // Prefers localID
 function messageKey(messageInfo: MessageInfo | RawMessageInfo): string {
   if (messageInfo.localID) {
     return messageInfo.localID;
   }
   invariant(messageInfo.id, 'localID should exist if ID does not');
   return messageInfo.id;
 }
 
 // Prefers serverID
 function messageID(messageInfo: MessageInfo | RawMessageInfo): string {
   if (messageInfo.id) {
     return messageInfo.id;
   }
   invariant(messageInfo.localID, 'localID should exist if ID does not');
   return messageInfo.localID;
 }
 
 function robotextForMessageInfo(
   messageInfo: RobotextMessageInfo,
-  threadInfo: ?ThreadInfo,
-  parentThreadInfo: ?ThreadInfo,
+  threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
+  parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 ): EntityText {
   const messageSpec = messageSpecs[messageInfo.type];
   invariant(
     messageSpec.robotext,
     `we're not aware of messageType ${messageInfo.type}`,
   );
   return messageSpec.robotext(messageInfo, { threadInfo, parentThreadInfo });
 }
 
 function createMessageInfo(
   rawMessageInfo: RawMessageInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   threadInfos: { +[id: string]: ThreadInfo },
 ): ?MessageInfo {
   const creatorInfo = userInfos[rawMessageInfo.creatorID];
   const creator = {
     id: rawMessageInfo.creatorID,
     username: creatorInfo ? creatorInfo.username : 'anonymous',
     isViewer: rawMessageInfo.creatorID === viewerID,
   };
 
   const createRelativeUserInfos = (userIDs: $ReadOnlyArray<string>) =>
     userIDsToRelativeUserInfos(userIDs, viewerID, userInfos);
   const createMessageInfoFromRaw = (rawInfo: RawMessageInfo) =>
     createMessageInfo(rawInfo, viewerID, userInfos, threadInfos);
 
   const messageSpec = messageSpecs[rawMessageInfo.type];
 
   return messageSpec.createMessageInfo(rawMessageInfo, creator, {
     threadInfos,
     createMessageInfoFromRaw,
     createRelativeUserInfos,
   });
 }
 
 type LengthResult = {
   +local: number,
   +realized: number,
 };
 function findMessageIDMaxLengths(
   messageIDs: $ReadOnlyArray<?string>,
 ): LengthResult {
   const result = {
     local: 0,
     realized: 0,
   };
   for (const id of messageIDs) {
     if (!id) {
       continue;
     }
     if (id.startsWith(localIDPrefix)) {
       result.local = Math.max(result.local, id.length - localIDPrefix.length);
     } else {
       result.realized = Math.max(result.realized, id.length);
     }
   }
   return result;
 }
 
 function extendMessageID(id: ?string, lengths: LengthResult): ?string {
   if (!id) {
     return id;
   }
   if (id.startsWith(localIDPrefix)) {
     const zeroPaddedID = id
       .substr(localIDPrefix.length)
       .padStart(lengths.local, '0');
     return `${localIDPrefix}${zeroPaddedID}`;
   }
   return id.padStart(lengths.realized, '0');
 }
 
 function sortMessageInfoList<T: MessageInfo | RawMessageInfo>(
   messageInfos: $ReadOnlyArray<T>,
 ): T[] {
   const lengths = findMessageIDMaxLengths(
     messageInfos.map(message => message?.id),
   );
   return _orderBy([
     'time',
     (message: T) => extendMessageID(message?.id, lengths),
   ])(['desc', 'desc'])(messageInfos);
 }
 
 const sortMessageIDs: (messages: { +[id: string]: RawMessageInfo }) => (
   messageIDs: $ReadOnlyArray<string>,
 ) => string[] = messages => messageIDs => {
   const lengths = findMessageIDMaxLengths(messageIDs);
   return _orderBy([
     (id: string) => messages[id].time,
     (id: string) => extendMessageID(id, lengths),
   ])(['desc', 'desc'])(messageIDs);
 };
 
 function rawMessageInfoFromMessageData(
   messageData: MessageData,
   id: ?string,
 ): RawMessageInfo {
   const messageSpec = messageSpecs[messageData.type];
   invariant(
     messageSpec.rawMessageInfoFromMessageData,
     `we're not aware of messageType ${messageData.type}`,
   );
   return messageSpec.rawMessageInfoFromMessageData(messageData, id);
 }
 
 function mostRecentMessageTimestamp(
   messageInfos: $ReadOnlyArray<RawMessageInfo>,
   previousTimestamp: number,
 ): number {
   if (messageInfos.length === 0) {
     return previousTimestamp;
   }
   return _maxBy('time')(messageInfos).time;
 }
 
 function usersInMessageInfos(
   messageInfos: $ReadOnlyArray<MessageInfo | RawMessageInfo>,
 ): string[] {
   const userIDs = new Set();
   for (const messageInfo of messageInfos) {
     if (messageInfo.creatorID) {
       userIDs.add(messageInfo.creatorID);
     } else if (messageInfo.creator) {
       userIDs.add(messageInfo.creator.id);
     }
   }
   return [...userIDs];
 }
 
 function combineTruncationStatuses(
   first: MessageTruncationStatus,
   second: ?MessageTruncationStatus,
 ): MessageTruncationStatus {
   if (
     first === messageTruncationStatus.EXHAUSTIVE ||
     second === messageTruncationStatus.EXHAUSTIVE
   ) {
     return messageTruncationStatus.EXHAUSTIVE;
   } else if (
     first === messageTruncationStatus.UNCHANGED &&
     second !== null &&
     second !== undefined
   ) {
     return second;
   } else {
     return first;
   }
 }
 
 function shimUnsupportedRawMessageInfos(
   rawMessageInfos: $ReadOnlyArray<RawMessageInfo>,
   platformDetails: ?PlatformDetails,
 ): RawMessageInfo[] {
   if (platformDetails && isWebPlatform(platformDetails.platform)) {
     return [...rawMessageInfos];
   }
   return rawMessageInfos.map(rawMessageInfo => {
     const { shimUnsupportedMessageInfo } = messageSpecs[rawMessageInfo.type];
     if (shimUnsupportedMessageInfo) {
       return shimUnsupportedMessageInfo(rawMessageInfo, platformDetails);
     }
     return rawMessageInfo;
   });
 }
 
 type MediaMessageDataCreationInput = {
   +threadID: string,
   +creatorID: string,
   +media: $ReadOnlyArray<Media>,
   +localID?: ?string,
   +time?: ?number,
   +sidebarCreation?: ?boolean,
   ...
 };
 function createMediaMessageData(
   input: MediaMessageDataCreationInput,
   options: {
     +forceMultimediaMessageType?: boolean,
   } = defaultMediaMessageOptions,
 ): MultimediaMessageData {
   let allMediaArePhotos = true;
   const photoMedia = [];
   for (const singleMedia of input.media) {
     if (singleMedia.type !== 'photo') {
       allMediaArePhotos = false;
       break;
     } else {
       photoMedia.push(singleMedia);
     }
   }
 
   const { localID, threadID, creatorID, sidebarCreation } = input;
   const { forceMultimediaMessageType = false } = options;
   const time = input.time ? input.time : Date.now();
   let messageData;
   if (allMediaArePhotos && !forceMultimediaMessageType) {
     messageData = ({
       type: messageTypes.IMAGES,
       threadID,
       creatorID,
       time,
       media: photoMedia,
     }: ImagesMessageData);
     if (localID) {
       messageData = { ...messageData, localID };
     }
     if (sidebarCreation) {
       messageData = { ...messageData, sidebarCreation };
     }
   } else {
     messageData = ({
       type: messageTypes.MULTIMEDIA,
       threadID,
       creatorID,
       time,
       media: input.media,
     }: MediaMessageData);
     if (localID) {
       messageData = { ...messageData, localID };
     }
     if (sidebarCreation) {
       messageData = { ...messageData, sidebarCreation };
     }
   }
   return messageData;
 }
 
 type MediaMessageInfoCreationInput = {
   ...$Exact<MediaMessageDataCreationInput>,
   +id?: ?string,
 };
 function createMediaMessageInfo(
   input: MediaMessageInfoCreationInput,
   options: {
     +forceMultimediaMessageType?: boolean,
   } = defaultMediaMessageOptions,
 ): RawMultimediaMessageInfo {
   const messageData = createMediaMessageData(input, options);
   const createRawMessageInfo =
     messageSpecs[messageData.type].rawMessageInfoFromMessageData;
   invariant(
     createRawMessageInfo,
     'multimedia message spec should have rawMessageInfoFromMessageData',
   );
   const result = createRawMessageInfo(messageData, input.id);
   invariant(
     result.type === messageTypes.MULTIMEDIA ||
       result.type === messageTypes.IMAGES,
     `media messageSpec returned MessageType ${result.type}`,
   );
   return result;
 }
 
 function stripLocalID(
   rawMessageInfo:
     | RawComposableMessageInfo
     | RawReactionMessageInfo
     | RawEditMessageInfo,
 ) {
   const { localID, ...rest } = rawMessageInfo;
   return rest;
 }
 
 function stripLocalIDs(
   input: $ReadOnlyArray<RawMessageInfo>,
 ): RawMessageInfo[] {
   const output = [];
   for (const rawMessageInfo of input) {
     if (rawMessageInfo.localID) {
       invariant(
         rawMessageInfo.id,
         'serverID should be set if localID is being stripped',
       );
       output.push(stripLocalID(rawMessageInfo));
     } else {
       output.push(rawMessageInfo);
     }
   }
   return output;
 }
 
 // Normally we call trim() to remove whitespace at the beginning and end of each
 // message. However, our Markdown parser supports a "codeBlock" format where the
 // user can indent each line to indicate a code block. If we match the
 // corresponding RegEx, we'll only trim whitespace off the end.
 function trimMessage(message: string): string {
   message = message.replace(/^\n*/, '');
   return codeBlockRegex.exec(message) ? message.trimEnd() : message.trim();
 }
 
 function createMessageQuote(message: string): string {
   // add `>` to each line to include empty lines in the quote
   return message.replace(/^/gm, '> ');
 }
 
 function createMessageReply(message: string): string {
   return createMessageQuote(message) + '\n\n';
 }
 
 function getMostRecentNonLocalMessageID(
   threadID: string,
   messageStore: MessageStore,
 ): ?string {
   const thread = messageStore.threads[threadID];
   return thread?.messageIDs.find(id => !id.startsWith(localIDPrefix));
 }
 
 function getOldestNonLocalMessageID(
   threadID: string,
   messageStore: MessageStore,
 ): ?string {
   const thread = messageStore.threads[threadID];
   if (!thread) {
     return thread;
   }
   const { messageIDs } = thread;
   for (let i = messageIDs.length - 1; i >= 0; i--) {
     const id = messageIDs[i];
     if (!id.startsWith(localIDPrefix)) {
       return id;
     }
   }
   return undefined;
 }
 
 function getMessageTitle(
   messageInfo:
     | ComposableMessageInfo
     | RobotextMessageInfo
     | ReactionMessageInfo
     | EditMessageInfo,
-  threadInfo: ThreadInfo,
-  parentThreadInfo: ?ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   markdownRules: ParserRules,
 ): EntityText {
   const { messageTitle } = messageSpecs[messageInfo.type];
   if (messageTitle) {
     return messageTitle({ messageInfo, threadInfo, markdownRules });
   }
 
   invariant(
     messageInfo.type !== messageTypes.TEXT &&
       messageInfo.type !== messageTypes.IMAGES &&
       messageInfo.type !== messageTypes.MULTIMEDIA &&
       messageInfo.type !== messageTypes.REACTION &&
       messageInfo.type !== messageTypes.EDIT_MESSAGE,
     'messageTitle can only be auto-generated for RobotextMessageInfo',
   );
   return robotextForMessageInfo(messageInfo, threadInfo, parentThreadInfo);
 }
 
 function mergeThreadMessageInfos(
   first: ThreadMessageInfo,
   second: ThreadMessageInfo,
   messages: { +[id: string]: RawMessageInfo },
 ): ThreadMessageInfo {
   let firstPointer = 0;
   let secondPointer = 0;
   const mergedMessageIDs = [];
   let firstCandidate = first.messageIDs[firstPointer];
   let secondCandidate = second.messageIDs[secondPointer];
   while (firstCandidate !== undefined || secondCandidate !== undefined) {
     if (firstCandidate === undefined) {
       mergedMessageIDs.push(secondCandidate);
       secondPointer++;
     } else if (secondCandidate === undefined) {
       mergedMessageIDs.push(firstCandidate);
       firstPointer++;
     } else if (firstCandidate === secondCandidate) {
       mergedMessageIDs.push(firstCandidate);
       firstPointer++;
       secondPointer++;
     } else {
       const firstMessage = messages[firstCandidate];
       const secondMessage = messages[secondCandidate];
       invariant(
         firstMessage && secondMessage,
         'message in messageIDs not present in MessageStore',
       );
       if (
         (firstMessage.id &&
           secondMessage.id &&
           firstMessage.id === secondMessage.id) ||
         (firstMessage.localID &&
           secondMessage.localID &&
           firstMessage.localID === secondMessage.localID)
       ) {
         mergedMessageIDs.push(firstCandidate);
         firstPointer++;
         secondPointer++;
       } else if (firstMessage.time < secondMessage.time) {
         mergedMessageIDs.push(secondCandidate);
         secondPointer++;
       } else {
         mergedMessageIDs.push(firstCandidate);
         firstPointer++;
       }
     }
     firstCandidate = first.messageIDs[firstPointer];
     secondCandidate = second.messageIDs[secondPointer];
   }
   return {
     messageIDs: mergedMessageIDs,
     startReached: first.startReached && second.startReached,
   };
 }
 
 type MessagePreviewPart = {
   +text: string,
   // unread has highest contrast, followed by primary, followed by secondary
   +style: 'unread' | 'primary' | 'secondary',
 };
 export type MessagePreviewResult = {
   +message: MessagePreviewPart,
   +username: ?MessagePreviewPart,
 };
 function useMessagePreview(
   originalMessageInfo: ?MessageInfo,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   markdownRules: ParserRules,
 ): ?MessagePreviewResult {
   let messageInfo;
   if (
     originalMessageInfo &&
     originalMessageInfo.type === messageTypes.SIDEBAR_SOURCE
   ) {
     messageInfo = originalMessageInfo.sourceMessage;
   } else {
     messageInfo = originalMessageInfo;
   }
 
   const { parentThreadID } = threadInfo;
   const parentThreadInfo = useSelector(state =>
     parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
   );
 
   const hasUsername =
     threadIsGroupChat(threadInfo) ||
     threadInfo.name !== '' ||
     messageInfo?.creator.isViewer;
   const shouldDisplayUser =
     messageInfo?.type === messageTypes.TEXT && hasUsername;
 
   const stringForUser = useStringForUser(
     shouldDisplayUser ? messageInfo?.creator : null,
   );
 
   const { unread } = threadInfo.currentUser;
   const username = React.useMemo(() => {
     if (!shouldDisplayUser) {
       return null;
     }
     invariant(
       stringForUser,
       'useStringForUser should only return falsey if pass null or undefined',
     );
     return {
       text: stringForUser,
       style: unread ? 'unread' : 'secondary',
     };
   }, [shouldDisplayUser, stringForUser, unread]);
 
   const messageTitleEntityText = React.useMemo(() => {
     if (!messageInfo) {
       return messageInfo;
     }
     return getMessageTitle(
       messageInfo,
       threadInfo,
       parentThreadInfo,
       markdownRules,
     );
   }, [messageInfo, threadInfo, parentThreadInfo, markdownRules]);
 
   const threadID = threadInfo.id;
   const entityTextToStringParams = React.useMemo(
     () => ({
       threadID,
     }),
     [threadID],
   );
   const messageTitle = useEntityTextAsString(
     messageTitleEntityText,
     entityTextToStringParams,
   );
 
   const isTextMessage = messageInfo?.type === messageTypes.TEXT;
   const message = React.useMemo(() => {
     if (messageTitle === null || messageTitle === undefined) {
       return messageTitle;
     }
 
     let style;
     if (unread) {
       style = 'unread';
     } else if (isTextMessage) {
       style = 'primary';
     } else {
       style = 'secondary';
     }
 
     return { text: messageTitle, style };
   }, [messageTitle, unread, isTextMessage]);
 
   return React.useMemo(() => {
     if (!message) {
       return message;
     }
     return { message, username };
   }, [message, username]);
 }
 
 function useMessageCreationSideEffectsFunc<Info: RawMessageInfo>(
   messageType: $PropertyType<Info, 'type'>,
 ): CreationSideEffectsFunc<Info> {
   const messageSpec = messageSpecs[messageType];
   invariant(messageSpec, `we're not aware of messageType ${messageType}`);
   invariant(
     messageSpec.useCreationSideEffectsFunc,
     `no useCreationSideEffectsFunc in message spec for ${messageType}`,
   );
   return messageSpec.useCreationSideEffectsFunc();
 }
 
 function getPinnedContentFromMessage(targetMessage: RawMessageInfo): string {
   let pinnedContent;
   if (
     targetMessage.type === messageTypes.IMAGES ||
     targetMessage.type === messageTypes.MULTIMEDIA
   ) {
     pinnedContent = contentStringForMediaArray(targetMessage.media);
   } else {
     pinnedContent = 'a message';
   }
 
   return pinnedContent;
 }
 
 function modifyItemForResultScreen(
   item: ChatMessageInfoItem,
 ): ChatMessageInfoItem {
   if (item.messageInfoType === 'composable') {
     return {
       ...item,
       startsConversation: false,
       startsCluster: true,
       endsCluster: true,
       messageInfo: {
         ...item.messageInfo,
         creator: {
           ...item.messageInfo.creator,
           isViewer: false,
         },
       },
     };
   }
   return item;
 }
 
 function constructChangeRoleEntityText(
   affectedUsers: EntityText | string,
   roleName: ?string,
 ): EntityText {
   if (!roleName) {
     return ET`assigned ${affectedUsers} a new role`;
   }
 
   return ET`assigned ${affectedUsers} the "${roleName}" role`;
 }
 
 function useNextLocalID(): string {
   const nextLocalID = useSelector(state => state.nextLocalID);
   return `${localIDPrefix}${nextLocalID}`;
 }
 
 function isInvalidSidebarSource(
   message: RawMessageInfo | MessageInfo,
 ): boolean %checks {
   return (
     (message.type === messageTypes.REACTION ||
       message.type === messageTypes.EDIT_MESSAGE ||
       message.type === messageTypes.SIDEBAR_SOURCE ||
       message.type === messageTypes.TOGGLE_PIN) &&
     !messageSpecs[message.type].canBeSidebarSource
   );
 }
 
 // Prefer checking isInvalidPinSourceForThread below. This function doesn't
 // check whether the user is attempting to pin a SIDEBAR_SOURCE in the context
 // of its parent thread, so it's not suitable for permission checks. We only
 // use it in the message-fetchers.js code where we don't have access to the
 // RawThreadInfo and don't need to do permission checks.
 function isInvalidPinSource(
   messageInfo: RawMessageInfo | MessageInfo,
 ): boolean {
   return !messageSpecs[messageInfo.type].canBePinned;
 }
 
 function isInvalidPinSourceForThread(
   messageInfo: RawMessageInfo | MessageInfo,
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ): boolean {
   const isValidPinSource = !isInvalidPinSource(messageInfo);
   const isFirstMessageInSidebar = threadInfo.sourceMessageID === messageInfo.id;
   return !isValidPinSource || isFirstMessageInSidebar;
 }
 
 function isUnableToBeRenderedIndependently(
   message: RawMessageInfo | MessageInfo,
 ): boolean {
   return !messageSpecs[message.type].canBeRenderedIndependently;
 }
 
 export {
   localIDPrefix,
   messageKey,
   messageID,
   robotextForMessageInfo,
   createMessageInfo,
   sortMessageInfoList,
   sortMessageIDs,
   rawMessageInfoFromMessageData,
   mostRecentMessageTimestamp,
   usersInMessageInfos,
   combineTruncationStatuses,
   shimUnsupportedRawMessageInfos,
   createMediaMessageData,
   createMediaMessageInfo,
   stripLocalIDs,
   trimMessage,
   createMessageQuote,
   createMessageReply,
   getMostRecentNonLocalMessageID,
   getOldestNonLocalMessageID,
   getMessageTitle,
   mergeThreadMessageInfos,
   useMessagePreview,
   useMessageCreationSideEffectsFunc,
   getPinnedContentFromMessage,
   modifyItemForResultScreen,
   constructChangeRoleEntityText,
   useNextLocalID,
   isInvalidSidebarSource,
   isInvalidPinSource,
   isInvalidPinSourceForThread,
   isUnableToBeRenderedIndependently,
 };
diff --git a/lib/shared/messages/message-spec.js b/lib/shared/messages/message-spec.js
index 00c989d36..18d4c2de1 100644
--- a/lib/shared/messages/message-spec.js
+++ b/lib/shared/messages/message-spec.js
@@ -1,122 +1,123 @@
 // @flow
 
 import type { TType } from 'tcomb';
 
 import type { PlatformDetails } from '../../types/device-types.js';
 import type { Media } from '../../types/media-types.js';
 import type {
   MessageInfo,
   ClientDBMessageInfo,
   RawComposableMessageInfo,
   RawMessageInfo,
   RawRobotextMessageInfo,
 } from '../../types/message-types.js';
 import type { RawUnsupportedMessageInfo } from '../../types/messages/unsupported.js';
+import type { MinimallyEncodedThreadInfo } from '../../types/minimally-encoded-thread-permissions-types.js';
 import type { NotifTexts } from '../../types/notif-types.js';
 import type { ThreadInfo } from '../../types/thread-types.js';
 import type { RelativeUserInfo, UserInfo } from '../../types/user-types.js';
 import type { EntityText } from '../../utils/entity-text.js';
 import { type ParserRules } from '../markdown.js';
 
 export type MessageTitleParam<Info> = {
   +messageInfo: Info,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +markdownRules: ParserRules,
 };
 
 export type RawMessageInfoFromServerDBRowParams = {
   +localID: ?string,
   +media?: $ReadOnlyArray<Media>,
   +derivedMessages?: $ReadOnlyMap<
     string,
     RawComposableMessageInfo | RawRobotextMessageInfo,
   >,
 };
 
 export type CreateMessageInfoParams = {
   +threadInfos: { +[id: string]: ThreadInfo },
   +createMessageInfoFromRaw: (rawInfo: RawMessageInfo) => ?MessageInfo,
   +createRelativeUserInfos: (
     userIDs: $ReadOnlyArray<string>,
   ) => RelativeUserInfo[],
 };
 
 export type RobotextParams = {
-  +threadInfo: ?ThreadInfo,
-  +parentThreadInfo: ?ThreadInfo,
+  +threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
+  +parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 };
 
 export type NotificationTextsParams = {
   +notifTargetUserInfo: UserInfo,
   +parentThreadInfo: ?ThreadInfo,
 };
 
 export type GeneratesNotifsParams = {
   +notifTargetUserID: string,
   +userNotMemberOfSubthreads: Set<string>,
   +fetchMessageInfoByID: (messageID: string) => Promise<?RawMessageInfo>,
 };
 
 export const pushTypes = Object.freeze({
   NOTIF: 'notif',
   RESCIND: 'rescind',
 });
 export type PushType = $Values<typeof pushTypes>;
 
 export type CreationSideEffectsFunc<RawInfo> = (
   messageInfo: RawInfo,
-  threadInfo: ThreadInfo,
-  parentThreadInfo: ?ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 ) => Promise<mixed>;
 
 export type MessageSpec<Data, RawInfo, Info> = {
   +messageContentForServerDB?: (data: Data | RawInfo) => string,
   +messageContentForClientDB?: (data: RawInfo) => string,
   +messageTitle?: (param: MessageTitleParam<Info>) => EntityText,
   +rawMessageInfoFromServerDBRow?: (
     row: Object,
     params: RawMessageInfoFromServerDBRowParams,
   ) => ?RawInfo,
   +rawMessageInfoFromClientDB: (
     clientDBMessageInfo: ClientDBMessageInfo,
   ) => RawInfo,
   +createMessageInfo: (
     rawMessageInfo: RawInfo,
     creator: RelativeUserInfo,
     params: CreateMessageInfoParams,
   ) => ?Info,
   +rawMessageInfoFromMessageData?: (messageData: Data, id: ?string) => RawInfo,
   +robotext?: (messageInfo: Info, params: RobotextParams) => EntityText,
   +shimUnsupportedMessageInfo?: (
     rawMessageInfo: RawInfo,
     platformDetails: ?PlatformDetails,
   ) => RawInfo | RawUnsupportedMessageInfo,
   +unshimMessageInfo?: (
     unwrapped: RawInfo,
     messageInfo: RawMessageInfo,
   ) => ?RawMessageInfo,
   +notificationTexts?: (
     messageInfos: $ReadOnlyArray<MessageInfo>,
     threadInfo: ThreadInfo,
     params: NotificationTextsParams,
   ) => Promise<?NotifTexts>,
   +notificationCollapseKey?: (
     rawMessageInfo: RawInfo,
     messageData: Data,
   ) => ?string,
   +generatesNotifs?: (
     rawMessageInfo: RawInfo,
     messageData: Data,
     params: GeneratesNotifsParams,
   ) => Promise<?PushType>,
   +userIDs?: (rawMessageInfo: RawInfo) => $ReadOnlyArray<string>,
   +startsThread?: boolean,
   +threadIDs?: (rawMessageInfo: RawInfo) => $ReadOnlyArray<string>,
   +includedInRepliesCount?: boolean,
   +canBeSidebarSource: boolean,
   +canBePinned: boolean,
   +canBeRenderedIndependently?: boolean,
   +parseDerivedMessages?: (row: Object, requiredIDs: Set<string>) => void,
   +useCreationSideEffectsFunc?: () => CreationSideEffectsFunc<RawInfo>,
   +validator: TType<RawInfo>,
 };
diff --git a/lib/shared/messages/text-message-spec.js b/lib/shared/messages/text-message-spec.js
index addab039e..20318af85 100644
--- a/lib/shared/messages/text-message-spec.js
+++ b/lib/shared/messages/text-message-spec.js
@@ -1,322 +1,323 @@
 // @flow
 
 import invariant from 'invariant';
 import * as SimpleMarkdown from 'simple-markdown';
 
 import {
   pushTypes,
   type MessageSpec,
   type RawMessageInfoFromServerDBRowParams,
   type NotificationTextsParams,
 } from './message-spec.js';
 import { assertSingleMessageInfo, joinResult } from './utils.js';
 import {
   changeThreadSettingsActionTypes,
   useChangeThreadSettings,
 } from '../../actions/thread-actions.js';
 import { messageTypes } from '../../types/message-types-enum.js';
 import type {
   MessageInfo,
   ClientDBMessageInfo,
 } from '../../types/message-types.js';
 import {
   type RawTextMessageInfo,
   type TextMessageData,
   type TextMessageInfo,
   rawTextMessageInfoValidator,
 } from '../../types/messages/text.js';
+import type { MinimallyEncodedThreadInfo } from '../../types/minimally-encoded-thread-permissions-types.js';
 import type { NotifTexts } from '../../types/notif-types.js';
 import { threadTypes } from '../../types/thread-types-enum.js';
 import type { ThreadInfo } from '../../types/thread-types.js';
 import type { RelativeUserInfo } from '../../types/user-types.js';
 import { useDispatchActionPromise } from '../../utils/action-utils.js';
 import { ET } from '../../utils/entity-text.js';
 import {
   type ASTNode,
   type SingleASTNode,
   stripSpoilersFromNotifications,
   stripSpoilersFromMarkdownAST,
 } from '../markdown.js';
 import {
   isUserMentioned,
   renderChatMentionsWithAltText,
 } from '../mention-utils.js';
 import { notifTextsForSidebarCreation } from '../notif-utils.js';
 import {
   threadIsGroupChat,
   extractNewMentionedParentMembers,
 } from '../thread-utils.js';
 
 /**
  * most of the markdown leaves contain `content` field
  * (it is an array or a string) apart from lists,
  * which have `items` field (that holds an array)
  */
 const rawTextFromMarkdownAST = (node: ASTNode): string => {
   if (Array.isArray(node)) {
     return node.map(rawTextFromMarkdownAST).join('');
   }
   const { content, items } = node;
   if (content && typeof content === 'string') {
     return content;
   } else if (items) {
     return rawTextFromMarkdownAST(items);
   } else if (content) {
     return rawTextFromMarkdownAST(content);
   }
   return '';
 };
 
 const getFirstNonQuotedRawLine = (
   nodes: $ReadOnlyArray<SingleASTNode>,
 ): string => {
   let result = 'message';
   for (const node of nodes) {
     if (node.type === 'blockQuote') {
       result = 'quoted message';
     } else {
       const rawText = rawTextFromMarkdownAST(node);
       if (!rawText || !rawText.replace(/\s/g, '')) {
         // handles the case of an empty(or containing only white spaces)
         // new line that usually occurs between a quote and the rest
         // of the message(we don't want it as a title, thus continue)
         continue;
       }
       return rawText;
     }
   }
   return result;
 };
 
 export const textMessageSpec: MessageSpec<
   TextMessageData,
   RawTextMessageInfo,
   TextMessageInfo,
 > = Object.freeze({
   messageContentForServerDB(
     data: TextMessageData | RawTextMessageInfo,
   ): string {
     return data.text;
   },
 
   messageContentForClientDB(data: RawTextMessageInfo): string {
     return this.messageContentForServerDB(data);
   },
 
   messageTitle({ messageInfo, markdownRules }) {
     const { text } = messageInfo;
     const parser = SimpleMarkdown.parserFor(markdownRules);
     const ast = stripSpoilersFromMarkdownAST(
       parser(text, { disableAutoBlockNewlines: true }),
     );
     return ET`${getFirstNonQuotedRawLine(ast).trim()}`;
   },
 
   rawMessageInfoFromServerDBRow(
     row: Object,
     params: RawMessageInfoFromServerDBRowParams,
   ): RawTextMessageInfo {
     let rawTextMessageInfo: RawTextMessageInfo = {
       type: messageTypes.TEXT,
       id: row.id.toString(),
       threadID: row.threadID.toString(),
       time: row.time,
       creatorID: row.creatorID.toString(),
       text: row.content,
     };
     if (params.localID) {
       rawTextMessageInfo = { ...rawTextMessageInfo, localID: params.localID };
     }
     return rawTextMessageInfo;
   },
 
   rawMessageInfoFromClientDB(
     clientDBMessageInfo: ClientDBMessageInfo,
   ): RawTextMessageInfo {
     let rawTextMessageInfo: RawTextMessageInfo = {
       type: messageTypes.TEXT,
       threadID: clientDBMessageInfo.thread,
       time: parseInt(clientDBMessageInfo.time),
       creatorID: clientDBMessageInfo.user,
       text: clientDBMessageInfo.content ?? '',
     };
     if (clientDBMessageInfo.local_id) {
       rawTextMessageInfo = {
         ...rawTextMessageInfo,
         localID: clientDBMessageInfo.local_id,
       };
     }
     if (clientDBMessageInfo.id !== clientDBMessageInfo.local_id) {
       rawTextMessageInfo = {
         ...rawTextMessageInfo,
         id: clientDBMessageInfo.id,
       };
     }
     return rawTextMessageInfo;
   },
 
   createMessageInfo(
     rawMessageInfo: RawTextMessageInfo,
     creator: RelativeUserInfo,
   ): TextMessageInfo {
     let messageInfo: TextMessageInfo = {
       type: messageTypes.TEXT,
       threadID: rawMessageInfo.threadID,
       creator,
       time: rawMessageInfo.time,
       text: rawMessageInfo.text,
     };
     if (rawMessageInfo.id) {
       messageInfo = { ...messageInfo, id: rawMessageInfo.id };
     }
     if (rawMessageInfo.localID) {
       messageInfo = { ...messageInfo, localID: rawMessageInfo.localID };
     }
     return messageInfo;
   },
 
   rawMessageInfoFromMessageData(
     messageData: TextMessageData,
     id: ?string,
   ): RawTextMessageInfo {
     const { sidebarCreation, ...rest } = messageData;
     if (id) {
       return { ...rest, id };
     } else {
       return { ...rest };
     }
   },
 
   async notificationTexts(
     messageInfos: $ReadOnlyArray<MessageInfo>,
     threadInfo: ThreadInfo,
     params: NotificationTextsParams,
   ): Promise<?NotifTexts> {
     // We special-case sidebarCreations. Usually we don't send any notifs in
     // that case to avoid a double-notif, but we need to update the original
     // notif if somebody was @-tagged in this message
     if (
       messageInfos.length === 3 &&
       messageInfos[2].type === messageTypes.SIDEBAR_SOURCE &&
       messageInfos[1].type === messageTypes.CREATE_SIDEBAR
     ) {
       const sidebarSourceMessageInfo = messageInfos[2];
       const createSidebarMessageInfo = messageInfos[1];
 
       const sourceMessage = messageInfos[2].sourceMessage;
       const { username } = params.notifTargetUserInfo;
       if (!username) {
         // If we couldn't fetch the username for some reason, we won't be able
         // to extract @-mentions anyways, so we'll give up on updating the notif
         return null;
       }
 
       if (
         sourceMessage.type === messageTypes.TEXT &&
         isUserMentioned(username, sourceMessage.text)
       ) {
         // If the notif target was already mentioned in the source message,
         // there's no need to update the notif
         return null;
       }
 
       const messageInfo = messageInfos[0];
       invariant(
         messageInfo.type === messageTypes.TEXT,
         'messageInfo should be messageTypes.TEXT!',
       );
       if (!isUserMentioned(username, messageInfo.text)) {
         // We only need to update the notif if the notif target is mentioned
         return null;
       }
 
       return notifTextsForSidebarCreation({
         createSidebarMessageInfo,
         sidebarSourceMessageInfo,
         firstSidebarMessageInfo: messageInfo,
         threadInfo,
         params,
       });
     }
 
     const messageInfo = assertSingleMessageInfo(messageInfos);
     invariant(
       messageInfo.type === messageTypes.TEXT,
       'messageInfo should be messageTypes.TEXT!',
     );
     const transformedNotificationText = stripSpoilersFromNotifications(
       renderChatMentionsWithAltText(messageInfo.text),
     );
     if (!threadInfo.name && !threadIsGroupChat(threadInfo)) {
       const thread = ET.thread({ display: 'uiName', threadInfo });
       return {
         merged: ET`${thread}: ${transformedNotificationText}`,
         body: transformedNotificationText,
         title: threadInfo.uiName,
       };
     } else {
       const creator = ET.user({ userInfo: messageInfo.creator });
       const thread = ET.thread({ display: 'shortName', threadInfo });
       return {
         merged: ET`${creator} to ${thread}: ${transformedNotificationText}`,
         body: transformedNotificationText,
         title: threadInfo.uiName,
         prefix: ET`${creator}:`,
       };
     }
   },
 
   notificationCollapseKey(
     rawMessageInfo: RawTextMessageInfo,
     messageData: TextMessageData,
   ): ?string {
     if (!messageData.sidebarCreation) {
       return null;
     }
     return joinResult(messageTypes.CREATE_SIDEBAR, rawMessageInfo.threadID);
   },
 
   generatesNotifs: async () => pushTypes.NOTIF,
 
   includedInRepliesCount: true,
 
   useCreationSideEffectsFunc: () => {
     const dispatchActionPromise = useDispatchActionPromise();
     const callChangeThreadSettings = useChangeThreadSettings();
     return async (
       messageInfo: RawTextMessageInfo,
-      threadInfo: ThreadInfo,
-      parentThreadInfo: ?ThreadInfo,
+      threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+      parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
     ) => {
       if (threadInfo.type !== threadTypes.SIDEBAR) {
         return;
       }
       invariant(parentThreadInfo, 'all sidebars should have a parent thread');
 
       const mentionedNewMembers = extractNewMentionedParentMembers(
         messageInfo.text,
         threadInfo,
         parentThreadInfo,
       );
 
       if (mentionedNewMembers.length === 0) {
         return;
       }
 
       const newMemberIDs = mentionedNewMembers.map(({ id }) => id);
       const addMembersPromise = callChangeThreadSettings({
         threadID: threadInfo.id,
         changes: { newMemberIDs },
       });
 
       dispatchActionPromise(changeThreadSettingsActionTypes, addMembersPromise);
       await addMembersPromise;
     };
   },
 
   canBeSidebarSource: true,
 
   canBePinned: true,
 
   validator: rawTextMessageInfoValidator,
 });
diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
index 7b3f70e79..3000257e4 100644
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -1,1981 +1,1996 @@
 // @flow
 
 import invariant from 'invariant';
 import _find from 'lodash/fp/find.js';
 import _mapValues from 'lodash/fp/mapValues.js';
 import _omitBy from 'lodash/fp/omitBy.js';
 import * as React from 'react';
 
 import { generatePendingThreadColor } from './color-utils.js';
 import { type ParserRules } from './markdown.js';
 import { extractUserMentionsFromText } from './mention-utils.js';
 import { getMessageTitle, isInvalidSidebarSource } from './message-utils.js';
 import { relationshipBlockedInEitherDirection } from './relationship-utils.js';
 import threadWatcher from './thread-watcher.js';
 import {
   fetchMostRecentMessagesActionTypes,
   useFetchMostRecentMessages,
 } from '../actions/message-actions.js';
 import type { RemoveUsersFromThreadInput } from '../actions/thread-actions';
 import {
   changeThreadMemberRolesActionTypes,
   newThreadActionTypes,
   removeUsersFromThreadActionTypes,
 } from '../actions/thread-actions.js';
 import { searchUsers as searchUserCall } from '../actions/user-actions.js';
 import ashoat from '../facts/ashoat.js';
 import genesis from '../facts/genesis.js';
 import { useLoggedInUserInfo } from '../hooks/account-hooks.js';
 import {
   hasPermission,
   permissionsToBitmaskHex,
   threadPermissionsFromBitmaskHex,
 } from '../permissions/minimally-encoded-thread-permissions.js';
 import {
   permissionLookup,
   getAllThreadPermissions,
   makePermissionsBlob,
 } from '../permissions/thread-permissions.js';
 import type {
   ChatThreadItem,
   ChatMessageInfoItem,
 } from '../selectors/chat-selectors.js';
 import { useGlobalThreadSearchIndex } from '../selectors/nav-selectors.js';
 import {
   threadInfoSelector,
   pendingToRealizedThreadIDsSelector,
   threadInfosSelectorForThreadType,
 } from '../selectors/thread-selectors.js';
 import {
   getRelativeMemberInfos,
   usersWithPersonalThreadSelector,
 } from '../selectors/user-selectors.js';
 import { getUserAvatarForThread } from '../shared/avatar-utils.js';
 import type { CalendarQuery } from '../types/entry-types.js';
 import { messageTypes } from '../types/message-types-enum.js';
 import {
   type RobotextMessageInfo,
   type ComposableMessageInfo,
 } from '../types/message-types.js';
 import type {
   MinimallyEncodedMemberInfo,
   MinimallyEncodedRawThreadInfo,
   MinimallyEncodedRelativeMemberInfo,
   MinimallyEncodedRoleInfo,
   MinimallyEncodedThreadCurrentUserInfo,
   MinimallyEncodedThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import { decodeMinimallyEncodedRoleInfo } from '../types/minimally-encoded-thread-permissions-types.js';
 import { userRelationshipStatus } from '../types/relationship-types.js';
 import {
   threadPermissionPropagationPrefixes,
   threadPermissions,
   configurableCommunityPermissions,
   type ThreadPermission,
   type ThreadPermissionsInfo,
   type UserSurfacedPermission,
 } from '../types/thread-permission-types.js';
 import {
   type ThreadType,
   threadTypes,
   threadTypeIsCommunityRoot,
   assertThreadType,
 } from '../types/thread-types-enum.js';
 import {
   type RawThreadInfo,
   type ThreadInfo,
   type MemberInfo,
   type ServerThreadInfo,
   type RelativeMemberInfo,
   type ThreadCurrentUserInfo,
   type RoleInfo,
   type ServerMemberInfo,
   type ClientNewThreadRequest,
   type NewThreadResult,
   type ChangeThreadSettingsPayload,
   type UserProfileThreadInfo,
 } from '../types/thread-types.js';
 import { updateTypes } from '../types/update-types-enum.js';
 import { type ClientUpdateInfo } from '../types/update-types.js';
 import type {
   GlobalAccountUserInfo,
   UserInfos,
   AccountUserInfo,
   LoggedInUserInfo,
   UserInfo,
 } from '../types/user-types.js';
 import {
   useDispatchActionPromise,
   useServerCall,
 } from '../utils/action-utils.js';
 import type { DispatchActionPromise } from '../utils/action-utils.js';
 import type { GetENSNames } from '../utils/ens-helpers.js';
 import {
   ET,
   entityTextToRawString,
   getEntityTextAsString,
   type ThreadEntity,
   type UserEntity,
 } from '../utils/entity-text.js';
 import { useSelector } from '../utils/redux-utils.js';
 import { firstLine } from '../utils/string-utils.js';
 import { trimText } from '../utils/text-utils.js';
 import { pendingThreadIDRegex } from '../utils/validation-utils.js';
 
 function threadHasPermission(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
   permission: ThreadPermission,
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   invariant(
     !permissionsDisabledByBlock.has(permission) || threadInfo?.uiName,
     `${permission} can be disabled by a block, but threadHasPermission can't ` +
       'check for a block on RawThreadInfo. Please pass in ThreadInfo instead!',
   );
   if (threadInfo.minimallyEncoded) {
     return hasPermission(threadInfo.currentUser.permissions, permission);
   }
   return permissionLookup(threadInfo.currentUser.permissions, permission);
 }
 
 function viewerIsMember(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return !!(
     threadInfo &&
     threadInfo.currentUser.role !== null &&
     threadInfo.currentUser.role !== undefined
   );
 }
 
 function threadIsInHome(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return !!(threadInfo && threadInfo.currentUser.subscription.home);
 }
 
 // Can have messages
 function threadInChatList(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return (
     viewerIsMember(threadInfo) &&
     threadHasPermission(threadInfo, threadPermissions.VISIBLE)
   );
 }
 
 function threadIsTopLevel(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return threadInChatList(threadInfo) && threadIsChannel(threadInfo);
 }
 
 function threadIsChannel(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return !!(threadInfo && threadInfo.type !== threadTypes.SIDEBAR);
 }
 
 function threadIsSidebar(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return threadInfo?.type === threadTypes.SIDEBAR;
 }
 
 function threadInBackgroundChatList(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return threadInChatList(threadInfo) && !threadIsInHome(threadInfo);
 }
 
 function threadInHomeChatList(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return threadInChatList(threadInfo) && threadIsInHome(threadInfo);
 }
 
 // Can have Calendar entries,
 // does appear as a top-level entity in the thread list
 function threadInFilterList(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   return (
     threadInChatList(threadInfo) &&
     !!threadInfo &&
     threadInfo.type !== threadTypes.SIDEBAR
   );
 }
 
 function userIsMember(
   threadInfo: ?(
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
   userID: string,
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   if (threadInfo.id === genesis.id) {
     return true;
   }
   return threadInfo.members.some(member => member.id === userID && member.role);
 }
 
 function threadActualMembers(
   memberInfos: $ReadOnlyArray<
     | MemberInfo
     | RelativeMemberInfo
     | MinimallyEncodedMemberInfo
     | MinimallyEncodedRelativeMemberInfo,
   >,
 ): $ReadOnlyArray<string> {
   return memberInfos
     .filter(memberInfo => memberInfo.role)
     .map(memberInfo => memberInfo.id);
 }
 
 function threadOtherMembers<
   T:
     | MemberInfo
     | RelativeMemberInfo
     | MinimallyEncodedMemberInfo
     | MinimallyEncodedRelativeMemberInfo,
 >(memberInfos: $ReadOnlyArray<T>, viewerID: ?string): $ReadOnlyArray<T> {
   return memberInfos.filter(
     memberInfo => memberInfo.role && memberInfo.id !== viewerID,
   );
 }
 
 function threadMembersWithoutAddedAshoat<
   T:
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 >(threadInfo: T): $PropertyType<T, 'members'> {
   if (threadInfo.community !== genesis.id) {
     return threadInfo.members;
   }
   return threadInfo.members.filter(
     member => member.id !== ashoat.id || member.role,
   );
 }
 
 function threadIsGroupChat(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): boolean {
   return threadInfo.members.length > 2;
 }
 
 function threadOrParentThreadIsGroupChat(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ) {
   return threadMembersWithoutAddedAshoat(threadInfo).length > 2;
 }
 
 function threadIsPending(threadID: ?string): boolean {
   return !!threadID?.startsWith('pending');
 }
 
 function threadIsPendingSidebar(threadID: ?string): boolean {
   return !!threadID?.startsWith('pending/sidebar/');
 }
 
 function getSingleOtherUser(
   threadInfo:
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   viewerID: ?string,
 ): ?string {
   if (!viewerID) {
     return undefined;
   }
   const otherMembers = threadOtherMembers(threadInfo.members, viewerID);
   if (otherMembers.length !== 1) {
     return undefined;
   }
   return otherMembers[0].id;
 }
 
 function getPendingThreadID(
   threadType: ThreadType,
   memberIDs: $ReadOnlyArray<string>,
   sourceMessageID: ?string,
 ): string {
   const pendingThreadKey = sourceMessageID
     ? `sidebar/${sourceMessageID}`
     : [...memberIDs].sort().join('+');
   const pendingThreadTypeString = sourceMessageID ? '' : `type${threadType}/`;
   return `pending/${pendingThreadTypeString}${pendingThreadKey}`;
 }
 
 type PendingThreadIDContents = {
   +threadType: ThreadType,
   +memberIDs: $ReadOnlyArray<string>,
   +sourceMessageID: ?string,
 };
 
 function parsePendingThreadID(
   pendingThreadID: string,
 ): ?PendingThreadIDContents {
   const pendingRegex = new RegExp(`^${pendingThreadIDRegex}$`);
   const pendingThreadIDMatches = pendingRegex.exec(pendingThreadID);
   if (!pendingThreadIDMatches) {
     return null;
   }
   const [threadTypeString, threadKey] = pendingThreadIDMatches[1].split('/');
   const threadType =
     threadTypeString === 'sidebar'
       ? threadTypes.SIDEBAR
       : assertThreadType(Number(threadTypeString.replace('type', '')));
   const memberIDs = threadTypeString === 'sidebar' ? [] : threadKey.split('+');
   const sourceMessageID = threadTypeString === 'sidebar' ? threadKey : null;
   return {
     threadType,
     memberIDs,
     sourceMessageID,
   };
 }
 
 type UserIDAndUsername = {
   +id: string,
   +username: string,
   ...
 };
 type CreatePendingThreadArgs = {
   +viewerID: string,
   +threadType: ThreadType,
   +members: $ReadOnlyArray<UserIDAndUsername>,
-  +parentThreadInfo?: ?ThreadInfo,
+  +parentThreadInfo?: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +threadColor?: ?string,
   +name?: ?string,
   +sourceMessageID?: string,
 };
 
 function createPendingThread({
   viewerID,
   threadType,
   members,
   parentThreadInfo,
   threadColor,
   name,
   sourceMessageID,
 }: CreatePendingThreadArgs): ThreadInfo {
   const now = Date.now();
   if (!members.some(member => member.id === viewerID)) {
     throw new Error(
       'createPendingThread should be called with the viewer as a member',
     );
   }
 
   const memberIDs = members.map(member => member.id);
   const threadID = getPendingThreadID(threadType, memberIDs, sourceMessageID);
 
   const permissions = {
     [threadPermissions.KNOW_OF]: true,
     [threadPermissions.VISIBLE]: true,
     [threadPermissions.VOICED]: true,
   };
 
   const membershipPermissions = getAllThreadPermissions(
     makePermissionsBlob(permissions, null, threadID, threadType),
     threadID,
   );
   const role = {
     id: `${threadID}/role`,
     name: 'Members',
     permissions,
     isDefault: true,
   };
 
   const rawThreadInfo = {
     id: threadID,
     type: threadType,
     name: name ?? null,
     description: null,
     color: threadColor ?? generatePendingThreadColor(memberIDs),
     creationTime: now,
     parentThreadID: parentThreadInfo?.id ?? null,
     containingThreadID: getContainingThreadID(parentThreadInfo, threadType),
     community: getCommunity(parentThreadInfo),
     members: members.map(member => ({
       id: member.id,
       role: role.id,
       permissions: membershipPermissions,
       isSender: false,
     })),
     roles: {
       [role.id]: role,
     },
     currentUser: {
       role: role.id,
       permissions: membershipPermissions,
       subscription: {
         pushNotifs: false,
         home: false,
       },
       unread: false,
     },
     repliesCount: 0,
     sourceMessageID,
     pinnedCount: 0,
   };
 
   const userInfos = {};
   for (const member of members) {
     const { id, username } = member;
     userInfos[id] = { id, username };
   }
 
   return threadInfoFromRawThreadInfo(rawThreadInfo, viewerID, userInfos);
 }
 
 type PendingPersonalThread = {
   +threadInfo: ThreadInfo,
   +pendingPersonalThreadUserInfo: UserInfo,
 };
 
 function createPendingPersonalThread(
   loggedInUserInfo: LoggedInUserInfo,
   userID: string,
   username: string,
 ): PendingPersonalThread {
   const pendingPersonalThreadUserInfo = {
     id: userID,
     username: username,
   };
 
   const threadInfo = createPendingThread({
     viewerID: loggedInUserInfo.id,
     threadType: threadTypes.PERSONAL,
     members: [loggedInUserInfo, pendingPersonalThreadUserInfo],
   });
 
   return { threadInfo, pendingPersonalThreadUserInfo };
 }
 
 function createPendingThreadItem(
   loggedInUserInfo: LoggedInUserInfo,
   user: UserIDAndUsername,
 ): ChatThreadItem {
   const { threadInfo, pendingPersonalThreadUserInfo } =
     createPendingPersonalThread(loggedInUserInfo, user.id, user.username);
 
   return {
     type: 'chatThreadItem',
     threadInfo,
     mostRecentMessageInfo: null,
     mostRecentNonLocalMessage: null,
     lastUpdatedTime: threadInfo.creationTime,
     lastUpdatedTimeIncludingSidebars: threadInfo.creationTime,
     sidebars: [],
     pendingPersonalThreadUserInfo,
   };
 }
 
 // Returns map from lowercase username to AccountUserInfo
 function memberLowercaseUsernameMap(
   members: $ReadOnlyArray<
     RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
   >,
 ): Map<string, AccountUserInfo> {
   const memberMap = new Map();
   for (const member of members) {
     const { id, role, username } = member;
     if (!role || !username) {
       continue;
     }
     memberMap.set(username.toLowerCase(), { id, username });
   }
   return memberMap;
 }
 
 // Returns map from user ID to AccountUserInfo
 function extractMentionedMembers(
   text: string,
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): Map<string, AccountUserInfo> {
   const memberMap = memberLowercaseUsernameMap(threadInfo.members);
   const mentions = extractUserMentionsFromText(text);
 
   const mentionedMembers = new Map();
   for (const mention of mentions) {
     const userInfo = memberMap.get(mention.toLowerCase());
     if (userInfo) {
       mentionedMembers.set(userInfo.id, userInfo);
     }
   }
   return mentionedMembers;
 }
 
 // When a member of the parent is mentioned in a sidebar,
 // they will be automatically added to that sidebar
 function extractNewMentionedParentMembers(
   messageText: string,
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): AccountUserInfo[] {
   const mentionedMembersOfParent = extractMentionedMembers(
     messageText,
     parentThreadInfo,
   );
   for (const member of threadInfo.members) {
     if (member.role) {
       mentionedMembersOfParent.delete(member.id);
     }
   }
   return [...mentionedMembersOfParent.values()];
 }
 
 type SharedCreatePendingSidebarInput = {
   +sourceMessageInfo: ComposableMessageInfo | RobotextMessageInfo,
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +loggedInUserInfo: LoggedInUserInfo,
 };
 
 type BaseCreatePendingSidebarInput = {
   ...SharedCreatePendingSidebarInput,
   +messageTitle: string,
 };
 function baseCreatePendingSidebar(
   input: BaseCreatePendingSidebarInput,
 ): ThreadInfo {
   const {
     sourceMessageInfo,
     parentThreadInfo,
     loggedInUserInfo,
     messageTitle,
   } = input;
   const { color, type: parentThreadType } = parentThreadInfo;
   const threadName = trimText(messageTitle, 30);
 
   const initialMembers = new Map();
 
   const { id: viewerID, username: viewerUsername } = loggedInUserInfo;
   initialMembers.set(viewerID, { id: viewerID, username: viewerUsername });
 
   if (userIsMember(parentThreadInfo, sourceMessageInfo.creator.id)) {
     const { id: sourceAuthorID, username: sourceAuthorUsername } =
       sourceMessageInfo.creator;
     invariant(
       sourceAuthorUsername,
       'sourceAuthorUsername should be set in createPendingSidebar',
     );
     const initialMemberUserInfo = {
       id: sourceAuthorID,
       username: sourceAuthorUsername,
     };
     initialMembers.set(sourceAuthorID, initialMemberUserInfo);
   }
 
   const singleOtherUser = getSingleOtherUser(parentThreadInfo, viewerID);
   if (parentThreadType === threadTypes.PERSONAL && singleOtherUser) {
     const singleOtherUsername = parentThreadInfo.members.find(
       member => member.id === singleOtherUser,
     )?.username;
     invariant(
       singleOtherUsername,
       'singleOtherUsername should be set in createPendingSidebar',
     );
     const singleOtherUserInfo = {
       id: singleOtherUser,
       username: singleOtherUsername,
     };
     initialMembers.set(singleOtherUser, singleOtherUserInfo);
   }
 
   if (sourceMessageInfo.type === messageTypes.TEXT) {
     const mentionedMembersOfParent = extractMentionedMembers(
       sourceMessageInfo.text,
       parentThreadInfo,
     );
     for (const [memberID, member] of mentionedMembersOfParent) {
       initialMembers.set(memberID, member);
     }
   }
 
   return createPendingThread({
     viewerID,
     threadType: threadTypes.SIDEBAR,
     members: [...initialMembers.values()],
     parentThreadInfo,
     threadColor: color,
     name: threadName,
     sourceMessageID: sourceMessageInfo.id,
   });
 }
 
 // The message title here may have ETH addresses that aren't resolved to ENS
 // names. This function should only be used in cases where we're sure that we
 // don't care about the thread title. We should prefer createPendingSidebar
 // wherever possible
 type CreateUnresolvedPendingSidebarInput = {
   ...SharedCreatePendingSidebarInput,
   +markdownRules: ParserRules,
 };
 function createUnresolvedPendingSidebar(
   input: CreateUnresolvedPendingSidebarInput,
 ): ThreadInfo {
   const {
     sourceMessageInfo,
     parentThreadInfo,
     loggedInUserInfo,
     markdownRules,
   } = input;
 
   const messageTitleEntityText = getMessageTitle(
     sourceMessageInfo,
     parentThreadInfo,
     parentThreadInfo,
     markdownRules,
   );
   const messageTitle = entityTextToRawString(messageTitleEntityText, {
     ignoreViewer: true,
   });
 
   return baseCreatePendingSidebar({
     sourceMessageInfo,
     parentThreadInfo,
     messageTitle,
     loggedInUserInfo,
   });
 }
 
 type CreatePendingSidebarInput = {
   ...SharedCreatePendingSidebarInput,
   +markdownRules: ParserRules,
   +getENSNames: ?GetENSNames,
 };
 async function createPendingSidebar(
   input: CreatePendingSidebarInput,
 ): Promise<ThreadInfo> {
   const {
     sourceMessageInfo,
     parentThreadInfo,
     loggedInUserInfo,
     markdownRules,
     getENSNames,
   } = input;
 
   const messageTitleEntityText = getMessageTitle(
     sourceMessageInfo,
     parentThreadInfo,
     parentThreadInfo,
     markdownRules,
   );
   const messageTitle = await getEntityTextAsString(
     messageTitleEntityText,
     getENSNames,
     { ignoreViewer: true },
   );
   invariant(
     messageTitle !== null && messageTitle !== undefined,
     'getEntityTextAsString only returns falsey when passed falsey',
   );
 
   return baseCreatePendingSidebar({
     sourceMessageInfo,
     parentThreadInfo,
     messageTitle,
     loggedInUserInfo,
   });
 }
 
 function pendingThreadType(numberOfOtherMembers: number): 4 | 6 | 7 {
   if (numberOfOtherMembers === 0) {
     return threadTypes.PRIVATE;
   } else if (numberOfOtherMembers === 1) {
     return threadTypes.PERSONAL;
   } else {
     return threadTypes.LOCAL;
   }
 }
 
 function threadTypeCanBePending(threadType: ThreadType): boolean {
   return (
     threadType === threadTypes.PERSONAL ||
     threadType === threadTypes.LOCAL ||
     threadType === threadTypes.SIDEBAR ||
     threadType === threadTypes.PRIVATE
   );
 }
 
 type CreateRealThreadParameters = {
   +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +dispatchActionPromise: DispatchActionPromise,
   +createNewThread: ClientNewThreadRequest => Promise<NewThreadResult>,
   +sourceMessageID: ?string,
   +viewerID: ?string,
   +handleError?: () => mixed,
   +calendarQuery: CalendarQuery,
 };
 async function createRealThreadFromPendingThread({
   threadInfo,
   dispatchActionPromise,
   createNewThread,
   sourceMessageID,
   viewerID,
   calendarQuery,
 }: CreateRealThreadParameters): Promise<string> {
   if (!threadIsPending(threadInfo.id)) {
     return threadInfo.id;
   }
 
   const otherMemberIDs = threadOtherMembers(threadInfo.members, viewerID).map(
     member => member.id,
   );
   let resultPromise;
   if (threadInfo.type !== threadTypes.SIDEBAR) {
     invariant(
       otherMemberIDs.length > 0,
       'otherMemberIDs should not be empty for threads',
     );
     resultPromise = createNewThread({
       type: pendingThreadType(otherMemberIDs.length),
       initialMemberIDs: otherMemberIDs,
       color: threadInfo.color,
       calendarQuery,
     });
   } else {
     invariant(
       sourceMessageID,
       'sourceMessageID should be set when creating a sidebar',
     );
     resultPromise = createNewThread({
       type: threadTypes.SIDEBAR,
       initialMemberIDs: otherMemberIDs,
       color: threadInfo.color,
       sourceMessageID,
       parentThreadID: threadInfo.parentThreadID,
       name: threadInfo.name,
       calendarQuery,
     });
   }
   dispatchActionPromise(newThreadActionTypes, resultPromise);
   const { newThreadID } = await resultPromise;
   return newThreadID;
 }
 
 type RawThreadInfoOptions = {
   +filterThreadEditAvatarPermission?: boolean,
   +excludePinInfo?: boolean,
   +filterManageInviteLinksPermission?: boolean,
 };
 function rawThreadInfoFromServerThreadInfo(
   serverThreadInfo: ServerThreadInfo,
   viewerID: string,
   options?: RawThreadInfoOptions,
 ): ?RawThreadInfo {
   const filterThreadEditAvatarPermission =
     options?.filterThreadEditAvatarPermission;
   const excludePinInfo = options?.excludePinInfo;
   const filterManageInviteLinksPermission =
     options?.filterManageInviteLinksPermission;
 
   const filterThreadPermissions = _omitBy(
     (v, k) =>
       (filterThreadEditAvatarPermission &&
         [
           threadPermissions.EDIT_THREAD_AVATAR,
           threadPermissionPropagationPrefixes.DESCENDANT +
             threadPermissions.EDIT_THREAD_AVATAR,
         ].includes(k)) ||
       (excludePinInfo &&
         [
           threadPermissions.MANAGE_PINS,
           threadPermissionPropagationPrefixes.DESCENDANT +
             threadPermissions.MANAGE_PINS,
         ].includes(k)) ||
       (filterManageInviteLinksPermission &&
         [threadPermissions.MANAGE_INVITE_LINKS].includes(k)),
   );
 
   const members = [];
   let currentUser;
   for (const serverMember of serverThreadInfo.members) {
     if (
       serverThreadInfo.id === genesis.id &&
       serverMember.id !== viewerID &&
       serverMember.id !== ashoat.id
     ) {
       continue;
     }
 
     const memberPermissions = filterThreadPermissions(serverMember.permissions);
 
     members.push({
       id: serverMember.id,
       role: serverMember.role,
       permissions: memberPermissions,
       isSender: serverMember.isSender,
     });
     if (serverMember.id === viewerID) {
       currentUser = {
         role: serverMember.role,
         permissions: memberPermissions,
         subscription: serverMember.subscription,
         unread: serverMember.unread,
       };
     }
   }
 
   let currentUserPermissions;
   if (currentUser) {
     currentUserPermissions = currentUser.permissions;
   } else {
     currentUserPermissions = filterThreadPermissions(
       getAllThreadPermissions(null, serverThreadInfo.id),
     );
     currentUser = {
       role: null,
       permissions: currentUserPermissions,
       subscription: {
         home: false,
         pushNotifs: false,
       },
       unread: null,
     };
   }
   if (!permissionLookup(currentUserPermissions, threadPermissions.KNOW_OF)) {
     return null;
   }
 
   const rolesWithFilteredThreadPermissions = _mapValues(role => ({
     ...role,
     permissions: filterThreadPermissions(role.permissions),
   }))(serverThreadInfo.roles);
 
   let rawThreadInfo: any = {
     id: serverThreadInfo.id,
     type: serverThreadInfo.type,
     name: serverThreadInfo.name,
     description: serverThreadInfo.description,
     color: serverThreadInfo.color,
     creationTime: serverThreadInfo.creationTime,
     parentThreadID: serverThreadInfo.parentThreadID,
     members,
     roles: rolesWithFilteredThreadPermissions,
     currentUser,
     repliesCount: serverThreadInfo.repliesCount,
     containingThreadID: serverThreadInfo.containingThreadID,
     community: serverThreadInfo.community,
   };
   const sourceMessageID = serverThreadInfo.sourceMessageID;
   if (sourceMessageID) {
     rawThreadInfo = { ...rawThreadInfo, sourceMessageID };
   }
   if (serverThreadInfo.avatar) {
     rawThreadInfo = { ...rawThreadInfo, avatar: serverThreadInfo.avatar };
   }
   if (!excludePinInfo) {
     return {
       ...rawThreadInfo,
       pinnedCount: serverThreadInfo.pinnedCount,
     };
   }
   return rawThreadInfo;
 }
 
 function threadUIName(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): string | ThreadEntity {
   if (threadInfo.name) {
     return firstLine(threadInfo.name);
   }
 
   let threadMembers:
     | $ReadOnlyArray<MinimallyEncodedRelativeMemberInfo>
     | $ReadOnlyArray<RelativeMemberInfo>;
   let memberEntities: $ReadOnlyArray<UserEntity>;
   // Branching below is to appease flow
   if (threadInfo.minimallyEncoded) {
     threadMembers = threadInfo.members.filter(memberInfo => memberInfo.role);
     memberEntities = threadMembers.map(member => ET.user({ userInfo: member }));
   } else {
     threadMembers = threadInfo.members.filter(memberInfo => memberInfo.role);
     memberEntities = threadMembers.map(member => ET.user({ userInfo: member }));
   }
 
   return {
     type: 'thread',
     id: threadInfo.id,
     name: threadInfo.name,
     display: 'uiName',
     uiName: memberEntities,
     ifJustViewer:
       threadInfo.type === threadTypes.PRIVATE
         ? 'viewer_username'
         : 'just_you_string',
   };
 }
 
 function threadInfoFromRawThreadInfo(
   rawThreadInfo: RawThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): ThreadInfo {
   let threadInfo: ThreadInfo = {
     id: rawThreadInfo.id,
     type: rawThreadInfo.type,
     name: rawThreadInfo.name,
     uiName: '',
     description: rawThreadInfo.description,
     color: rawThreadInfo.color,
     creationTime: rawThreadInfo.creationTime,
     parentThreadID: rawThreadInfo.parentThreadID,
     containingThreadID: rawThreadInfo.containingThreadID,
     community: rawThreadInfo.community,
     members: getRelativeMemberInfos(rawThreadInfo, viewerID, userInfos),
     roles: rawThreadInfo.roles,
     currentUser: getCurrentUser(rawThreadInfo, viewerID, userInfos),
     repliesCount: rawThreadInfo.repliesCount,
   };
   threadInfo = {
     ...threadInfo,
     uiName: threadUIName(threadInfo),
   };
   const { sourceMessageID, avatar, pinnedCount } = rawThreadInfo;
   if (sourceMessageID) {
     threadInfo = { ...threadInfo, sourceMessageID };
   }
 
   if (avatar) {
     threadInfo = { ...threadInfo, avatar };
   } else if (
     rawThreadInfo.type === threadTypes.PERSONAL ||
     rawThreadInfo.type === threadTypes.PRIVATE
   ) {
     threadInfo = {
       ...threadInfo,
       avatar: getUserAvatarForThread(rawThreadInfo, viewerID, userInfos),
     };
   }
 
   if (pinnedCount) {
     threadInfo = { ...threadInfo, pinnedCount };
   }
 
   return threadInfo;
 }
 
 function getCurrentUser(
   threadInfo: RawThreadInfo | ThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): ThreadCurrentUserInfo {
   if (!threadFrozenDueToBlock(threadInfo, viewerID, userInfos)) {
     return threadInfo.currentUser;
   }
 
   return {
     ...threadInfo.currentUser,
     permissions: {
       ...threadInfo.currentUser.permissions,
       ...disabledPermissions,
     },
   };
 }
 
 function getMinimallyEncodedCurrentUser(
   threadInfo: MinimallyEncodedRawThreadInfo | MinimallyEncodedThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): MinimallyEncodedThreadCurrentUserInfo {
   if (!threadFrozenDueToBlock(threadInfo, viewerID, userInfos)) {
     return threadInfo.currentUser;
   }
   const decodedPermissions = threadPermissionsFromBitmaskHex(
     threadInfo.currentUser.permissions,
   );
   const updatedPermissions = {
     ...decodedPermissions,
     ...disabledPermissions,
   };
   const encodedUpdatedPermissions = permissionsToBitmaskHex(updatedPermissions);
   return {
     ...threadInfo.currentUser,
     permissions: encodedUpdatedPermissions,
   };
 }
 
 function threadIsWithBlockedUserOnly(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
   checkOnlyViewerBlock?: boolean,
 ): boolean {
   if (
     threadOrParentThreadIsGroupChat(threadInfo) ||
     threadOrParentThreadHasAdminRole(threadInfo)
   ) {
     return false;
   }
 
   const otherUserID = getSingleOtherUser(threadInfo, viewerID);
   if (!otherUserID) {
     return false;
   }
   const otherUserRelationshipStatus =
     userInfos[otherUserID]?.relationshipStatus;
 
   if (checkOnlyViewerBlock) {
     return (
       otherUserRelationshipStatus === userRelationshipStatus.BLOCKED_BY_VIEWER
     );
   }
 
   return (
     !!otherUserRelationshipStatus &&
     relationshipBlockedInEitherDirection(otherUserRelationshipStatus)
   );
 }
 
 function threadFrozenDueToBlock(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): boolean {
   return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos);
 }
 
 function threadFrozenDueToViewerBlock(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   viewerID: ?string,
   userInfos: UserInfos,
 ): boolean {
   return threadIsWithBlockedUserOnly(threadInfo, viewerID, userInfos, true);
 }
 
 const threadTypeDescriptions: { [ThreadType]: string } = {
   [threadTypes.COMMUNITY_OPEN_SUBTHREAD]:
     'Anybody in the parent channel can see an open subchannel.',
   [threadTypes.COMMUNITY_SECRET_SUBTHREAD]:
     'Only visible to its members and admins of ancestor channels.',
 };
 
 function memberIsAdmin(
   memberInfo:
     | RelativeMemberInfo
     | MemberInfo
     | MinimallyEncodedMemberInfo
     | MinimallyEncodedRelativeMemberInfo,
   threadInfo:
     | ThreadInfo
     | RawThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ): boolean {
   return !!(
     memberInfo.role && roleIsAdminRole(threadInfo.roles[memberInfo.role])
   );
 }
 
 // Since we don't have access to all of the ancestor ThreadInfos, we approximate
 // "parent admin" as anybody with CHANGE_ROLE permissions.
 function memberHasAdminPowers(
   memberInfo:
     | RelativeMemberInfo
     | MemberInfo
     | ServerMemberInfo
     | MinimallyEncodedMemberInfo
     | MinimallyEncodedRelativeMemberInfo,
 ): boolean {
   if (memberInfo.minimallyEncoded) {
     return hasPermission(memberInfo.permissions, threadPermissions.CHANGE_ROLE);
   }
   return !!memberInfo.permissions[threadPermissions.CHANGE_ROLE]?.value;
 }
 
 function roleIsAdminRole(
   roleInfo: ?RoleInfo | ?MinimallyEncodedRoleInfo,
 ): boolean {
   return !!(roleInfo && !roleInfo.isDefault && roleInfo.name === 'Admins');
 }
 
 function threadHasAdminRole(
   threadInfo: ?(
     | RawThreadInfo
     | ThreadInfo
     | ServerThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo
   ),
 ): boolean {
   if (!threadInfo) {
     return false;
   }
   return !!_find({ name: 'Admins' })(threadInfo.roles);
 }
 
 function threadOrParentThreadHasAdminRole(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ) {
   return (
     threadMembersWithoutAddedAshoat(threadInfo).filter(member =>
       memberHasAdminPowers(member),
     ).length > 0
   );
 }
 
 function identifyInvalidatedThreads(
   updateInfos: $ReadOnlyArray<ClientUpdateInfo>,
 ): Set<string> {
   const invalidated = new Set();
   for (const updateInfo of updateInfos) {
     if (updateInfo.type === updateTypes.DELETE_THREAD) {
       invalidated.add(updateInfo.threadID);
     }
   }
   return invalidated;
 }
 
 const permissionsDisabledByBlockArray = [
   threadPermissions.VOICED,
   threadPermissions.EDIT_ENTRIES,
   threadPermissions.EDIT_THREAD_NAME,
   threadPermissions.EDIT_THREAD_COLOR,
   threadPermissions.EDIT_THREAD_DESCRIPTION,
   threadPermissions.CREATE_SUBCHANNELS,
   threadPermissions.CREATE_SIDEBARS,
   threadPermissions.JOIN_THREAD,
   threadPermissions.EDIT_PERMISSIONS,
   threadPermissions.ADD_MEMBERS,
   threadPermissions.REMOVE_MEMBERS,
 ];
 
 const permissionsDisabledByBlock: Set<ThreadPermission> = new Set(
   permissionsDisabledByBlockArray,
 );
 
 const disabledPermissions: ThreadPermissionsInfo =
   permissionsDisabledByBlockArray.reduce(
     (permissions: ThreadPermissionsInfo, permission: string) => ({
       ...permissions,
       [permission]: { value: false, source: null },
     }),
     {},
   );
 
 // Consider updating itemHeight in native/chat/chat-thread-list.react.js
 // if you change this
 const emptyItemText: string =
   `Background chats are just like normal chats, except they don't ` +
   `contribute to your unread count.\n\n` +
   `To move a chat over here, switch the “Background” option in its settings.`;
 
 function threadNoun(threadType: ThreadType, parentThreadID: ?string): string {
   if (threadType === threadTypes.SIDEBAR) {
     return 'thread';
   } else if (
     threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD &&
     parentThreadID === genesis.id
   ) {
     return 'chat';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_ANNOUNCEMENT_SUBTHREAD ||
     threadType === threadTypes.GENESIS
   ) {
     return 'channel';
   } else {
     return 'chat';
   }
 }
 
 function threadLabel(threadType: ThreadType): string {
   if (
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD
   ) {
     return 'Open';
   } else if (threadType === threadTypes.PERSONAL) {
     return 'Personal';
   } else if (threadType === threadTypes.SIDEBAR) {
     return 'Thread';
   } else if (threadType === threadTypes.PRIVATE) {
     return 'Private';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS
   ) {
     return 'Community';
   } else {
     return 'Secret';
   }
 }
 
 function useWatchThread(threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo) {
   const dispatchActionPromise = useDispatchActionPromise();
   const callFetchMostRecentMessages = useFetchMostRecentMessages();
 
   const threadID = threadInfo?.id;
   const threadNotInChatList = !threadInChatList(threadInfo);
   React.useEffect(() => {
     if (threadID && threadNotInChatList) {
       threadWatcher.watchID(threadID);
       dispatchActionPromise(
         fetchMostRecentMessagesActionTypes,
         callFetchMostRecentMessages({ threadID }),
       );
     }
     return () => {
       if (threadID && threadNotInChatList) {
         threadWatcher.removeID(threadID);
       }
     };
   }, [
     callFetchMostRecentMessages,
     dispatchActionPromise,
     threadNotInChatList,
     threadID,
   ]);
 }
 
 type ExistingThreadInfoFinderParams = {
   +searching: boolean,
   +userInfoInputArray: $ReadOnlyArray<AccountUserInfo>,
 };
 type ExistingThreadInfoFinder = (
   params: ExistingThreadInfoFinderParams,
-) => ?ThreadInfo;
+) => ?ThreadInfo | ?MinimallyEncodedThreadInfo;
+// TODO (atul): Parameterize function once `createPendingThread` is updated.
 function useExistingThreadInfoFinder(
-  baseThreadInfo: ?ThreadInfo,
+  baseThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 ): ExistingThreadInfoFinder {
   const threadInfos = useSelector(threadInfoSelector);
   const loggedInUserInfo = useLoggedInUserInfo();
   const userInfos = useSelector(state => state.userStore.userInfos);
 
   const pendingToRealizedThreadIDs = useSelector(state =>
     pendingToRealizedThreadIDsSelector(state.threadStore.threadInfos),
   );
   return React.useCallback(
-    (params: ExistingThreadInfoFinderParams): ?ThreadInfo => {
+    (
+      params: ExistingThreadInfoFinderParams,
+    ): ?ThreadInfo | ?MinimallyEncodedThreadInfo => {
       if (!baseThreadInfo) {
         return null;
       }
 
       const realizedThreadInfo = threadInfos[baseThreadInfo.id];
       if (realizedThreadInfo) {
         return realizedThreadInfo;
       }
 
       if (!loggedInUserInfo || !threadIsPending(baseThreadInfo.id)) {
         return baseThreadInfo;
       }
       const viewerID = loggedInUserInfo?.id;
 
       invariant(
         threadTypeCanBePending(baseThreadInfo.type),
         `ThreadInfo has pending ID ${baseThreadInfo.id}, but type that ` +
           `should not be pending ${baseThreadInfo.type}`,
       );
 
       const { searching, userInfoInputArray } = params;
 
       const { sourceMessageID } = baseThreadInfo;
       const pendingThreadID = searching
         ? getPendingThreadID(
             pendingThreadType(userInfoInputArray.length),
             [...userInfoInputArray.map(user => user.id), viewerID],
             sourceMessageID,
           )
         : getPendingThreadID(
             baseThreadInfo.type,
             baseThreadInfo.members.map(member => member.id),
             sourceMessageID,
           );
 
       const realizedThreadID = pendingToRealizedThreadIDs.get(pendingThreadID);
       if (realizedThreadID && threadInfos[realizedThreadID]) {
         return threadInfos[realizedThreadID];
       }
 
       const updatedThread = searching
         ? createPendingThread({
             viewerID,
             threadType: pendingThreadType(userInfoInputArray.length),
             members: [loggedInUserInfo, ...userInfoInputArray],
           })
         : baseThreadInfo;
-      return {
-        ...updatedThread,
-        currentUser: getCurrentUser(updatedThread, viewerID, userInfos),
-      };
+
+      if (updatedThread.minimallyEncoded) {
+        return {
+          ...updatedThread,
+          currentUser: getMinimallyEncodedCurrentUser(
+            updatedThread,
+            viewerID,
+            userInfos,
+          ),
+        };
+      } else {
+        return {
+          ...updatedThread,
+          currentUser: getCurrentUser(updatedThread, viewerID, userInfos),
+        };
+      }
     },
     [
       baseThreadInfo,
       threadInfos,
       loggedInUserInfo,
       pendingToRealizedThreadIDs,
       userInfos,
     ],
   );
 }
 
 type ThreadTypeParentRequirement = 'optional' | 'required' | 'disabled';
 function getThreadTypeParentRequirement(
   threadType: ThreadType,
 ): ThreadTypeParentRequirement {
   if (
     threadType === threadTypes.COMMUNITY_OPEN_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD ||
     //threadType === threadTypes.COMMUNITY_SECRET_SUBTHREAD ||
     threadType === threadTypes.COMMUNITY_SECRET_ANNOUNCEMENT_SUBTHREAD ||
     threadType === threadTypes.SIDEBAR
   ) {
     return 'required';
   } else if (
     threadType === threadTypes.COMMUNITY_ROOT ||
     threadType === threadTypes.COMMUNITY_ANNOUNCEMENT_ROOT ||
     threadType === threadTypes.GENESIS ||
     threadType === threadTypes.PERSONAL ||
     threadType === threadTypes.PRIVATE
   ) {
     return 'disabled';
   } else {
     return 'optional';
   }
 }
 
 function threadMemberHasPermission(
   threadInfo:
     | ServerThreadInfo
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   memberID: string,
   permission: ThreadPermission,
 ): boolean {
   for (const member of threadInfo.members) {
     if (member.id !== memberID) {
       continue;
     }
     if (member.minimallyEncoded) {
       return hasPermission(member.permissions, permission);
     }
     return permissionLookup(member.permissions, permission);
   }
   return false;
 }
 
 function useCanCreateSidebarFromMessage(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   messageInfo: ComposableMessageInfo | RobotextMessageInfo,
 ): boolean {
   const messageCreatorUserInfo = useSelector(
     state => state.userStore.userInfos[messageInfo.creator.id],
   );
 
   if (
     !messageInfo.id ||
     threadInfo.sourceMessageID === messageInfo.id ||
     isInvalidSidebarSource(messageInfo)
   ) {
     return false;
   }
 
   const messageCreatorRelationship = messageCreatorUserInfo?.relationshipStatus;
   const creatorRelationshipHasBlock =
     messageCreatorRelationship &&
     relationshipBlockedInEitherDirection(messageCreatorRelationship);
 
   const hasCreateSidebarsPermission = threadHasPermission(
     threadInfo,
     threadPermissions.CREATE_SIDEBARS,
   );
 
   return hasCreateSidebarsPermission && !creatorRelationshipHasBlock;
 }
 
 function useSidebarExistsOrCanBeCreated(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   messageItem: ChatMessageInfoItem,
 ): boolean {
   const canCreateSidebarFromMessage = useCanCreateSidebarFromMessage(
     threadInfo,
     messageItem.messageInfo,
   );
   return !!messageItem.threadCreatedFromMessage || canCreateSidebarFromMessage;
 }
 
 function checkIfDefaultMembersAreVoiced(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): boolean {
   const defaultRoleID = Object.keys(threadInfo.roles).find(
     roleID => threadInfo.roles[roleID].isDefault,
   );
   invariant(
     defaultRoleID !== undefined,
     'all threads should have a default role',
   );
   const defaultRole = threadInfo.roles[defaultRoleID];
   const defaultRolePermissions = defaultRole.minimallyEncoded
     ? decodeMinimallyEncodedRoleInfo(defaultRole).permissions
     : defaultRole.permissions;
 
   return !!defaultRolePermissions[threadPermissions.VOICED];
 }
 
 const draftKeySuffix = '/message_composer';
 
 function draftKeyFromThreadID(threadID: string): string {
   return `${threadID}${draftKeySuffix}`;
 }
 
 function getContainingThreadID(
   parentThreadInfo:
     | ?ServerThreadInfo
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   threadType: ThreadType,
 ): ?string {
   if (!parentThreadInfo) {
     return null;
   }
   if (threadType === threadTypes.SIDEBAR) {
     return parentThreadInfo.id;
   }
   if (!parentThreadInfo.containingThreadID) {
     return parentThreadInfo.id;
   }
   return parentThreadInfo.containingThreadID;
 }
 
 function getCommunity(
   parentThreadInfo:
     | ?ServerThreadInfo
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ): ?string {
   if (!parentThreadInfo) {
     return null;
   }
   const { id, community, type } = parentThreadInfo;
   if (community !== null && community !== undefined) {
     return community;
   }
   if (threadTypeIsCommunityRoot(type)) {
     return id;
   }
   return null;
 }
 
 function getThreadListSearchResults(
   chatListData: $ReadOnlyArray<ChatThreadItem>,
   searchText: string,
   threadFilter: ThreadInfo => boolean,
   threadSearchResults: $ReadOnlySet<string>,
   usersSearchResults: $ReadOnlyArray<GlobalAccountUserInfo>,
   loggedInUserInfo: ?LoggedInUserInfo,
 ): $ReadOnlyArray<ChatThreadItem> {
   if (!searchText) {
     return chatListData.filter(
       item =>
         threadIsTopLevel(item.threadInfo) && threadFilter(item.threadInfo),
     );
   }
 
   const privateThreads = [];
   const personalThreads = [];
   const otherThreads = [];
   for (const item of chatListData) {
     if (!threadSearchResults.has(item.threadInfo.id)) {
       continue;
     }
     if (item.threadInfo.type === threadTypes.PRIVATE) {
       privateThreads.push({ ...item, sidebars: [] });
     } else if (item.threadInfo.type === threadTypes.PERSONAL) {
       personalThreads.push({ ...item, sidebars: [] });
     } else {
       otherThreads.push({ ...item, sidebars: [] });
     }
   }
 
   const chatItems = [...privateThreads, ...personalThreads, ...otherThreads];
   if (loggedInUserInfo) {
     chatItems.push(
       ...usersSearchResults.map(user =>
         createPendingThreadItem(loggedInUserInfo, user),
       ),
     );
   }
   return chatItems;
 }
 
 type ThreadListSearchResult = {
   +threadSearchResults: $ReadOnlySet<string>,
   +usersSearchResults: $ReadOnlyArray<GlobalAccountUserInfo>,
 };
 function useThreadListSearch(
   searchText: string,
   viewerID: ?string,
 ): ThreadListSearchResult {
   const callSearchUsers = useServerCall(searchUserCall);
   const usersWithPersonalThread = useSelector(usersWithPersonalThreadSelector);
   const searchUsers = React.useCallback(
     async (usernamePrefix: string) => {
       if (usernamePrefix.length === 0) {
         return [];
       }
 
       const { userInfos } = await callSearchUsers(usernamePrefix);
       return userInfos.filter(
         info => !usersWithPersonalThread.has(info.id) && info.id !== viewerID,
       );
     },
     [callSearchUsers, usersWithPersonalThread, viewerID],
   );
 
   const [threadSearchResults, setThreadSearchResults] = React.useState(
     new Set(),
   );
   const [usersSearchResults, setUsersSearchResults] = React.useState([]);
   const threadSearchIndex = useGlobalThreadSearchIndex();
   React.useEffect(() => {
     (async () => {
       const results = threadSearchIndex.getSearchResults(searchText);
       setThreadSearchResults(new Set(results));
       const usersResults = await searchUsers(searchText);
       setUsersSearchResults(usersResults);
     })();
   }, [searchText, threadSearchIndex, searchUsers]);
 
   return { threadSearchResults, usersSearchResults };
 }
 
 function removeMemberFromThread(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
-  memberInfo: RelativeMemberInfo,
+  memberInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
   dispatchActionPromise: DispatchActionPromise,
   removeUserFromThreadServerCall: (
     input: RemoveUsersFromThreadInput,
   ) => Promise<ChangeThreadSettingsPayload>,
 ) {
   const customKeyName = `${removeUsersFromThreadActionTypes.started}:${memberInfo.id}`;
   dispatchActionPromise(
     removeUsersFromThreadActionTypes,
     removeUserFromThreadServerCall({
       threadID: threadInfo.id,
       memberIDs: [memberInfo.id],
     }),
     { customKeyName },
   );
 }
 
 function switchMemberAdminRoleInThread(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   memberInfo: RelativeMemberInfo,
   isCurrentlyAdmin: boolean,
   dispatchActionPromise: DispatchActionPromise,
   changeUserRoleServerCall: (
     threadID: string,
     memberIDs: $ReadOnlyArray<string>,
     newRole: string,
   ) => Promise<ChangeThreadSettingsPayload>,
 ) {
   let newRole = null;
   for (const roleID in threadInfo.roles) {
     const role = threadInfo.roles[roleID];
     if (isCurrentlyAdmin && role.isDefault) {
       newRole = role.id;
       break;
     } else if (!isCurrentlyAdmin && roleIsAdminRole(role)) {
       newRole = role.id;
       break;
     }
   }
   invariant(newRole !== null, 'Could not find new role');
 
   const customKeyName = `${changeThreadMemberRolesActionTypes.started}:${memberInfo.id}`;
   dispatchActionPromise(
     changeThreadMemberRolesActionTypes,
     changeUserRoleServerCall(threadInfo.id, [memberInfo.id], newRole),
     { customKeyName },
   );
 }
 
 function getAvailableThreadMemberActions(
   memberInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   canEdit: ?boolean = true,
 ): $ReadOnlyArray<'change_role' | 'remove_user'> {
   const role = memberInfo.role;
   if (!canEdit || !role) {
     return [];
   }
 
   const canRemoveMembers = threadHasPermission(
     threadInfo,
     threadPermissions.REMOVE_MEMBERS,
   );
   const canChangeRoles = threadHasPermission(
     threadInfo,
     threadPermissions.CHANGE_ROLE,
   );
 
   const result = [];
 
   if (canChangeRoles && memberInfo.username && threadHasAdminRole(threadInfo)) {
     result.push('change_role');
   }
 
   if (
     canRemoveMembers &&
     !memberInfo.isViewer &&
     (canChangeRoles || threadInfo.roles[role]?.isDefault)
   ) {
     result.push('remove_user');
   }
 
   return result;
 }
 
 function patchThreadInfoToIncludeMentionedMembersOfParent(
-  threadInfo: ThreadInfo,
-  parentThreadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   messageText: string,
   viewerID: string,
-): ThreadInfo {
+): ThreadInfo | MinimallyEncodedThreadInfo {
   const members: UserIDAndUsername[] = threadInfo.members
     .map(({ id, username }) => (username ? { id, username } : null))
     .filter(Boolean);
   const mentionedNewMembers = extractNewMentionedParentMembers(
     messageText,
     threadInfo,
     parentThreadInfo,
   );
   if (mentionedNewMembers.length === 0) {
     return threadInfo;
   }
   members.push(...mentionedNewMembers);
   return createPendingThread({
     viewerID,
     threadType: threadTypes.SIDEBAR,
     members,
     parentThreadInfo,
     threadColor: threadInfo.color,
     name: threadInfo.name,
     sourceMessageID: threadInfo.sourceMessageID,
   });
 }
 
 function threadInfoInsideCommunity(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
   communityID: string,
 ): boolean {
   return threadInfo.community === communityID || threadInfo.id === communityID;
 }
 
 type RoleAndMemberCount = {
   [roleName: string]: number,
 };
 
 function useRoleMemberCountsForCommunity(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): RoleAndMemberCount {
   return React.useMemo(() => {
     const roleIDsToNames = {};
 
     Object.keys(threadInfo.roles).forEach(roleID => {
       roleIDsToNames[roleID] = threadInfo.roles[roleID].name;
     });
 
     const roleNamesToMemberCount: RoleAndMemberCount = {};
 
     threadInfo.members.forEach(({ role: roleID }) => {
       invariant(roleID, 'Community member should have a role');
       const roleName = roleIDsToNames[roleID];
 
       roleNamesToMemberCount[roleName] =
         (roleNamesToMemberCount[roleName] ?? 0) + 1;
     });
 
     // For all community roles with no members, add them to the list with 0
     Object.keys(roleIDsToNames).forEach(roleName => {
       if (roleNamesToMemberCount[roleIDsToNames[roleName]] === undefined) {
         roleNamesToMemberCount[roleIDsToNames[roleName]] = 0;
       }
     });
 
     return roleNamesToMemberCount;
   }, [threadInfo]);
 }
 
 type RoleUserSurfacedPermissions = {
   +[roleName: string]: $ReadOnlySet<UserSurfacedPermission>,
 };
 // Iterates through the existing roles in the community and 'reverse maps'
 // the set of permission literals for each role to user-facing permission enums
 // to help pre-populate the permission checkboxes when editing roles.
 function useRoleUserSurfacedPermissions(
   threadInfo: ThreadInfo,
 ): RoleUserSurfacedPermissions {
   return React.useMemo(() => {
     const roleNamesToPermissions = {};
 
     Object.keys(threadInfo.roles).forEach(roleID => {
       const roleName = threadInfo.roles[roleID].name;
       const rolePermissions = Object.keys(threadInfo.roles[roleID].permissions);
       const setOfUserSurfacedPermissions = new Set();
 
       rolePermissions.forEach(rolePermission => {
         const userSurfacedPermission = Object.keys(
           configurableCommunityPermissions,
         ).find(key =>
           configurableCommunityPermissions[key].has(rolePermission),
         );
 
         if (userSurfacedPermission) {
           setOfUserSurfacedPermissions.add(userSurfacedPermission);
         }
       });
       roleNamesToPermissions[roleName] = setOfUserSurfacedPermissions;
     });
 
     return roleNamesToPermissions;
   }, [threadInfo]);
 }
 
 function communityOrThreadNoun(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ): string {
   return threadTypeIsCommunityRoot(threadInfo.type)
     ? 'community'
     : threadNoun(threadInfo.type, threadInfo.parentThreadID);
 }
 
 function getThreadsToDeleteText(
   threadInfo:
     | RawThreadInfo
     | ThreadInfo
     | MinimallyEncodedRawThreadInfo
     | MinimallyEncodedThreadInfo,
 ): string {
   return `${
     threadTypeIsCommunityRoot(threadInfo.type)
       ? 'Subchannels and threads'
       : 'Threads'
   } within this ${communityOrThreadNoun(threadInfo)}`;
 }
 
 function useUserProfileThreadInfo(userInfo: ?UserInfo): ?UserProfileThreadInfo {
   const userID = userInfo?.id;
   const username = userInfo?.username;
 
   const loggedInUserInfo = useLoggedInUserInfo();
   const isViewerProfile = loggedInUserInfo?.id === userID;
 
   const privateThreadInfosSelector = threadInfosSelectorForThreadType(
     threadTypes.PRIVATE,
   );
   const privateThreadInfos = useSelector(privateThreadInfosSelector);
 
   const personalThreadInfosSelector = threadInfosSelectorForThreadType(
     threadTypes.PERSONAL,
   );
 
   const personalThreadInfos = useSelector(personalThreadInfosSelector);
 
   const usersWithPersonalThread = useSelector(usersWithPersonalThreadSelector);
 
   return React.useMemo(() => {
     if (!loggedInUserInfo || !userID || !username) {
       return null;
     }
 
     if (isViewerProfile) {
       const privateThreadInfo: ?ThreadInfo = privateThreadInfos[0];
 
       return privateThreadInfo ? { threadInfo: privateThreadInfo } : null;
     }
 
     if (usersWithPersonalThread.has(userID)) {
       const personalThreadInfo: ?ThreadInfo = personalThreadInfos.find(
         threadInfo =>
           userID === getSingleOtherUser(threadInfo, loggedInUserInfo.id),
       );
 
       return personalThreadInfo ? { threadInfo: personalThreadInfo } : null;
     }
 
     const pendingPersonalThreadInfo = createPendingPersonalThread(
       loggedInUserInfo,
       userID,
       username,
     );
 
     return pendingPersonalThreadInfo;
   }, [
     isViewerProfile,
     loggedInUserInfo,
     personalThreadInfos,
     privateThreadInfos,
     userID,
     username,
     usersWithPersonalThread,
   ]);
 }
 
 export {
   threadHasPermission,
   viewerIsMember,
   threadInChatList,
   threadIsTopLevel,
   threadIsChannel,
   threadIsSidebar,
   threadInBackgroundChatList,
   threadInHomeChatList,
   threadIsInHome,
   threadInFilterList,
   userIsMember,
   threadActualMembers,
   threadOtherMembers,
   threadIsGroupChat,
   threadIsPending,
   threadIsPendingSidebar,
   getSingleOtherUser,
   getPendingThreadID,
   parsePendingThreadID,
   createPendingThread,
   createUnresolvedPendingSidebar,
   extractNewMentionedParentMembers,
   createPendingSidebar,
   pendingThreadType,
   createRealThreadFromPendingThread,
   getCurrentUser,
   getMinimallyEncodedCurrentUser,
   threadFrozenDueToBlock,
   threadFrozenDueToViewerBlock,
   rawThreadInfoFromServerThreadInfo,
   threadUIName,
   threadInfoFromRawThreadInfo,
   threadTypeDescriptions,
   memberIsAdmin,
   memberHasAdminPowers,
   roleIsAdminRole,
   threadHasAdminRole,
   identifyInvalidatedThreads,
   permissionsDisabledByBlock,
   emptyItemText,
   threadNoun,
   threadLabel,
   useWatchThread,
   useExistingThreadInfoFinder,
   getThreadTypeParentRequirement,
   threadMemberHasPermission,
   useCanCreateSidebarFromMessage,
   useSidebarExistsOrCanBeCreated,
   checkIfDefaultMembersAreVoiced,
   draftKeySuffix,
   draftKeyFromThreadID,
   threadTypeCanBePending,
   getContainingThreadID,
   getCommunity,
   getThreadListSearchResults,
   useThreadListSearch,
   removeMemberFromThread,
   switchMemberAdminRoleInThread,
   getAvailableThreadMemberActions,
   threadMembersWithoutAddedAshoat,
   patchThreadInfoToIncludeMentionedMembersOfParent,
   threadInfoInsideCommunity,
   useRoleMemberCountsForCommunity,
   useRoleUserSurfacedPermissions,
   getThreadsToDeleteText,
   useUserProfileThreadInfo,
 };
diff --git a/lib/utils/drawer-utils.react.js b/lib/utils/drawer-utils.react.js
index 8440cacdf..bda66115e 100644
--- a/lib/utils/drawer-utils.react.js
+++ b/lib/utils/drawer-utils.react.js
@@ -1,119 +1,127 @@
 // @flow
 
 import { values } from './objects.js';
 import { threadInFilterList, threadIsChannel } from '../shared/thread-utils.js';
 import type {
   MinimallyEncodedRawThreadInfo,
+  MinimallyEncodedResolvedThreadInfo,
   MinimallyEncodedThreadInfo,
 } from '../types/minimally-encoded-thread-permissions-types.js';
 import { communitySubthreads } from '../types/thread-types-enum.js';
 import type {
   RawThreadInfo,
   ThreadInfo,
   ResolvedThreadInfo,
 } from '../types/thread-types.js';
 
 export type CommunityDrawerItemData<T> = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +itemChildren: $ReadOnlyArray<CommunityDrawerItemData<T>>,
   +hasSubchannelsButton: boolean,
   +labelStyle: T,
 };
 
 function createRecursiveDrawerItemsData<LabelStyleType>(
-  childThreadInfosMap: { +[id: string]: $ReadOnlyArray<ThreadInfo> },
-  communities: $ReadOnlyArray<ResolvedThreadInfo>,
+  childThreadInfosMap: {
+    +[id: string]: $ReadOnlyArray<ThreadInfo | MinimallyEncodedThreadInfo>,
+  },
+  communities: $ReadOnlyArray<
+    ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+  >,
   labelStyles: $ReadOnlyArray<LabelStyleType>,
   maxDepth: number,
 ): $ReadOnlyArray<CommunityDrawerItemData<LabelStyleType>> {
   const result = communities.map(community => ({
     threadInfo: community,
     itemChildren: [],
     labelStyle: labelStyles[0],
     hasSubchannelsButton: false,
   }));
   let queue = result.map(item => [item, 0]);
 
   for (let i = 0; i < queue.length; i++) {
     const [item, lvl] = queue[i];
     const itemChildThreadInfos = childThreadInfosMap[item.threadInfo.id] ?? [];
 
     if (lvl < maxDepth) {
       item.itemChildren = itemChildThreadInfos
         .filter(childItem => communitySubthreads.includes(childItem.type))
         .map(childItem => ({
           threadInfo: childItem,
           itemChildren: [],
           labelStyle: labelStyles[Math.min(lvl + 1, labelStyles.length - 1)],
           hasSubchannelsButton:
             lvl + 1 === maxDepth &&
             threadHasSubchannels(childItem, childThreadInfosMap),
         }));
       queue = queue.concat(
         item.itemChildren.map(childItem => [childItem, lvl + 1]),
       );
     }
   }
   return result;
 }
 
-function threadHasSubchannels(
-  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+function threadHasSubchannels<T: ThreadInfo | MinimallyEncodedThreadInfo>(
+  threadInfo: T,
   childThreadInfosMap: {
-    +[id: string]:
-      | $ReadOnlyArray<ThreadInfo>
-      | $ReadOnlyArray<MinimallyEncodedThreadInfo>,
+    +[id: string]: $ReadOnlyArray<T>,
   },
 ): boolean {
   if (!childThreadInfosMap[threadInfo.id]?.length) {
     return false;
   }
   return childThreadInfosMap[threadInfo.id].some(thread =>
     threadIsChannel(thread),
   );
 }
 
-function appendSuffix(
-  chats: $ReadOnlyArray<ResolvedThreadInfo>,
-): ResolvedThreadInfo[] {
+function appendSuffix<
+  T: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+>(chats: $ReadOnlyArray<T>): T[] {
   const result = [];
   const names = new Map<string, number>();
 
   for (const chat of chats) {
     let name = chat.uiName;
     const numberOfOccurrences = names.get(name);
     names.set(name, (numberOfOccurrences ?? 0) + 1);
     if (numberOfOccurrences) {
       name = `${name} (${numberOfOccurrences.toString()})`;
     }
-    result.push({ ...chat, uiName: name });
+    // Branching to appease `flow`.
+    if (chat.minimallyEncoded) {
+      result.push({ ...chat, uiName: name });
+    } else {
+      result.push({ ...chat, uiName: name });
+    }
   }
   return result;
 }
 
 function filterThreadIDsBelongingToCommunity(
   communityID: string,
   threadInfosObj: {
     +[id: string]:
       | ThreadInfo
       | RawThreadInfo
       | MinimallyEncodedThreadInfo
       | MinimallyEncodedRawThreadInfo,
   },
 ): $ReadOnlySet<string> {
   const threadInfos = values(threadInfosObj);
   const threadIDs = threadInfos
     .filter(
       thread =>
         (thread.community === communityID || thread.id === communityID) &&
         threadInFilterList(thread),
     )
     .map(item => item.id);
   return new Set(threadIDs);
 }
 
 export {
   createRecursiveDrawerItemsData,
   appendSuffix,
   filterThreadIDsBelongingToCommunity,
 };
diff --git a/lib/utils/entity-helpers.js b/lib/utils/entity-helpers.js
index 4fa733ced..20f1e69f4 100644
--- a/lib/utils/entity-helpers.js
+++ b/lib/utils/entity-helpers.js
@@ -1,128 +1,142 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import {
   ET,
   useENSNamesForEntityText,
   entityTextToRawString,
 } from './entity-text.js';
 import type { UseENSNamesOptions } from '../hooks/ens-cache.js';
+import type {
+  MinimallyEncodedResolvedThreadInfo,
+  MinimallyEncodedThreadInfo,
+} from '../types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo, ResolvedThreadInfo } from '../types/thread-types.js';
 import { values } from '../utils/objects.js';
 
 function useResolvedThreadInfos(
-  threadInfos: $ReadOnlyArray<ThreadInfo>,
+  threadInfos: $ReadOnlyArray<ThreadInfo | MinimallyEncodedThreadInfo>,
   options?: ?UseENSNamesOptions,
-): $ReadOnlyArray<ResolvedThreadInfo> {
+): $ReadOnlyArray<ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo> {
   const entityText = React.useMemo(
     () => threadInfos.map(threadInfo => threadInfo.uiName),
     [threadInfos],
   );
   const withENSNames = useENSNamesForEntityText(entityText, options);
   invariant(
     withENSNames,
     'useENSNamesForEntityText only returns falsey when passed falsey',
   );
   return React.useMemo(
     () =>
       threadInfos.map((threadInfo, i) => {
         if (typeof threadInfo.uiName === 'string') {
           // Flow wants return { ...threadInfo, uiName: threadInfo.uiName }
           // but that's wasteful and unneeded, so we any-cast here
           return (threadInfo: any);
         }
         const resolvedThreadEntity = withENSNames[i];
-        return {
-          ...threadInfo,
-          uiName: entityTextToRawString([resolvedThreadEntity]),
-        };
+        // Branching to appease `flow`.
+        if (threadInfo.minimallyEncoded) {
+          return {
+            ...threadInfo,
+            uiName: entityTextToRawString([resolvedThreadEntity]),
+          };
+        } else {
+          return {
+            ...threadInfo,
+            uiName: entityTextToRawString([resolvedThreadEntity]),
+          };
+        }
       }),
     [threadInfos, withENSNames],
   );
 }
 
 function useResolvedOptionalThreadInfos(
   threadInfos: ?$ReadOnlyArray<ThreadInfo>,
 ): ?$ReadOnlyArray<ResolvedThreadInfo> {
   const entityText = React.useMemo(() => {
     if (!threadInfos) {
       return null;
     }
     return threadInfos.map(threadInfo =>
       ET.thread({ display: 'uiName', threadInfo }),
     );
   }, [threadInfos]);
   const withENSNames = useENSNamesForEntityText(entityText);
   return React.useMemo(() => {
     if (!threadInfos) {
       return threadInfos;
     }
     invariant(
       withENSNames,
       'useENSNamesForEntityText only returns falsey when passed falsey',
     );
     return threadInfos.map((threadInfo, i) => {
       if (typeof threadInfo.uiName === 'string') {
         // Flow wants return { ...threadInfo, uiName: threadInfo.uiName }
         // but that's wasteful and unneeded, so we any-cast here
         return (threadInfo: any);
       }
       const resolvedThreadEntity = withENSNames[i];
       return {
         ...threadInfo,
         uiName: entityTextToRawString([resolvedThreadEntity]),
       };
     });
   }, [threadInfos, withENSNames]);
 }
 
 function useResolvedThreadInfosObj(
   threadInfosObj: { +[id: string]: ThreadInfo },
   options?: ?UseENSNamesOptions,
 ): { +[id: string]: ResolvedThreadInfo } {
   const threadInfosArray = React.useMemo(
     () => values(threadInfosObj),
     [threadInfosObj],
   );
   const resolvedThreadInfosArray = useResolvedThreadInfos(
     threadInfosArray,
     options,
   );
   return React.useMemo(() => {
     const obj = {};
     for (const resolvedThreadInfo of resolvedThreadInfosArray) {
       obj[resolvedThreadInfo.id] = resolvedThreadInfo;
     }
     return obj;
   }, [resolvedThreadInfosArray]);
 }
 
-function useResolvedThreadInfo(threadInfo: ThreadInfo): ResolvedThreadInfo {
+function useResolvedThreadInfo(
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+): ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo {
   const resolutionInput = React.useMemo(() => [threadInfo], [threadInfo]);
   const [resolvedThreadInfo] = useResolvedThreadInfos(resolutionInput);
   return resolvedThreadInfo;
 }
 
 function useResolvedOptionalThreadInfo(
-  threadInfo: ?ThreadInfo,
-): ?ResolvedThreadInfo {
+  threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
+): ?ResolvedThreadInfo | ?MinimallyEncodedResolvedThreadInfo {
   const resolutionInput = React.useMemo(
     () => (threadInfo ? [threadInfo] : []),
     [threadInfo],
   );
   const [resolvedThreadInfo] = useResolvedThreadInfos(resolutionInput);
   if (!threadInfo) {
     return threadInfo;
   }
   return resolvedThreadInfo;
 }
 
 export {
   useResolvedThreadInfos,
   useResolvedOptionalThreadInfos,
   useResolvedThreadInfosObj,
   useResolvedThreadInfo,
   useResolvedOptionalThreadInfo,
 };
diff --git a/native/calendar/entry.react.js b/native/calendar/entry.react.js
index f8d877135..920baf7f8 100644
--- a/native/calendar/entry.react.js
+++ b/native/calendar/entry.react.js
@@ -1,822 +1,823 @@
 // @flow
 
 import Icon from '@expo/vector-icons/FontAwesome.js';
 import invariant from 'invariant';
 import _isEqual from 'lodash/fp/isEqual.js';
 import _omit from 'lodash/fp/omit.js';
 import * as React from 'react';
 import {
   View,
   Text,
   TextInput as BaseTextInput,
   Platform,
   TouchableWithoutFeedback,
   LayoutAnimation,
   Keyboard,
 } from 'react-native';
 import { useDispatch } from 'react-redux';
 import shallowequal from 'shallowequal';
 import tinycolor from 'tinycolor2';
 
 import {
   createEntryActionTypes,
   useCreateEntry,
   saveEntryActionTypes,
   useSaveEntry,
   deleteEntryActionTypes,
   useDeleteEntry,
   concurrentModificationResetActionType,
 } from 'lib/actions/entry-actions.js';
 import { registerFetchKey } from 'lib/reducers/loading-reducer.js';
 import { connectionSelector } from 'lib/selectors/keyserver-selectors.js';
 import { colorIsDark } from 'lib/shared/color-utils.js';
 import { entryKey } from 'lib/shared/entry-utils.js';
 import { threadHasPermission } from 'lib/shared/thread-utils.js';
 import type { Shape } from 'lib/types/core.js';
 import type {
   CreateEntryInfo,
   SaveEntryInfo,
   SaveEntryResult,
   SaveEntryPayload,
   CreateEntryPayload,
   DeleteEntryInfo,
   DeleteEntryResult,
   CalendarQuery,
 } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type { MinimallyEncodedResolvedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import {
   type ThreadInfo,
   type ResolvedThreadInfo,
 } from 'lib/types/thread-types.js';
 import {
   useDispatchActionPromise,
   type DispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 import { dateString } from 'lib/utils/date-utils.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 import { ServerError } from 'lib/utils/errors.js';
 import sleep from 'lib/utils/sleep.js';
 import { ashoatKeyserverID } from 'lib/utils/validation-utils.js';
 
 import type { EntryInfoWithHeight } from './calendar.react.js';
 import LoadingIndicator from './loading-indicator.react.js';
 import {
   type MessageListParams,
   useNavigateToThread,
 } from '../chat/message-list-types.js';
 import Button from '../components/button.react.js';
 import SingleLine from '../components/single-line.react.js';
 import TextInput from '../components/text-input.react.js';
 import Markdown from '../markdown/markdown.react.js';
 import { inlineMarkdownRules } from '../markdown/rules.react.js';
 import {
   createIsForegroundSelector,
   nonThreadCalendarQuery,
 } from '../navigation/nav-selectors.js';
 import { NavContext } from '../navigation/navigation-context.js';
 import { ThreadPickerModalRouteName } from '../navigation/route-names.js';
 import type { TabNavigationProp } from '../navigation/tab-navigator.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { colors, useStyles } from '../themes/colors.js';
 import type { LayoutEvent } from '../types/react-native.js';
 import Alert from '../utils/alert.js';
 import { waitForInteractions } from '../utils/timers.js';
 
 function hueDistance(firstColor: string, secondColor: string): number {
   const firstHue = tinycolor(firstColor).toHsv().h;
   const secondHue = tinycolor(secondColor).toHsv().h;
   const distance = Math.abs(firstHue - secondHue);
   return distance > 180 ? 360 - distance : distance;
 }
 const omitEntryInfo = _omit(['entryInfo']);
 
 function dummyNodeForEntryHeightMeasurement(
   entryText: string,
 ): React.Element<typeof View> {
   const text = entryText === '' ? ' ' : entryText;
   return (
     <View style={[unboundStyles.entry, unboundStyles.textContainer]}>
       <Text style={unboundStyles.text}>{text}</Text>
     </View>
   );
 }
 
 type SharedProps = {
   +navigation: TabNavigationProp<'Calendar'>,
   +entryInfo: EntryInfoWithHeight,
   +visible: boolean,
   +active: boolean,
   +makeActive: (entryKey: string, active: boolean) => void,
   +onEnterEditMode: (entryInfo: EntryInfoWithHeight) => void,
   +onConcludeEditMode: (entryInfo: EntryInfoWithHeight) => void,
   +onPressWhitespace: () => void,
   +entryRef: (entryKey: string, entry: ?InternalEntry) => void,
 };
 type BaseProps = {
   ...SharedProps,
   +threadInfo: ThreadInfo,
 };
 type Props = {
   ...SharedProps,
-  +threadInfo: ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
   // Redux state
   +calendarQuery: () => CalendarQuery,
   +online: boolean,
   +styles: typeof unboundStyles,
   // Nav state
   +threadPickerActive: boolean,
   +navigateToThread: (params: MessageListParams) => void,
   // Redux dispatch functions
   +dispatch: Dispatch,
   +dispatchActionPromise: DispatchActionPromise,
   // async functions that hit server APIs
   +createEntry: (info: CreateEntryInfo) => Promise<CreateEntryPayload>,
   +saveEntry: (info: SaveEntryInfo) => Promise<SaveEntryResult>,
   +deleteEntry: (info: DeleteEntryInfo) => Promise<DeleteEntryResult>,
 };
 type State = {
   +editing: boolean,
   +text: string,
   +loadingStatus: LoadingStatus,
   +height: number,
 };
 class InternalEntry extends React.Component<Props, State> {
   textInput: ?React.ElementRef<typeof BaseTextInput>;
   creating: boolean = false;
   needsUpdateAfterCreation: boolean = false;
   needsDeleteAfterCreation: boolean = false;
   nextSaveAttemptIndex: number = 0;
   mounted: boolean = false;
   deleted: boolean = false;
   currentlySaving: ?string;
 
   constructor(props: Props) {
     super(props);
     this.state = {
       editing: false,
       text: props.entryInfo.text,
       loadingStatus: 'inactive',
       height: props.entryInfo.textHeight,
     };
     this.state = {
       ...this.state,
       editing: InternalEntry.isActive(props, this.state),
     };
   }
 
   guardedSetState(input: Shape<State>) {
     if (this.mounted) {
       this.setState(input);
     }
   }
 
   shouldComponentUpdate(nextProps: Props, nextState: State): boolean {
     return (
       !shallowequal(nextState, this.state) ||
       !shallowequal(omitEntryInfo(nextProps), omitEntryInfo(this.props)) ||
       !_isEqual(nextProps.entryInfo)(this.props.entryInfo)
     );
   }
 
   componentDidUpdate(prevProps: Props, prevState: State) {
     const wasActive = InternalEntry.isActive(prevProps, prevState);
     const isActive = InternalEntry.isActive(this.props, this.state);
 
     if (
       !isActive &&
       (this.props.entryInfo.text !== prevProps.entryInfo.text ||
         this.props.entryInfo.textHeight !== prevProps.entryInfo.textHeight) &&
       (this.props.entryInfo.text !== this.state.text ||
         this.props.entryInfo.textHeight !== this.state.height)
     ) {
       this.guardedSetState({
         text: this.props.entryInfo.text,
         height: this.props.entryInfo.textHeight,
       });
       this.currentlySaving = null;
     }
 
     if (
       !this.props.active &&
       this.state.text === prevState.text &&
       this.state.height !== prevState.height &&
       this.state.height !== this.props.entryInfo.textHeight
     ) {
       const approxMeasuredHeight = Math.round(this.state.height * 1000) / 1000;
       const approxExpectedHeight =
         Math.round(this.props.entryInfo.textHeight * 1000) / 1000;
       console.log(
         `Entry height for ${entryKey(this.props.entryInfo)} was expected to ` +
           `be ${approxExpectedHeight} but is actually ` +
           `${approxMeasuredHeight}. This means Calendar's FlatList isn't ` +
           'getting the right item height for some of its nodes, which is ' +
           'guaranteed to cause glitchy behavior. Please investigate!!',
       );
     }
 
     // Our parent will set the active prop to false if something else gets
     // pressed or if the Entry is scrolled out of view. In either of those cases
     // we should complete the edit process.
     if (!this.props.active && prevProps.active) {
       this.completeEdit();
     }
 
     if (this.state.height !== prevState.height || isActive !== wasActive) {
       LayoutAnimation.easeInEaseOut();
     }
 
     if (
       this.props.online &&
       !prevProps.online &&
       this.state.loadingStatus === 'error'
     ) {
       this.save();
     }
 
     if (
       this.state.editing &&
       prevState.editing &&
       (this.state.text.trim() === '') !== (prevState.text.trim() === '')
     ) {
       LayoutAnimation.easeInEaseOut();
     }
   }
 
   componentDidMount() {
     this.mounted = true;
     this.props.entryRef(entryKey(this.props.entryInfo), this);
   }
 
   componentWillUnmount() {
     this.mounted = false;
     this.props.entryRef(entryKey(this.props.entryInfo), null);
     this.props.onConcludeEditMode(this.props.entryInfo);
   }
 
   static isActive(props: Props, state: State): boolean {
     return (
       props.active ||
       state.editing ||
       !props.entryInfo.id ||
       state.loadingStatus !== 'inactive'
     );
   }
 
   render(): React.Node {
     const active = InternalEntry.isActive(this.props, this.state);
     const { editing } = this.state;
     const threadColor = `#${this.props.threadInfo.color}`;
 
     const darkColor = colorIsDark(this.props.threadInfo.color);
     let actionLinks = null;
     if (active) {
       const actionLinksColor = darkColor ? '#D3D3D3' : '#404040';
       const actionLinksTextStyle = { color: actionLinksColor };
       const { modalIosHighlightUnderlay: actionLinksUnderlayColor } = darkColor
         ? colors.dark
         : colors.light;
       const loadingIndicatorCanUseRed = hueDistance('red', threadColor) > 50;
       let editButtonContent = null;
       if (editing && this.state.text.trim() === '') {
         // nothing
       } else if (editing) {
         editButtonContent = (
           <React.Fragment>
             <Icon name="check" size={14} color={actionLinksColor} />
             <Text
               style={[this.props.styles.leftLinksText, actionLinksTextStyle]}
             >
               SAVE
             </Text>
           </React.Fragment>
         );
       } else {
         editButtonContent = (
           <React.Fragment>
             <Icon
               name="pencil"
               size={12}
               color={actionLinksColor}
               style={this.props.styles.pencilIcon}
             />
             <Text
               style={[this.props.styles.leftLinksText, actionLinksTextStyle]}
             >
               EDIT
             </Text>
           </React.Fragment>
         );
       }
       actionLinks = (
         <View style={this.props.styles.actionLinks}>
           <View style={this.props.styles.leftLinks}>
             <Button
               onPress={this.delete}
               iosFormat="highlight"
               iosHighlightUnderlayColor={actionLinksUnderlayColor}
               iosActiveOpacity={0.85}
               style={this.props.styles.button}
             >
               <View style={this.props.styles.buttonContents}>
                 <Icon name="close" size={14} color={actionLinksColor} />
                 <Text
                   style={[
                     this.props.styles.leftLinksText,
                     actionLinksTextStyle,
                   ]}
                 >
                   DELETE
                 </Text>
               </View>
             </Button>
             <Button
               onPress={this.onPressEdit}
               iosFormat="highlight"
               iosHighlightUnderlayColor={actionLinksUnderlayColor}
               iosActiveOpacity={0.85}
               style={this.props.styles.button}
             >
               <View style={this.props.styles.buttonContents}>
                 {editButtonContent}
               </View>
             </Button>
           </View>
           <View style={this.props.styles.rightLinks}>
             <LoadingIndicator
               loadingStatus={this.state.loadingStatus}
               color={actionLinksColor}
               canUseRed={loadingIndicatorCanUseRed}
             />
             <Button
               onPress={this.onPressThreadName}
               iosFormat="highlight"
               iosHighlightUnderlayColor={actionLinksUnderlayColor}
               iosActiveOpacity={0.85}
               style={this.props.styles.button}
             >
               <SingleLine
                 style={[this.props.styles.rightLinksText, actionLinksTextStyle]}
               >
                 {this.props.threadInfo.uiName}
               </SingleLine>
             </Button>
           </View>
         </View>
       );
     }
 
     const textColor = darkColor ? 'white' : 'black';
     let textInput;
     if (editing) {
       const textInputStyle = {
         color: textColor,
         backgroundColor: threadColor,
       };
       const selectionColor = darkColor ? '#129AFF' : '#036AFF';
       textInput = (
         <TextInput
           style={[this.props.styles.textInput, textInputStyle]}
           value={this.state.text}
           onChangeText={this.onChangeText}
           multiline={true}
           onFocus={this.onFocus}
           onBlur={this.onBlur}
           selectionColor={selectionColor}
           ref={this.textInputRef}
         />
       );
     }
 
     let rawText = this.state.text;
     if (rawText === '' || rawText.slice(-1) === '\n') {
       rawText += ' ';
     }
     const textStyle = {
       ...this.props.styles.text,
       color: textColor,
       opacity: textInput ? 0 : 1,
     };
     // We use an empty View to set the height of the entry, and then position
     // the Text and TextInput absolutely. This allows to measure height changes
     // to the Text while controlling the actual height of the entry.
     const heightStyle = { height: this.state.height };
     const entryStyle = { backgroundColor: threadColor };
     const opacity = editing ? 1.0 : 0.6;
     const canEditEntry = threadHasPermission(
       this.props.threadInfo,
       threadPermissions.EDIT_ENTRIES,
     );
     return (
       <TouchableWithoutFeedback onPress={this.props.onPressWhitespace}>
         <View style={this.props.styles.container}>
           <Button
             disabled={!canEditEntry}
             onPress={this.setActive}
             style={[this.props.styles.entry, entryStyle]}
             androidFormat="opacity"
             iosActiveOpacity={opacity}
           >
             <View>
               <View style={heightStyle} />
               <View
                 style={this.props.styles.textContainer}
                 onLayout={this.onTextContainerLayout}
               >
                 <Markdown
                   style={textStyle}
                   rules={inlineMarkdownRules(darkColor)}
                 >
                   {rawText}
                 </Markdown>
               </View>
               {textInput}
             </View>
             {actionLinks}
           </Button>
         </View>
       </TouchableWithoutFeedback>
     );
   }
 
   textInputRef: (textInput: ?React.ElementRef<typeof BaseTextInput>) => void =
     textInput => {
       this.textInput = textInput;
       if (textInput && this.state.editing) {
         this.enterEditMode();
       }
     };
 
   enterEditMode: () => Promise<void> = async () => {
     this.setActive();
     this.props.onEnterEditMode(this.props.entryInfo);
     if (Platform.OS === 'android') {
       // If we don't do this, the TextInput focuses
       // but the soft keyboard doesn't come up
       await waitForInteractions();
       await sleep(15);
     }
     this.focus();
   };
 
   focus: () => void = () => {
     const { textInput } = this;
     if (!textInput) {
       return;
     }
     textInput.focus();
   };
 
   onFocus: () => void = () => {
     if (this.props.threadPickerActive) {
       this.props.navigation.goBack();
     }
   };
 
   setActive: () => void = () => this.makeActive(true);
 
   completeEdit: () => void = () => {
     // This gets called from CalendarInputBar (save button above keyboard),
     // onPressEdit (save button in Entry action links), and in
     // componentDidUpdate above when Calendar sets this Entry to inactive.
     // Calendar does this if something else gets pressed or the Entry is
     // scrolled out of view. Note that an Entry won't consider itself inactive
     // until it's done updating the server with its state, and if the network
     // requests fail it may stay "active".
     if (this.textInput) {
       this.textInput.blur();
     }
     this.onBlur();
   };
 
   onBlur: () => void = () => {
     if (this.state.text.trim() === '') {
       this.delete();
     } else if (this.props.entryInfo.text !== this.state.text) {
       this.save();
     }
     this.guardedSetState({ editing: false });
     this.makeActive(false);
     this.props.onConcludeEditMode(this.props.entryInfo);
   };
 
   save: () => void = () => {
     this.dispatchSave(this.props.entryInfo.id, this.state.text);
   };
 
   onTextContainerLayout: (event: LayoutEvent) => void = event => {
     this.guardedSetState({
       height: Math.ceil(event.nativeEvent.layout.height),
     });
   };
 
   onChangeText: (newText: string) => void = newText => {
     this.guardedSetState({ text: newText });
   };
 
   makeActive(active: boolean) {
     const { threadInfo } = this.props;
     if (!threadHasPermission(threadInfo, threadPermissions.EDIT_ENTRIES)) {
       return;
     }
     this.props.makeActive(entryKey(this.props.entryInfo), active);
   }
 
   dispatchSave(serverID: ?string, newText: string) {
     if (this.currentlySaving === newText) {
       return;
     }
     this.currentlySaving = newText;
 
     if (newText.trim() === '') {
       // We don't save the empty string, since as soon as the element becomes
       // inactive it'll get deleted
       return;
     }
 
     if (!serverID) {
       if (this.creating) {
         // We need the first save call to return so we know the ID of the entry
         // we're updating, so we'll need to handle this save later
         this.needsUpdateAfterCreation = true;
         return;
       } else {
         this.creating = true;
       }
     }
 
     this.guardedSetState({ loadingStatus: 'loading' });
     if (!serverID) {
       this.props.dispatchActionPromise(
         createEntryActionTypes,
         this.createAction(newText),
       );
     } else {
       this.props.dispatchActionPromise(
         saveEntryActionTypes,
         this.saveAction(serverID, newText),
       );
     }
   }
 
   async createAction(text: string): Promise<CreateEntryPayload> {
     const localID = this.props.entryInfo.localID;
     invariant(localID, "if there's no serverID, there should be a localID");
     const curSaveAttempt = this.nextSaveAttemptIndex++;
     try {
       const response = await this.props.createEntry({
         text,
         timestamp: this.props.entryInfo.creationTime,
         date: dateString(
           this.props.entryInfo.year,
           this.props.entryInfo.month,
           this.props.entryInfo.day,
         ),
         threadID: this.props.entryInfo.threadID,
         localID,
         calendarQuery: this.props.calendarQuery(),
       });
       if (curSaveAttempt + 1 === this.nextSaveAttemptIndex) {
         this.guardedSetState({ loadingStatus: 'inactive' });
       }
       this.creating = false;
       if (this.needsUpdateAfterCreation) {
         this.needsUpdateAfterCreation = false;
         this.dispatchSave(response.entryID, this.state.text);
       }
       if (this.needsDeleteAfterCreation) {
         this.needsDeleteAfterCreation = false;
         this.dispatchDelete(response.entryID);
       }
       return response;
     } catch (e) {
       if (curSaveAttempt + 1 === this.nextSaveAttemptIndex) {
         this.guardedSetState({ loadingStatus: 'error' });
       }
       this.currentlySaving = null;
       this.creating = false;
       throw e;
     }
   }
 
   async saveAction(
     entryID: string,
     newText: string,
   ): Promise<SaveEntryPayload> {
     const curSaveAttempt = this.nextSaveAttemptIndex++;
     try {
       const response = await this.props.saveEntry({
         entryID,
         text: newText,
         prevText: this.props.entryInfo.text,
         timestamp: Date.now(),
         calendarQuery: this.props.calendarQuery(),
       });
       if (curSaveAttempt + 1 === this.nextSaveAttemptIndex) {
         this.guardedSetState({ loadingStatus: 'inactive' });
       }
       return { ...response, threadID: this.props.entryInfo.threadID };
     } catch (e) {
       if (curSaveAttempt + 1 === this.nextSaveAttemptIndex) {
         this.guardedSetState({ loadingStatus: 'error' });
       }
       this.currentlySaving = null;
       if (e instanceof ServerError && e.message === 'concurrent_modification') {
         const revertedText = e.payload?.db;
         const onRefresh = () => {
           this.guardedSetState({
             loadingStatus: 'inactive',
             text: revertedText,
           });
           this.props.dispatch({
             type: concurrentModificationResetActionType,
             payload: { id: entryID, dbText: revertedText },
           });
         };
         Alert.alert(
           'Concurrent modification',
           'It looks like somebody is attempting to modify that field at the ' +
             'same time as you! Please try again.',
           [{ text: 'OK', onPress: onRefresh }],
           { cancelable: false },
         );
       }
       throw e;
     }
   }
 
   delete: () => void = () => {
     this.dispatchDelete(this.props.entryInfo.id);
   };
 
   onPressEdit: () => void = () => {
     if (this.state.editing) {
       this.completeEdit();
     } else {
       this.guardedSetState({ editing: true });
     }
   };
 
   dispatchDelete(serverID: ?string) {
     if (this.deleted) {
       return;
     }
     this.deleted = true;
     LayoutAnimation.easeInEaseOut();
     const { localID } = this.props.entryInfo;
     this.props.dispatchActionPromise(
       deleteEntryActionTypes,
       this.deleteAction(serverID),
       undefined,
       { localID, serverID },
     );
   }
 
   async deleteAction(serverID: ?string): Promise<?DeleteEntryResult> {
     if (serverID) {
       return await this.props.deleteEntry({
         entryID: serverID,
         prevText: this.props.entryInfo.text,
         calendarQuery: this.props.calendarQuery(),
       });
     } else if (this.creating) {
       this.needsDeleteAfterCreation = true;
     }
     return null;
   }
 
   onPressThreadName: () => void = () => {
     Keyboard.dismiss();
     this.props.navigateToThread({ threadInfo: this.props.threadInfo });
   };
 }
 
 const unboundStyles = {
   actionLinks: {
     flex: 1,
     flexDirection: 'row',
     justifyContent: 'space-between',
     marginTop: -5,
   },
   button: {
     padding: 5,
   },
   buttonContents: {
     flex: 1,
     flexDirection: 'row',
   },
   container: {
     backgroundColor: 'listBackground',
   },
   entry: {
     borderRadius: 8,
     margin: 5,
     overflow: 'hidden',
   },
   leftLinks: {
     flex: 1,
     flexDirection: 'row',
     justifyContent: 'flex-start',
     paddingHorizontal: 5,
   },
   leftLinksText: {
     fontSize: 12,
     fontWeight: 'bold',
     paddingLeft: 5,
   },
   pencilIcon: {
     lineHeight: 13,
     paddingTop: 1,
   },
   rightLinks: {
     flex: 1,
     flexDirection: 'row',
     justifyContent: 'flex-end',
     paddingHorizontal: 5,
   },
   rightLinksText: {
     fontSize: 12,
     fontWeight: 'bold',
   },
   text: {
     fontFamily: 'System',
     fontSize: 16,
   },
   textContainer: {
     position: 'absolute',
     top: 0,
     paddingBottom: 6,
     paddingLeft: 10,
     paddingRight: 10,
     paddingTop: 5,
     transform: (Platform.select({
       ios: [{ translateY: -1 / 3 }],
       default: [],
     }): $ReadOnlyArray<{ +translateY: number }>),
   },
   textInput: {
     fontFamily: 'System',
     fontSize: 16,
     left: ((Platform.OS === 'android' ? 9.8 : 10): number),
     margin: 0,
     padding: 0,
     position: 'absolute',
     right: 10,
     top: ((Platform.OS === 'android' ? 4.8 : 0.5): number),
   },
 };
 
 registerFetchKey(saveEntryActionTypes);
 registerFetchKey(deleteEntryActionTypes);
 const activeThreadPickerSelector = createIsForegroundSelector(
   ThreadPickerModalRouteName,
 );
 
 const Entry: React.ComponentType<BaseProps> = React.memo<BaseProps>(
   function ConnectedEntry(props: BaseProps) {
     const navContext = React.useContext(NavContext);
     const threadPickerActive = activeThreadPickerSelector(navContext);
 
     const calendarQuery = useSelector(state =>
       nonThreadCalendarQuery({
         redux: state,
         navContext,
       }),
     );
     const connection = useSelector(connectionSelector(ashoatKeyserverID));
     invariant(connection, 'keyserver missing from keyserverStore');
     const online = connection.status === 'connected';
     const styles = useStyles(unboundStyles);
 
     const navigateToThread = useNavigateToThread();
 
     const dispatch = useDispatch();
     const dispatchActionPromise = useDispatchActionPromise();
     const callCreateEntry = useCreateEntry();
     const callSaveEntry = useSaveEntry();
     const callDeleteEntry = useDeleteEntry();
 
     const { threadInfo: unresolvedThreadInfo, ...restProps } = props;
     const threadInfo = useResolvedThreadInfo(unresolvedThreadInfo);
 
     return (
       <InternalEntry
         {...restProps}
         threadPickerActive={threadPickerActive}
         calendarQuery={calendarQuery}
         online={online}
         styles={styles}
         navigateToThread={navigateToThread}
         dispatch={dispatch}
         dispatchActionPromise={dispatchActionPromise}
         createEntry={callCreateEntry}
         saveEntry={callSaveEntry}
         deleteEntry={callDeleteEntry}
         threadInfo={threadInfo}
       />
     );
   },
 );
 
 export { InternalEntry, Entry, dummyNodeForEntryHeightMeasurement };
diff --git a/native/chat/chat-context-provider.react.js b/native/chat/chat-context-provider.react.js
index e7ebef09a..e8703914a 100644
--- a/native/chat/chat-context-provider.react.js
+++ b/native/chat/chat-context-provider.react.js
@@ -1,173 +1,174 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import { ChatContext } from './chat-context.js';
 import type { SidebarAnimationType } from './chat-context.js';
 import ChatItemHeightMeasurer from './chat-item-height-measurer.react.js';
 import type { NativeChatMessageItem } from './message-data.react.js';
 import type { ChatMessageItemWithHeight } from '../types/chat-types.js';
 
 type Props = {
   +children: React.Node,
 };
 
 export type MeasurementTask = {
   +messages: $ReadOnlyArray<NativeChatMessageItem>,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +onMessagesMeasured: (
     messagesWithHeight: $ReadOnlyArray<ChatMessageItemWithHeight>,
     measuredHeights: $ReadOnlyMap<string, number>,
   ) => mixed,
   +measurerID: number,
   +initialMeasuredHeights: ?$ReadOnlyMap<string, number>,
 };
 
 function ChatContextProvider(props: Props): React.Node {
   const [measurements, setMeasurements] = React.useState<
     $ReadOnlyArray<MeasurementTask>,
   >([]);
   const nextMeasurerID = React.useRef(0);
   const measuredHeights = React.useRef<
     Map<number, $ReadOnlyMap<string, number>>,
   >(new Map());
 
   const measureMessages = React.useCallback(
     (
       messages: ?$ReadOnlyArray<NativeChatMessageItem>,
-      threadInfo: ?ThreadInfo,
+      threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
       onMessagesMeasured: ($ReadOnlyArray<ChatMessageItemWithHeight>) => mixed,
       measurerID: number,
     ) => {
       if (!threadInfo) {
         // When threadInfo is not present, we can't measure the messages: we can
         // determine the height, but we can't merge the result as it requires
         // threadInfo to be present.
         return;
       }
 
       if (!messages) {
         return;
       }
 
       const measureCallback = (
         messagesWithHeight: $ReadOnlyArray<ChatMessageItemWithHeight>,
         newMeasuredHeights: $ReadOnlyMap<string, number>,
       ) => {
         measuredHeights.current.set(measurerID, newMeasuredHeights);
         onMessagesMeasured(messagesWithHeight);
       };
 
       let initialMeasuredHeights = null;
       const isMeasurementPresent = measuredHeights.current.has(measurerID);
       if (!isMeasurementPresent) {
         const sourceMeasurerID = measurements.find(
           measurement => measurement.threadInfo.id === threadInfo.id,
         )?.measurerID;
         initialMeasuredHeights = sourceMeasurerID
           ? measuredHeights.current.get(sourceMeasurerID)
           : null;
       }
 
       const newMeasurement = {
         messages,
         threadInfo,
         onMessagesMeasured: measureCallback,
         measurerID,
         initialMeasuredHeights,
       };
       setMeasurements(prevMeasurements => {
         const withoutCurrentMeasurement = prevMeasurements.filter(
           measurement => measurement.measurerID !== measurerID,
         );
         return [...withoutCurrentMeasurement, newMeasurement];
       });
     },
     [measurements],
   );
 
   const registerMeasurer = React.useCallback(() => {
     const measurerID = nextMeasurerID.current++;
     return {
       measure: (
         messages: ?$ReadOnlyArray<NativeChatMessageItem>,
-        threadInfo: ?ThreadInfo,
+        threadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
         onMessagesMeasured: (
           $ReadOnlyArray<ChatMessageItemWithHeight>,
         ) => mixed,
       ) =>
         measureMessages(messages, threadInfo, onMessagesMeasured, measurerID),
       unregister: () => {
         setMeasurements(prevMeasurements =>
           prevMeasurements.filter(
             measurement => measurement.measurerID !== measurerID,
           ),
         );
         measuredHeights.current.delete(measurerID);
       },
     };
   }, [measureMessages]);
 
   const [
     currentTransitionSidebarSourceID,
     setCurrentTransitionSidebarSourceID,
   ] = React.useState<?string>(null);
 
   const chatInputBarHeights = React.useRef<Map<string, number>>(new Map());
   const setChatInputBarHeight = React.useCallback(
     (threadID: string, height: number) =>
       chatInputBarHeights.current.set(threadID, height),
     [],
   );
   const deleteChatInputBarHeight = React.useCallback(
     (threadID: string) => chatInputBarHeights.current.delete(threadID),
     [],
   );
 
   const [sidebarAnimationType, setSidebarAnimationType] =
     React.useState<SidebarAnimationType>('move_source_message');
 
   const contextValue = React.useMemo(
     () => ({
       registerMeasurer,
       currentTransitionSidebarSourceID,
       setCurrentTransitionSidebarSourceID,
       setChatInputBarHeight,
       deleteChatInputBarHeight,
       chatInputBarHeights: chatInputBarHeights.current,
       sidebarAnimationType,
       setSidebarAnimationType,
     }),
     [
       currentTransitionSidebarSourceID,
       deleteChatInputBarHeight,
       registerMeasurer,
       setChatInputBarHeight,
       sidebarAnimationType,
     ],
   );
 
   const heightMeasurers = React.useMemo(
     () =>
       measurements.map(measurement => (
         <ChatItemHeightMeasurer
           key={measurement.measurerID}
           measurement={measurement}
         />
       )),
     [measurements],
   );
   return (
     <ChatContext.Provider value={contextValue}>
       {heightMeasurers}
       {props.children}
     </ChatContext.Provider>
   );
 }
 
 const MemoizedChatContextProvider: React.ComponentType<Props> =
   React.memo<Props>(ChatContextProvider);
 
 export default MemoizedChatContextProvider;
diff --git a/native/chat/chat-context.js b/native/chat/chat-context.js
index a23baa972..cb1da7ce1 100644
--- a/native/chat/chat-context.js
+++ b/native/chat/chat-context.js
@@ -1,53 +1,54 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import type { SetState } from 'lib/types/hook-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import type { NativeChatMessageItem } from './message-data.react.js';
 import type { ChatMessageItemWithHeight } from '../types/chat-types.js';
 
 export type MessagesMeasurer = (
   ?$ReadOnlyArray<NativeChatMessageItem>,
-  ?ThreadInfo,
+  ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ($ReadOnlyArray<ChatMessageItemWithHeight>) => mixed,
 ) => void;
 
 export type RegisteredMeasurer = {
   +measure: MessagesMeasurer,
   +unregister: () => void,
 };
 
 export type SidebarAnimationType =
   | 'fade_source_message'
   | 'move_source_message';
 export type ChatContextType = {
   +registerMeasurer: () => RegisteredMeasurer,
   +currentTransitionSidebarSourceID: ?string,
   +setCurrentTransitionSidebarSourceID: SetState<?string>,
   +setChatInputBarHeight: (threadID: string, height: number) => mixed,
   +deleteChatInputBarHeight: (threadID: string) => mixed,
   +chatInputBarHeights: $ReadOnlyMap<string, number>,
   +sidebarAnimationType: SidebarAnimationType,
   +setSidebarAnimationType: (animationType: SidebarAnimationType) => mixed,
 };
 const ChatContext: React.Context<?ChatContextType> = React.createContext(null);
 
 function useHeightMeasurer(): MessagesMeasurer {
   const chatContext = React.useContext(ChatContext);
   invariant(chatContext, 'Chat context should be set');
 
   const measureRegistrationRef = React.useRef();
   if (!measureRegistrationRef.current) {
     measureRegistrationRef.current = chatContext.registerMeasurer();
   }
   const measureRegistration = measureRegistrationRef.current;
   React.useEffect(() => {
     return measureRegistration.unregister;
   }, [measureRegistration]);
   return measureRegistration.measure;
 }
 
 export { ChatContext, useHeightMeasurer };
diff --git a/native/chat/chat-input-bar.react.js b/native/chat/chat-input-bar.react.js
index a8a9aa2ba..2e118fea1 100644
--- a/native/chat/chat-input-bar.react.js
+++ b/native/chat/chat-input-bar.react.js
@@ -1,1442 +1,1448 @@
 // @flow
 
 import Icon from '@expo/vector-icons/Ionicons.js';
 import invariant from 'invariant';
 import _throttle from 'lodash/throttle.js';
 import * as React from 'react';
 import {
   View,
   TextInput,
   TouchableOpacity,
   Platform,
   Text,
   ActivityIndicator,
   TouchableWithoutFeedback,
   NativeAppEventEmitter,
 } from 'react-native';
 import { TextInputKeyboardMangerIOS } from 'react-native-keyboard-input';
 import Animated, {
   EasingNode,
   FadeInDown,
   FadeOutDown,
 } from 'react-native-reanimated';
 import { useDispatch } from 'react-redux';
 
 import {
   moveDraftActionType,
   updateDraftActionType,
 } from 'lib/actions/draft-actions.js';
 import {
   joinThreadActionTypes,
   useJoinThread,
   newThreadActionTypes,
 } from 'lib/actions/thread-actions.js';
 import {
   useChatMentionContext,
   useThreadChatMentionCandidates,
 } from 'lib/hooks/chat-mention-hooks.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import { userStoreMentionSearchIndex } from 'lib/selectors/user-selectors.js';
 import { colorIsDark } from 'lib/shared/color-utils.js';
 import { useEditMessage } from 'lib/shared/edit-messages-utils.js';
 import {
   getMentionTypeaheadUserSuggestions,
   getMentionTypeaheadChatSuggestions,
   getTypeaheadRegexMatches,
   type Selection,
   getUserMentionsCandidates,
 } from 'lib/shared/mention-utils.js';
 import {
   useNextLocalID,
   trimMessage,
   useMessagePreview,
   messageKey,
   type MessagePreviewResult,
 } from 'lib/shared/message-utils.js';
 import SentencePrefixSearchIndex from 'lib/shared/sentence-prefix-search-index.js';
 import {
   threadHasPermission,
   viewerIsMember,
   threadFrozenDueToViewerBlock,
   threadActualMembers,
   checkIfDefaultMembersAreVoiced,
   draftKeyFromThreadID,
 } from 'lib/shared/thread-utils.js';
 import type { CalendarQuery } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
 import type { PhotoPaste } from 'lib/types/media-types.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import type {
   SendEditMessageResponse,
   MessageInfo,
 } from 'lib/types/message-types.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import type {
   ThreadInfo,
   ClientThreadJoinRequest,
   ThreadJoinPayload,
   RelativeMemberInfo,
   ChatMentionCandidates,
 } from 'lib/types/thread-types.js';
 import { type UserInfos } from 'lib/types/user-types.js';
 import {
   type DispatchActionPromise,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 
 import { ChatContext } from './chat-context.js';
 import type { ChatNavigationProp } from './chat.react.js';
 import {
   MessageEditingContext,
   type MessageEditingContextType,
 } from './message-editing-context.react.js';
 import type { RemoveEditMode } from './message-list-types.js';
 import TypeaheadTooltip from './typeahead-tooltip.react.js';
 import MentionTypeaheadTooltipButton from '../chat/mention-typeahead-tooltip-button.react.js';
 import Button from '../components/button.react.js';
 // eslint-disable-next-line import/extensions
 import ClearableTextInput from '../components/clearable-text-input.react';
 import type { SyncedSelectionData } from '../components/selectable-text-input.js';
 // eslint-disable-next-line import/extensions
 import SelectableTextInput from '../components/selectable-text-input.react';
 import SingleLine from '../components/single-line.react.js';
 import SWMansionIcon from '../components/swmansion-icon.react.js';
 import {
   type InputState,
   InputStateContext,
   type EditInputBarMessageParameters,
 } from '../input/input-state.js';
 import KeyboardInputHost from '../keyboard/keyboard-input-host.react.js';
 import {
   type KeyboardState,
   KeyboardContext,
 } from '../keyboard/keyboard-state.js';
 import { getKeyboardHeight } from '../keyboard/keyboard.js';
 import { getDefaultTextMessageRules } from '../markdown/rules.react.js';
 import {
   nonThreadCalendarQuery,
   activeThreadSelector,
 } from '../navigation/nav-selectors.js';
 import { NavContext } from '../navigation/navigation-context.js';
 import { OverlayContext } from '../navigation/overlay-context.js';
 import type { OverlayContextType } from '../navigation/overlay-context.js';
 import {
   type NavigationRoute,
   ChatCameraModalRouteName,
   ImagePasteModalRouteName,
 } from '../navigation/route-names.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { type Colors, useStyles, useColors } from '../themes/colors.js';
 import type { LayoutEvent } from '../types/react-native.js';
 import { type AnimatedViewStyle, AnimatedView } from '../types/styles.js';
 import Alert from '../utils/alert.js';
 import { runTiming } from '../utils/animation-utils.js';
 import { exitEditAlert } from '../utils/edit-messages-utils.js';
 import {
   nativeMentionTypeaheadRegex,
   mentionTypeaheadTooltipActions,
 } from '../utils/typeahead-utils.js';
 
 /* eslint-disable import/no-named-as-default-member */
 const { Value, Clock, block, set, cond, neq, sub, interpolateNode, stopClock } =
   Animated;
 /* eslint-enable import/no-named-as-default-member */
 
 const expandoButtonsAnimationConfig = {
   duration: 150,
   easing: EasingNode.inOut(EasingNode.ease),
 };
 const sendButtonAnimationConfig = {
   duration: 150,
   easing: EasingNode.inOut(EasingNode.ease),
 };
 
 type BaseProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 type Props = {
   ...BaseProps,
   +viewerID: ?string,
   +draft: string,
   +joinThreadLoadingStatus: LoadingStatus,
   +threadCreationInProgress: boolean,
   +calendarQuery: () => CalendarQuery,
   +nextLocalID: string,
   +userInfos: UserInfos,
   +colors: Colors,
   +styles: typeof unboundStyles,
   +onInputBarLayout?: (event: LayoutEvent) => mixed,
   +openCamera: () => mixed,
   +isActive: boolean,
   +keyboardState: ?KeyboardState,
   +dispatch: Dispatch,
   +dispatchActionPromise: DispatchActionPromise,
   +joinThread: (request: ClientThreadJoinRequest) => Promise<ThreadJoinPayload>,
   +inputState: ?InputState,
   +userSearchIndex: SentencePrefixSearchIndex,
-  +userMentionsCandidates: $ReadOnlyArray<RelativeMemberInfo>,
+  +userMentionsCandidates: $ReadOnlyArray<
+    RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  >,
   +chatMentionSearchIndex: SentencePrefixSearchIndex,
   +chatMentionCandidates: ChatMentionCandidates,
   +parentThreadInfo: ?ThreadInfo,
   +editedMessagePreview: ?MessagePreviewResult,
   +editedMessageInfo: ?MessageInfo,
   +editMessage: (
     messageID: string,
     text: string,
   ) => Promise<SendEditMessageResponse>,
   +navigation: ?ChatNavigationProp<'MessageList'>,
   +overlayContext: ?OverlayContextType,
   +messageEditingContext: ?MessageEditingContextType,
 };
 type State = {
   +text: string,
   +textEdited: boolean,
   +buttonsExpanded: boolean,
   +selectionState: SyncedSelectionData,
   +isExitingDuringEditMode: boolean,
 };
 class ChatInputBar extends React.PureComponent<Props, State> {
   textInput: ?React.ElementRef<typeof TextInput>;
   clearableTextInput: ?ClearableTextInput;
   selectableTextInput: ?React.ElementRef<typeof SelectableTextInput>;
 
   expandoButtonsOpen: Value;
   targetExpandoButtonsOpen: Value;
   expandoButtonsStyle: AnimatedViewStyle;
   cameraRollIconStyle: AnimatedViewStyle;
   cameraIconStyle: AnimatedViewStyle;
   expandIconStyle: AnimatedViewStyle;
 
   sendButtonContainerOpen: Value;
   targetSendButtonContainerOpen: Value;
   sendButtonContainerStyle: AnimatedViewStyle;
 
   clearBeforeRemoveListener: () => void;
   clearFocusListener: () => void;
   clearBlurListener: () => void;
 
   constructor(props: Props) {
     super(props);
     this.state = {
       text: props.draft,
       textEdited: false,
       buttonsExpanded: true,
       selectionState: { text: props.draft, selection: { start: 0, end: 0 } },
       isExitingDuringEditMode: false,
     };
 
     this.setUpActionIconAnimations();
     this.setUpSendIconAnimations();
   }
 
   setUpActionIconAnimations() {
     this.expandoButtonsOpen = new Value(1);
     this.targetExpandoButtonsOpen = new Value(1);
     const prevTargetExpandoButtonsOpen = new Value(1);
     const expandoButtonClock = new Clock();
     const expandoButtonsOpen = block([
       cond(neq(this.targetExpandoButtonsOpen, prevTargetExpandoButtonsOpen), [
         stopClock(expandoButtonClock),
         set(prevTargetExpandoButtonsOpen, this.targetExpandoButtonsOpen),
       ]),
       cond(
         neq(this.expandoButtonsOpen, this.targetExpandoButtonsOpen),
         set(
           this.expandoButtonsOpen,
           runTiming(
             expandoButtonClock,
             this.expandoButtonsOpen,
             this.targetExpandoButtonsOpen,
             true,
             expandoButtonsAnimationConfig,
           ),
         ),
       ),
       this.expandoButtonsOpen,
     ]);
 
     this.cameraRollIconStyle = {
       ...unboundStyles.cameraRollIcon,
       opacity: expandoButtonsOpen,
     };
     this.cameraIconStyle = {
       ...unboundStyles.cameraIcon,
       opacity: expandoButtonsOpen,
     };
 
     const expandoButtonsWidth = interpolateNode(expandoButtonsOpen, {
       inputRange: [0, 1],
       outputRange: [26, 66],
     });
     this.expandoButtonsStyle = {
       ...unboundStyles.expandoButtons,
       width: expandoButtonsWidth,
     };
 
     const expandOpacity = sub(1, expandoButtonsOpen);
     this.expandIconStyle = {
       ...unboundStyles.expandIcon,
       opacity: expandOpacity,
     };
   }
 
   setUpSendIconAnimations() {
     const initialSendButtonContainerOpen = trimMessage(this.props.draft)
       ? 1
       : 0;
     this.sendButtonContainerOpen = new Value(initialSendButtonContainerOpen);
     this.targetSendButtonContainerOpen = new Value(
       initialSendButtonContainerOpen,
     );
     const prevTargetSendButtonContainerOpen = new Value(
       initialSendButtonContainerOpen,
     );
     const sendButtonClock = new Clock();
     const sendButtonContainerOpen = block([
       cond(
         neq(
           this.targetSendButtonContainerOpen,
           prevTargetSendButtonContainerOpen,
         ),
         [
           stopClock(sendButtonClock),
           set(
             prevTargetSendButtonContainerOpen,
             this.targetSendButtonContainerOpen,
           ),
         ],
       ),
       cond(
         neq(this.sendButtonContainerOpen, this.targetSendButtonContainerOpen),
         set(
           this.sendButtonContainerOpen,
           runTiming(
             sendButtonClock,
             this.sendButtonContainerOpen,
             this.targetSendButtonContainerOpen,
             true,
             sendButtonAnimationConfig,
           ),
         ),
       ),
       this.sendButtonContainerOpen,
     ]);
 
     const sendButtonContainerWidth = interpolateNode(sendButtonContainerOpen, {
       inputRange: [0, 1],
       outputRange: [4, 38],
     });
     this.sendButtonContainerStyle = { width: sendButtonContainerWidth };
   }
 
   static mediaGalleryOpen(props: Props) {
     const { keyboardState } = props;
     return !!(keyboardState && keyboardState.mediaGalleryOpen);
   }
 
   static systemKeyboardShowing(props: Props) {
     const { keyboardState } = props;
     return !!(keyboardState && keyboardState.systemKeyboardShowing);
   }
 
   get systemKeyboardShowing() {
     return ChatInputBar.systemKeyboardShowing(this.props);
   }
 
   immediatelyShowSendButton() {
     this.sendButtonContainerOpen.setValue(1);
     this.targetSendButtonContainerOpen.setValue(1);
   }
 
   updateSendButton(currentText: string) {
     if (this.shouldShowTextInput) {
       this.targetSendButtonContainerOpen.setValue(currentText === '' ? 0 : 1);
     } else {
       this.setUpSendIconAnimations();
     }
   }
 
   componentDidMount() {
     const { isActive, navigation } = this.props;
     if (isActive) {
       this.addEditInputMessageListener();
     }
     if (!navigation) {
       return;
     }
     this.clearBeforeRemoveListener = navigation.addListener(
       'beforeRemove',
       this.onNavigationBeforeRemove,
     );
     this.clearFocusListener = navigation.addListener(
       'focus',
       this.onNavigationFocus,
     );
     this.clearBlurListener = navigation.addListener(
       'blur',
       this.onNavigationBlur,
     );
   }
 
   componentWillUnmount() {
     if (this.props.isActive) {
       this.removeEditInputMessageListener();
     }
     if (this.clearBeforeRemoveListener) {
       this.clearBeforeRemoveListener();
     }
     if (this.clearFocusListener) {
       this.clearFocusListener();
     }
     if (this.clearBlurListener) {
       this.clearBlurListener();
     }
   }
 
   componentDidUpdate(prevProps: Props, prevState: State) {
     if (
       this.state.textEdited &&
       this.state.text &&
       this.props.threadInfo.id !== prevProps.threadInfo.id
     ) {
       this.props.dispatch({
         type: moveDraftActionType,
         payload: {
           oldKey: draftKeyFromThreadID(prevProps.threadInfo.id),
           newKey: draftKeyFromThreadID(this.props.threadInfo.id),
         },
       });
     } else if (!this.state.textEdited && this.props.draft !== prevProps.draft) {
       this.setState({ text: this.props.draft });
     }
     if (this.props.isActive && !prevProps.isActive) {
       this.addEditInputMessageListener();
     } else if (!this.props.isActive && prevProps.isActive) {
       this.removeEditInputMessageListener();
     }
 
     const currentText = trimMessage(this.state.text);
     const prevText = trimMessage(prevState.text);
 
     if (
       (currentText === '' && prevText !== '') ||
       (currentText !== '' && prevText === '')
     ) {
       this.updateSendButton(currentText);
     }
 
     const systemKeyboardIsShowing = ChatInputBar.systemKeyboardShowing(
       this.props,
     );
     const systemKeyboardWasShowing =
       ChatInputBar.systemKeyboardShowing(prevProps);
     if (systemKeyboardIsShowing && !systemKeyboardWasShowing) {
       this.hideButtons();
     } else if (!systemKeyboardIsShowing && systemKeyboardWasShowing) {
       this.expandButtons();
     }
 
     const imageGalleryIsOpen = ChatInputBar.mediaGalleryOpen(this.props);
     const imageGalleryWasOpen = ChatInputBar.mediaGalleryOpen(prevProps);
     if (!imageGalleryIsOpen && imageGalleryWasOpen) {
       this.hideButtons();
     } else if (imageGalleryIsOpen && !imageGalleryWasOpen) {
       this.expandButtons();
       this.setIOSKeyboardHeight();
     }
 
     if (
       this.props.messageEditingContext?.editState.editedMessage &&
       !prevProps.messageEditingContext?.editState.editedMessage
     ) {
       this.blockNavigation();
     }
   }
 
   addEditInputMessageListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in addEditInputMessageListener',
     );
     this.props.inputState.addEditInputMessageListener(this.focusAndUpdateText);
   }
 
   removeEditInputMessageListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in removeEditInputMessageListener',
     );
     this.props.inputState.removeEditInputMessageListener(
       this.focusAndUpdateText,
     );
   }
 
   setIOSKeyboardHeight() {
     if (Platform.OS !== 'ios') {
       return;
     }
     const { textInput } = this;
     if (!textInput) {
       return;
     }
     const keyboardHeight = getKeyboardHeight();
     if (keyboardHeight === null || keyboardHeight === undefined) {
       return;
     }
     TextInputKeyboardMangerIOS.setKeyboardHeight(textInput, keyboardHeight);
   }
 
   get shouldShowTextInput(): boolean {
     if (threadHasPermission(this.props.threadInfo, threadPermissions.VOICED)) {
       return true;
     }
     // If the thread is created by somebody else while the viewer is attempting
     // to create it, the threadInfo might be modified in-place
     // and won't list the viewer as a member,
     // which will end up hiding the input.
     // In this case, we will assume that our creation action
     // will get translated into a join, and as long
     // as members are voiced, we can show the input.
     if (!this.props.threadCreationInProgress) {
       return false;
     }
     return checkIfDefaultMembersAreVoiced(this.props.threadInfo);
   }
 
   render() {
     const isMember = viewerIsMember(this.props.threadInfo);
     const canJoin = threadHasPermission(
       this.props.threadInfo,
       threadPermissions.JOIN_THREAD,
     );
     let joinButton = null;
     const threadColor = `#${this.props.threadInfo.color}`;
     const isEditMode = this.isEditMode();
     if (!isMember && canJoin && !this.props.threadCreationInProgress) {
       let buttonContent;
       if (this.props.joinThreadLoadingStatus === 'loading') {
         buttonContent = (
           <ActivityIndicator
             size="small"
             color="white"
             style={this.props.styles.joinThreadLoadingIndicator}
           />
         );
       } else {
         const textStyle = colorIsDark(this.props.threadInfo.color)
           ? this.props.styles.joinButtonTextLight
           : this.props.styles.joinButtonTextDark;
         buttonContent = (
           <View style={this.props.styles.joinButtonContent}>
             <SWMansionIcon name="plus" style={textStyle} />
             <Text style={textStyle}>Join Chat</Text>
           </View>
         );
       }
       joinButton = (
         <View style={this.props.styles.joinButtonContainer}>
           <Button
             onPress={this.onPressJoin}
             iosActiveOpacity={0.85}
             style={[
               this.props.styles.joinButton,
               { backgroundColor: threadColor },
             ]}
           >
             {buttonContent}
           </Button>
         </View>
       );
     }
 
     const typeaheadRegexMatches = getTypeaheadRegexMatches(
       this.state.selectionState.text,
       this.state.selectionState.selection,
       nativeMentionTypeaheadRegex,
     );
 
     let typeaheadTooltip = null;
 
     if (typeaheadRegexMatches && !isEditMode) {
       const typeaheadMatchedStrings = {
         textBeforeAtSymbol: typeaheadRegexMatches[1] ?? '',
         query: typeaheadRegexMatches[4] ?? '',
       };
 
       const suggestedUsers = getMentionTypeaheadUserSuggestions(
         this.props.userSearchIndex,
         this.props.userMentionsCandidates,
         this.props.viewerID,
         typeaheadMatchedStrings.query,
       );
       const suggestedChats = getMentionTypeaheadChatSuggestions(
         this.props.chatMentionSearchIndex,
         this.props.chatMentionCandidates,
         typeaheadMatchedStrings.query,
       );
       const suggestions = [...suggestedUsers, ...suggestedChats];
 
       if (suggestions.length > 0) {
         typeaheadTooltip = (
           <TypeaheadTooltip
             text={this.state.text}
             matchedStrings={typeaheadMatchedStrings}
             suggestions={suggestions}
             focusAndUpdateTextAndSelection={this.focusAndUpdateTextAndSelection}
             typeaheadTooltipActionsGetter={mentionTypeaheadTooltipActions}
             TypeaheadTooltipButtonComponent={MentionTypeaheadTooltipButton}
           />
         );
       }
     }
 
     let content;
     const defaultMembersAreVoiced = checkIfDefaultMembersAreVoiced(
       this.props.threadInfo,
     );
     if (this.shouldShowTextInput) {
       content = this.renderInput();
     } else if (
       threadFrozenDueToViewerBlock(
         this.props.threadInfo,
         this.props.viewerID,
         this.props.userInfos,
       ) &&
       threadActualMembers(this.props.threadInfo.members).length === 2
     ) {
       content = (
         <Text style={this.props.styles.explanation}>
           You can&rsquo;t send messages to a user that you&rsquo;ve blocked.
         </Text>
       );
     } else if (isMember) {
       content = (
         <Text style={this.props.styles.explanation}>
           You don&rsquo;t have permission to send messages.
         </Text>
       );
     } else if (defaultMembersAreVoiced && canJoin) {
       content = null;
     } else {
       content = (
         <Text style={this.props.styles.explanation}>
           You don&rsquo;t have permission to send messages.
         </Text>
       );
     }
 
     const keyboardInputHost =
       Platform.OS === 'android' ? null : (
         <KeyboardInputHost textInputRef={this.textInput} />
       );
 
     let editedMessage;
     if (isEditMode && this.props.editedMessagePreview) {
       const { message } = this.props.editedMessagePreview;
       editedMessage = (
         <AnimatedView
           style={this.props.styles.editView}
           entering={FadeInDown}
           exiting={FadeOutDown}
         >
           <View style={this.props.styles.editViewContent}>
             <TouchableOpacity
               onPress={this.scrollToEditedMessage}
               activeOpacity={0.4}
             >
               <Text
                 style={[{ color: threadColor }, this.props.styles.editingLabel]}
               >
                 Editing message
               </Text>
               <SingleLine style={this.props.styles.editingMessagePreview}>
                 {message.text}
               </SingleLine>
             </TouchableOpacity>
           </View>
           <SWMansionIcon
             style={this.props.styles.exitEditButton}
             name="cross"
             size={22}
             color={threadColor}
             onPress={this.onPressExitEditMode}
           />
         </AnimatedView>
       );
     }
 
     return (
       <AnimatedView
         style={this.props.styles.container}
         onLayout={this.props.onInputBarLayout}
       >
         {typeaheadTooltip}
         {joinButton}
         {editedMessage}
         {content}
         {keyboardInputHost}
       </AnimatedView>
     );
   }
 
   renderInput() {
     const expandoButton = (
       <TouchableOpacity
         onPress={this.expandButtons}
         activeOpacity={0.4}
         style={this.props.styles.expandButton}
       >
         <AnimatedView style={this.expandIconStyle}>
           <SWMansionIcon
             name="chevron-right"
             size={22}
             color={`#${this.props.threadInfo.color}`}
           />
         </AnimatedView>
       </TouchableOpacity>
     );
     const threadColor = `#${this.props.threadInfo.color}`;
     const expandoButtonsViewStyle = [this.props.styles.innerExpandoButtons];
     if (this.isEditMode()) {
       expandoButtonsViewStyle.push({ display: 'none' });
     }
     return (
       <TouchableWithoutFeedback onPress={this.dismissKeyboard}>
         <View style={this.props.styles.inputContainer}>
           <AnimatedView style={this.expandoButtonsStyle}>
             <View style={expandoButtonsViewStyle}>
               {this.state.buttonsExpanded ? expandoButton : null}
               <TouchableOpacity
                 onPress={this.showMediaGallery}
                 activeOpacity={0.4}
               >
                 <AnimatedView style={this.cameraRollIconStyle}>
                   <SWMansionIcon
                     name="image-1"
                     size={28}
                     color={`#${this.props.threadInfo.color}`}
                   />
                 </AnimatedView>
               </TouchableOpacity>
               <TouchableOpacity
                 onPress={this.props.openCamera}
                 activeOpacity={0.4}
                 disabled={!this.state.buttonsExpanded}
               >
                 <AnimatedView style={this.cameraIconStyle}>
                   <SWMansionIcon
                     name="camera"
                     size={28}
                     color={`#${this.props.threadInfo.color}`}
                   />
                 </AnimatedView>
               </TouchableOpacity>
               {this.state.buttonsExpanded ? null : expandoButton}
             </View>
           </AnimatedView>
           <SelectableTextInput
             allowImagePasteForThreadID={this.props.threadInfo.id}
             value={this.state.text}
             onChangeText={this.updateText}
             selection={this.state.selectionState.selection}
             onUpdateSyncedSelectionData={this.updateSelectionState}
             placeholder="Send a message..."
             placeholderTextColor={this.props.colors.listInputButton}
             multiline={true}
             style={this.props.styles.textInput}
             textInputRef={this.textInputRef}
             clearableTextInputRef={this.clearableTextInputRef}
             ref={this.selectableTextInputRef}
             selectionColor={`#${this.props.threadInfo.color}`}
           />
           <AnimatedView style={this.sendButtonContainerStyle}>
             <TouchableOpacity
               onPress={this.onSend}
               activeOpacity={0.4}
               style={this.props.styles.sendButton}
               disabled={trimMessage(this.state.text) === ''}
             >
               <Icon
                 name="md-send"
                 size={25}
                 style={this.props.styles.sendIcon}
                 color={threadColor}
               />
             </TouchableOpacity>
           </AnimatedView>
         </View>
       </TouchableWithoutFeedback>
     );
   }
 
   textInputRef = (textInput: ?React.ElementRef<typeof TextInput>) => {
     this.textInput = textInput;
   };
 
   clearableTextInputRef = (clearableTextInput: ?ClearableTextInput) => {
     this.clearableTextInput = clearableTextInput;
   };
 
   selectableTextInputRef = (
     selectableTextInput: ?React.ElementRef<typeof SelectableTextInput>,
   ) => {
     this.selectableTextInput = selectableTextInput;
   };
 
   updateText = (text: string) => {
     if (this.state.isExitingDuringEditMode) {
       return;
     }
     this.setState({ text, textEdited: true });
     this.props.messageEditingContext?.setEditedMessageChanged(
       this.isMessageEdited(text),
     );
     if (this.isEditMode()) {
       return;
     }
     this.saveDraft(text);
   };
 
   updateSelectionState: (data: SyncedSelectionData) => void = data => {
     this.setState({ selectionState: data });
   };
 
   saveDraft = _throttle(text => {
     this.props.dispatch({
       type: updateDraftActionType,
       payload: {
         key: draftKeyFromThreadID(this.props.threadInfo.id),
         text,
       },
     });
   }, 400);
 
   focusAndUpdateTextAndSelection = (text: string, selection: Selection) => {
     this.selectableTextInput?.prepareForSelectionMutation(text, selection);
     this.setState({
       text,
       textEdited: true,
       selectionState: { text, selection },
     });
     this.saveDraft(text);
 
     this.focusAndUpdateButtonsVisibility();
   };
 
   focusAndUpdateText = (params: EditInputBarMessageParameters) => {
     const { message: text, mode } = params;
     const currentText = this.state.text;
     if (mode === 'replace') {
       this.updateText(text);
     } else if (!currentText.startsWith(text)) {
       const prependedText = text.concat(currentText);
       this.updateText(prependedText);
     }
 
     this.focusAndUpdateButtonsVisibility();
   };
 
   focusAndUpdateButtonsVisibility = () => {
     const { textInput } = this;
     if (!textInput) {
       return;
     }
 
     this.immediatelyShowSendButton();
     this.immediatelyHideButtons();
     textInput.focus();
   };
 
   onSend = async () => {
     if (!trimMessage(this.state.text)) {
       return;
     }
 
     const editedMessage = this.getEditedMessage();
     if (editedMessage && editedMessage.id) {
       this.editMessage(editedMessage.id, this.state.text);
       return;
     }
 
     this.updateSendButton('');
 
     const { clearableTextInput } = this;
     invariant(
       clearableTextInput,
       'clearableTextInput should be sent in onSend',
     );
     let text = await clearableTextInput.getValueAndReset();
     text = trimMessage(text);
     if (!text) {
       return;
     }
 
     const localID = this.props.nextLocalID;
     const creatorID = this.props.viewerID;
     invariant(creatorID, 'should have viewer ID in order to send a message');
     invariant(
       this.props.inputState,
       'inputState should be set in ChatInputBar.onSend',
     );
 
     this.props.inputState.sendTextMessage(
       {
         type: messageTypes.TEXT,
         localID,
         threadID: this.props.threadInfo.id,
         text,
         creatorID,
         time: Date.now(),
       },
       this.props.threadInfo,
       this.props.parentThreadInfo,
     );
   };
 
   isEditMode = () => {
     const editState = this.props.messageEditingContext?.editState;
     const isThisThread =
       editState?.editedMessage?.threadID === this.props.threadInfo.id;
     return editState && editState.editedMessage !== null && isThisThread;
   };
 
   isMessageEdited = newText => {
     let text = newText ?? this.state.text;
     text = trimMessage(text);
     const originalText = this.props.editedMessageInfo?.text;
     return text !== originalText;
   };
 
   unblockNavigation = () => {
     const { navigation } = this.props;
     if (!navigation) {
       return;
     }
     navigation.setParams({ removeEditMode: null });
   };
 
   removeEditMode: RemoveEditMode = action => {
     const { navigation } = this.props;
     if (!navigation || this.state.isExitingDuringEditMode) {
       return 'ignore_action';
     }
     if (!this.isMessageEdited()) {
       this.unblockNavigation();
       return 'reduce_action';
     }
     const unblockAndDispatch = () => {
       this.unblockNavigation();
       navigation.dispatch(action);
     };
     const onContinueEditing = () => {
       this.props.overlayContext?.resetScrollBlockingModalStatus();
     };
     exitEditAlert({
       onDiscard: unblockAndDispatch,
       onContinueEditing,
     });
     return 'ignore_action';
   };
 
   blockNavigation = () => {
     const { navigation } = this.props;
     if (!navigation || !navigation.isFocused()) {
       return;
     }
     navigation.setParams({
       removeEditMode: this.removeEditMode,
     });
   };
 
   editMessage = async (messageID: string, text: string) => {
     if (!this.isMessageEdited()) {
       this.exitEditMode();
       return;
     }
     text = trimMessage(text);
     try {
       await this.props.editMessage(messageID, text);
       this.exitEditMode();
     } catch (error) {
       Alert.alert(
         'Couldn’t edit the message',
         'Please try again later',
         [{ text: 'OK' }],
         {
           cancelable: true,
         },
       );
     }
   };
 
   getEditedMessage = () => {
     const editState = this.props.messageEditingContext?.editState;
     return editState?.editedMessage;
   };
 
   onPressExitEditMode = () => {
     if (!this.isMessageEdited()) {
       this.exitEditMode();
       return;
     }
     exitEditAlert({
       onDiscard: this.exitEditMode,
     });
   };
 
   scrollToEditedMessage = () => {
     const editedMessage = this.getEditedMessage();
     if (!editedMessage) {
       return;
     }
     const editedMessageKey = messageKey(editedMessage);
     this.props.inputState?.scrollToMessage(editedMessageKey);
   };
 
   exitEditMode = () => {
     this.props.messageEditingContext?.setEditedMessage(null, () => {
       this.unblockNavigation();
       this.updateText(this.props.draft);
       this.focusAndUpdateButtonsVisibility();
       this.updateSendButton(this.props.draft);
     });
   };
 
   onNavigationFocus = () => {
     this.setState({ isExitingDuringEditMode: false });
   };
 
   onNavigationBlur = () => {
     if (!this.isEditMode()) {
       return;
     }
     this.setState(
       { text: this.props.draft, isExitingDuringEditMode: true },
       this.exitEditMode,
     );
   };
 
   onNavigationBeforeRemove = e => {
     if (!this.isEditMode()) {
       return;
     }
     const { action } = e.data;
     e.preventDefault();
     const saveExit = () => {
       this.props.messageEditingContext?.setEditedMessage(null, () => {
         this.setState({ isExitingDuringEditMode: true }, () => {
           if (!this.props.navigation) {
             return;
           }
           this.props.navigation.dispatch(action);
         });
       });
     };
     if (!this.isMessageEdited()) {
       saveExit();
       return;
     }
     exitEditAlert({
       onDiscard: saveExit,
     });
   };
 
   onPressJoin = () => {
     this.props.dispatchActionPromise(joinThreadActionTypes, this.joinAction());
   };
 
   async joinAction() {
     const query = this.props.calendarQuery();
     return await this.props.joinThread({
       threadID: this.props.threadInfo.id,
       calendarQuery: {
         startDate: query.startDate,
         endDate: query.endDate,
         filters: [
           ...query.filters,
           { type: 'threads', threadIDs: [this.props.threadInfo.id] },
         ],
       },
     });
   }
 
   expandButtons = () => {
     if (this.state.buttonsExpanded || this.isEditMode()) {
       return;
     }
     this.targetExpandoButtonsOpen.setValue(1);
     this.setState({ buttonsExpanded: true });
   };
 
   hideButtons() {
     if (
       ChatInputBar.mediaGalleryOpen(this.props) ||
       !this.systemKeyboardShowing ||
       !this.state.buttonsExpanded
     ) {
       return;
     }
     this.targetExpandoButtonsOpen.setValue(0);
     this.setState({ buttonsExpanded: false });
   }
 
   immediatelyHideButtons() {
     this.expandoButtonsOpen.setValue(0);
     this.targetExpandoButtonsOpen.setValue(0);
     this.setState({ buttonsExpanded: false });
   }
 
   showMediaGallery = () => {
     const { keyboardState } = this.props;
     invariant(keyboardState, 'keyboardState should be initialized');
     keyboardState.showMediaGallery(this.props.threadInfo);
   };
 
   dismissKeyboard = () => {
     const { keyboardState } = this.props;
     keyboardState && keyboardState.dismissKeyboard();
   };
 }
 
 const unboundStyles = {
   cameraIcon: {
     paddingBottom: Platform.OS === 'android' ? 11 : 8,
     paddingRight: 5,
   },
   cameraRollIcon: {
     paddingBottom: Platform.OS === 'android' ? 11 : 8,
     paddingRight: 5,
   },
   container: {
     backgroundColor: 'listBackground',
     paddingLeft: Platform.OS === 'android' ? 10 : 5,
   },
   expandButton: {
     bottom: 0,
     position: 'absolute',
     right: 0,
   },
   expandIcon: {
     paddingBottom: Platform.OS === 'android' ? 13 : 11,
     paddingRight: 2,
   },
   expandoButtons: {
     alignSelf: 'flex-end',
   },
   explanation: {
     color: 'listBackgroundSecondaryLabel',
     paddingBottom: 4,
     paddingTop: 1,
     textAlign: 'center',
   },
   innerExpandoButtons: {
     alignItems: 'flex-end',
     alignSelf: 'flex-end',
     flexDirection: 'row',
   },
   inputContainer: {
     flexDirection: 'row',
   },
   joinButton: {
     borderRadius: 8,
     flex: 1,
     justifyContent: 'center',
     marginHorizontal: 12,
     marginVertical: 3,
   },
   joinButtonContainer: {
     flexDirection: 'row',
     height: 48,
     marginBottom: 8,
   },
   editView: {
     marginLeft: 20,
     marginRight: 20,
     padding: 10,
     flexDirection: 'row',
     justifyContent: 'space-between',
   },
   editViewContent: {
     flex: 1,
     paddingRight: 6,
   },
   exitEditButton: {
     marginTop: 6,
   },
   editingLabel: {
     paddingBottom: 4,
   },
   editingMessagePreview: {
     color: 'listForegroundLabel',
   },
   joinButtonContent: {
     flexDirection: 'row',
     justifyContent: 'center',
     alignItems: 'center',
   },
   joinButtonTextLight: {
     color: 'white',
     fontSize: 20,
     marginHorizontal: 4,
   },
   joinButtonTextDark: {
     color: 'black',
     fontSize: 20,
     marginHorizontal: 4,
   },
   joinThreadLoadingIndicator: {
     paddingVertical: 2,
   },
   sendButton: {
     position: 'absolute',
     bottom: 4,
     left: 0,
   },
   sendIcon: {
     paddingLeft: 9,
     paddingRight: 8,
     paddingVertical: 6,
   },
   textInput: {
     backgroundColor: 'listInputBackground',
     borderRadius: 8,
     color: 'listForegroundLabel',
     fontSize: 16,
     marginLeft: 4,
     marginRight: 4,
     marginTop: 6,
     marginBottom: 8,
     maxHeight: 110,
     paddingHorizontal: 10,
     paddingVertical: 5,
   },
 };
 
 const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
   joinThreadActionTypes,
 );
 const createThreadLoadingStatusSelector =
   createLoadingStatusSelector(newThreadActionTypes);
 
 type ConnectedChatInputBarBaseProps = {
   ...BaseProps,
   +onInputBarLayout?: (event: LayoutEvent) => mixed,
   +openCamera: () => mixed,
   +navigation?: ChatNavigationProp<'MessageList'>,
 };
 function ConnectedChatInputBarBase(props: ConnectedChatInputBarBaseProps) {
   const navContext = React.useContext(NavContext);
   const keyboardState = React.useContext(KeyboardContext);
   const inputState = React.useContext(InputStateContext);
   const overlayContext = React.useContext(OverlayContext);
 
   const viewerID = useSelector(
     state => state.currentUserInfo && state.currentUserInfo.id,
   );
   const draft = useSelector(
     state =>
       state.draftStore.drafts[draftKeyFromThreadID(props.threadInfo.id)] ?? '',
   );
   const joinThreadLoadingStatus = useSelector(joinThreadLoadingStatusSelector);
   const createThreadLoadingStatus = useSelector(
     createThreadLoadingStatusSelector,
   );
   const threadCreationInProgress = createThreadLoadingStatus === 'loading';
   const calendarQuery = useSelector(state =>
     nonThreadCalendarQuery({
       redux: state,
       navContext,
     }),
   );
   const nextLocalID = useNextLocalID();
   const userInfos = useSelector(state => state.userStore.userInfos);
 
   const styles = useStyles(unboundStyles);
   const colors = useColors();
 
   const isActive = React.useMemo(
     () => props.threadInfo.id === activeThreadSelector(navContext),
     [props.threadInfo.id, navContext],
   );
 
   const dispatch = useDispatch();
   const dispatchActionPromise = useDispatchActionPromise();
   const callJoinThread = useJoinThread();
 
   const userSearchIndex = useSelector(userStoreMentionSearchIndex);
 
   const { getChatMentionSearchIndex } = useChatMentionContext();
   const chatMentionSearchIndex = getChatMentionSearchIndex(props.threadInfo);
 
   const { parentThreadID } = props.threadInfo;
   const parentThreadInfo = useSelector(state =>
     parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
   );
 
   const userMentionsCandidates = getUserMentionsCandidates(
     props.threadInfo,
     parentThreadInfo,
   );
 
   const chatMentionCandidates = useThreadChatMentionCandidates(
     props.threadInfo,
   );
 
   const messageEditingContext = React.useContext(MessageEditingContext);
 
   const editedMessageInfo = messageEditingContext?.editState.editedMessage;
   const editedMessagePreview = useMessagePreview(
     editedMessageInfo,
     props.threadInfo,
     getDefaultTextMessageRules(chatMentionCandidates).simpleMarkdownRules,
   );
   const editMessage = useEditMessage();
 
   return (
     <ChatInputBar
       {...props}
       viewerID={viewerID}
       draft={draft}
       joinThreadLoadingStatus={joinThreadLoadingStatus}
       threadCreationInProgress={threadCreationInProgress}
       calendarQuery={calendarQuery}
       nextLocalID={nextLocalID}
       userInfos={userInfos}
       colors={colors}
       styles={styles}
       isActive={isActive}
       keyboardState={keyboardState}
       dispatch={dispatch}
       dispatchActionPromise={dispatchActionPromise}
       joinThread={callJoinThread}
       inputState={inputState}
       userSearchIndex={userSearchIndex}
       userMentionsCandidates={userMentionsCandidates}
       chatMentionSearchIndex={chatMentionSearchIndex}
       chatMentionCandidates={chatMentionCandidates}
       parentThreadInfo={parentThreadInfo}
       editedMessagePreview={editedMessagePreview}
       editedMessageInfo={editedMessageInfo}
       editMessage={editMessage}
       navigation={props.navigation}
       overlayContext={overlayContext}
       messageEditingContext={messageEditingContext}
     />
   );
 }
 
 type DummyChatInputBarProps = {
   ...BaseProps,
   +onHeightMeasured: (height: number) => mixed,
 };
 const noop = () => {};
 function DummyChatInputBar(props: DummyChatInputBarProps): React.Node {
   const { onHeightMeasured, ...restProps } = props;
   const onInputBarLayout = React.useCallback(
     (event: LayoutEvent) => {
       const { height } = event.nativeEvent.layout;
       onHeightMeasured(height);
     },
     [onHeightMeasured],
   );
   return (
     <View pointerEvents="none">
       <ConnectedChatInputBarBase
         {...restProps}
         onInputBarLayout={onInputBarLayout}
         openCamera={noop}
       />
     </View>
   );
 }
 
 type ChatInputBarProps = {
   ...BaseProps,
   +navigation: ChatNavigationProp<'MessageList'>,
   +route: NavigationRoute<'MessageList'>,
 };
 const ConnectedChatInputBar: React.ComponentType<ChatInputBarProps> =
   React.memo<ChatInputBarProps>(function ConnectedChatInputBar(
     props: ChatInputBarProps,
   ) {
     const { navigation, route, ...restProps } = props;
     const keyboardState = React.useContext(KeyboardContext);
 
     const { threadInfo } = props;
     const imagePastedCallback = React.useCallback(
       imagePastedEvent => {
         if (threadInfo.id !== imagePastedEvent.threadID) {
           return;
         }
         const pastedImage: PhotoPaste = {
           step: 'photo_paste',
           dimensions: {
             height: imagePastedEvent.height,
             width: imagePastedEvent.width,
           },
           filename: imagePastedEvent.fileName,
           uri: 'file://' + imagePastedEvent.filePath,
           selectTime: 0,
           sendTime: 0,
           retries: 0,
         };
         navigation.navigate<'ImagePasteModal'>({
           name: ImagePasteModalRouteName,
           params: {
             imagePasteStagingInfo: pastedImage,
             thread: threadInfo,
           },
         });
       },
       [navigation, threadInfo],
     );
 
     React.useEffect(() => {
       const imagePasteListener = NativeAppEventEmitter.addListener(
         'imagePasted',
         imagePastedCallback,
       );
       return () => imagePasteListener.remove();
     }, [imagePastedCallback]);
 
     const chatContext = React.useContext(ChatContext);
     invariant(chatContext, 'should be set');
     const { setChatInputBarHeight, deleteChatInputBarHeight } = chatContext;
     const onInputBarLayout = React.useCallback(
       (event: LayoutEvent) => {
         const { height } = event.nativeEvent.layout;
         setChatInputBarHeight(threadInfo.id, height);
       },
       [threadInfo.id, setChatInputBarHeight],
     );
 
     React.useEffect(() => {
       return () => {
         deleteChatInputBarHeight(threadInfo.id);
       };
     }, [deleteChatInputBarHeight, threadInfo.id]);
 
     const openCamera = React.useCallback(() => {
       keyboardState?.dismissKeyboard();
       navigation.navigate<'ChatCameraModal'>({
         name: ChatCameraModalRouteName,
         params: {
           presentedFrom: route.key,
           thread: threadInfo,
         },
       });
     }, [keyboardState, navigation, route.key, threadInfo]);
 
     return (
       <ConnectedChatInputBarBase
         {...restProps}
         onInputBarLayout={onInputBarLayout}
         openCamera={openCamera}
         navigation={navigation}
       />
     );
   });
 
 export { ConnectedChatInputBar as ChatInputBar, DummyChatInputBar };
diff --git a/native/chat/compose-subchannel.react.js b/native/chat/compose-subchannel.react.js
index a3b834ce7..607beed8a 100644
--- a/native/chat/compose-subchannel.react.js
+++ b/native/chat/compose-subchannel.react.js
@@ -1,383 +1,384 @@
 // @flow
 
 import invariant from 'invariant';
 import _filter from 'lodash/fp/filter.js';
 import _flow from 'lodash/fp/flow.js';
 import _sortBy from 'lodash/fp/sortBy.js';
 import * as React from 'react';
 import { View, Text } from 'react-native';
 
 import {
   newThreadActionTypes,
   useNewThread,
 } from 'lib/actions/thread-actions.js';
 import { useENSNames } from 'lib/hooks/ens-cache.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import {
   userInfoSelectorForPotentialMembers,
   userSearchIndexForPotentialMembers,
 } from 'lib/selectors/user-selectors.js';
 import { getPotentialMemberItems } from 'lib/shared/search-utils.js';
 import { threadInFilterList, userIsMember } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadType, threadTypes } from 'lib/types/thread-types-enum.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { type AccountUserInfo } from 'lib/types/user-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 
 import type { ChatNavigationProp } from './chat.react.js';
 import { useNavigateToThread } from './message-list-types.js';
 import ParentThreadHeader from './parent-thread-header.react.js';
 import LinkButton from '../components/link-button.react.js';
 import { createTagInput } from '../components/tag-input.react.js';
 import ThreadList from '../components/thread-list.react.js';
 import UserList from '../components/user-list.react.js';
 import { useCalendarQuery } from '../navigation/nav-selectors.js';
 import type { NavigationRoute } from '../navigation/route-names.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { useStyles } from '../themes/colors.js';
 import Alert from '../utils/alert.js';
 
 const TagInput = createTagInput<AccountUserInfo>();
 
 const tagInputProps = {
   placeholder: 'username',
   autoFocus: true,
   returnKeyType: 'go',
 };
 
 const tagDataLabelExtractor = (userInfo: AccountUserInfo) => userInfo.username;
 
 export type ComposeSubchannelParams = {
   +threadType: ThreadType,
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type Props = {
   +navigation: ChatNavigationProp<'ComposeSubchannel'>,
   +route: NavigationRoute<'ComposeSubchannel'>,
 };
 function ComposeSubchannel(props: Props): React.Node {
   const [usernameInputText, setUsernameInputText] = React.useState<string>('');
   const [userInfoInputArray, setUserInfoInputArray] = React.useState<
     $ReadOnlyArray<AccountUserInfo>,
   >([]);
   const [createButtonEnabled, setCreateButtonEnabled] =
     React.useState<boolean>(true);
 
   const tagInputRef = React.useRef();
   const onUnknownErrorAlertAcknowledged = React.useCallback(() => {
     setUsernameInputText('');
     tagInputRef.current?.focus();
   }, []);
 
   const waitingOnThreadIDRef = React.useRef<?string>();
 
   const { threadType, parentThreadInfo } = props.route.params;
   const userInfoInputIDs = userInfoInputArray.map(userInfo => userInfo.id);
   const callNewThread = useNewThread();
   const calendarQuery = useCalendarQuery();
   const newChatThreadAction = React.useCallback(async () => {
     try {
       const assumedThreadType =
         threadType ?? threadTypes.COMMUNITY_SECRET_SUBTHREAD;
       const query = calendarQuery();
       invariant(
         assumedThreadType === 3 ||
           assumedThreadType === 4 ||
           assumedThreadType === 6 ||
           assumedThreadType === 7,
         "Sidebars and communities can't be created from the thread composer",
       );
       const result = await callNewThread({
         type: assumedThreadType,
         parentThreadID: parentThreadInfo.id,
         initialMemberIDs: userInfoInputIDs,
         color: parentThreadInfo.color,
         calendarQuery: query,
       });
       waitingOnThreadIDRef.current = result.newThreadID;
       return result;
     } catch (e) {
       setCreateButtonEnabled(true);
       Alert.alert(
         'Unknown error',
         'Uhh... try again?',
         [{ text: 'OK', onPress: onUnknownErrorAlertAcknowledged }],
         { cancelable: false },
       );
       throw e;
     }
   }, [
     threadType,
     userInfoInputIDs,
     calendarQuery,
     parentThreadInfo,
     callNewThread,
     onUnknownErrorAlertAcknowledged,
   ]);
 
   const dispatchActionPromise = useDispatchActionPromise();
   const dispatchNewChatThreadAction = React.useCallback(() => {
     setCreateButtonEnabled(false);
     dispatchActionPromise(newThreadActionTypes, newChatThreadAction());
   }, [dispatchActionPromise, newChatThreadAction]);
 
   const userInfoInputArrayEmpty = userInfoInputArray.length === 0;
   const onPressCreateThread = React.useCallback(() => {
     if (!createButtonEnabled) {
       return;
     }
     if (userInfoInputArrayEmpty) {
       Alert.alert(
         'Chatting to yourself?',
         'Are you sure you want to create a channel containing only yourself?',
         [
           { text: 'Cancel', style: 'cancel' },
           { text: 'Confirm', onPress: dispatchNewChatThreadAction },
         ],
         { cancelable: true },
       );
     } else {
       dispatchNewChatThreadAction();
     }
   }, [
     createButtonEnabled,
     userInfoInputArrayEmpty,
     dispatchNewChatThreadAction,
   ]);
 
   const { navigation } = props;
   const { setOptions } = navigation;
   React.useEffect(() => {
     setOptions({
       // eslint-disable-next-line react/display-name
       headerRight: () => (
         <LinkButton
           text="Create"
           onPress={onPressCreateThread}
           disabled={!createButtonEnabled}
         />
       ),
     });
   }, [setOptions, onPressCreateThread, createButtonEnabled]);
 
   const { setParams } = navigation;
   const parentThreadInfoID = parentThreadInfo.id;
   const reduxParentThreadInfo = useSelector(
     state => threadInfoSelector(state)[parentThreadInfoID],
   );
   React.useEffect(() => {
     if (reduxParentThreadInfo) {
       setParams({ parentThreadInfo: reduxParentThreadInfo });
     }
   }, [reduxParentThreadInfo, setParams]);
 
   const threadInfos = useSelector(threadInfoSelector);
   const newlyCreatedThreadInfo = waitingOnThreadIDRef.current
     ? threadInfos[waitingOnThreadIDRef.current]
     : null;
   const { pushNewThread } = navigation;
   React.useEffect(() => {
     if (!newlyCreatedThreadInfo) {
       return;
     }
 
     const waitingOnThreadID = waitingOnThreadIDRef.current;
     if (waitingOnThreadID === null || waitingOnThreadID === undefined) {
       return;
     }
     waitingOnThreadIDRef.current = undefined;
 
     pushNewThread(newlyCreatedThreadInfo);
   }, [newlyCreatedThreadInfo, pushNewThread]);
 
   const otherUserInfos = useSelector(userInfoSelectorForPotentialMembers);
   const userSearchIndex = useSelector(userSearchIndexForPotentialMembers);
   const { community } = parentThreadInfo;
   const communityThreadInfo = useSelector(state =>
     community ? threadInfoSelector(state)[community] : null,
   );
   const userSearchResults = React.useMemo(
     () =>
       getPotentialMemberItems({
         text: usernameInputText,
         userInfos: otherUserInfos,
         searchIndex: userSearchIndex,
         excludeUserIDs: userInfoInputIDs,
         inputParentThreadInfo: parentThreadInfo,
         inputCommunityThreadInfo: communityThreadInfo,
         threadType,
       }),
     [
       usernameInputText,
       otherUserInfos,
       userSearchIndex,
       userInfoInputIDs,
       parentThreadInfo,
       communityThreadInfo,
       threadType,
     ],
   );
 
   const existingThreads = React.useMemo(() => {
     if (userInfoInputIDs.length === 0) {
       return [];
     }
     return _flow(
       _filter(
         (threadInfo: ThreadInfo) =>
           threadInFilterList(threadInfo) &&
           threadInfo.parentThreadID === parentThreadInfo.id &&
           userInfoInputIDs.every(userID => userIsMember(threadInfo, userID)),
       ),
       _sortBy(
         ([
           'members.length',
           (threadInfo: ThreadInfo) => (threadInfo.name ? 1 : 0),
         ]: $ReadOnlyArray<string | ((threadInfo: ThreadInfo) => mixed)>),
       ),
     )(threadInfos);
   }, [userInfoInputIDs, threadInfos, parentThreadInfo]);
 
   const navigateToThread = useNavigateToThread();
   const onSelectExistingThread = React.useCallback(
     (threadID: string) => {
       const threadInfo = threadInfos[threadID];
       navigateToThread({ threadInfo });
     },
     [threadInfos, navigateToThread],
   );
 
   const onUserSelect = React.useCallback(
     ({ id }: AccountUserInfo) => {
       if (userInfoInputIDs.some(existingUserID => id === existingUserID)) {
         return;
       }
       setUserInfoInputArray(oldUserInfoInputArray => [
         ...oldUserInfoInputArray,
         otherUserInfos[id],
       ]);
       setUsernameInputText('');
     },
     [userInfoInputIDs, otherUserInfos],
   );
 
   const styles = useStyles(unboundStyles);
 
   let existingThreadsSection = null;
   if (existingThreads.length > 0) {
     existingThreadsSection = (
       <View style={styles.existingThreads}>
         <View style={styles.existingThreadsRow}>
           <Text style={styles.existingThreadsLabel}>Existing channels</Text>
         </View>
         <View style={styles.existingThreadList}>
           <ThreadList
             threadInfos={existingThreads}
             onSelect={onSelectExistingThread}
             itemTextStyle={styles.listItem}
           />
         </View>
       </View>
     );
   }
 
   const inputProps = React.useMemo(
     () => ({
       ...tagInputProps,
       onSubmitEditing: onPressCreateThread,
     }),
     [onPressCreateThread],
   );
   const userSearchResultWithENSNames = useENSNames(userSearchResults);
   const userInfoInputArrayWithENSNames = useENSNames(userInfoInputArray);
   return (
     <View style={styles.container}>
       <ParentThreadHeader
         parentThreadInfo={parentThreadInfo}
         childThreadType={threadType}
       />
       <View style={styles.userSelectionRow}>
         <Text style={styles.tagInputLabel}>To: </Text>
         <View style={styles.tagInputContainer}>
           <TagInput
             value={userInfoInputArrayWithENSNames}
             onChange={setUserInfoInputArray}
             text={usernameInputText}
             onChangeText={setUsernameInputText}
             labelExtractor={tagDataLabelExtractor}
             inputProps={inputProps}
             ref={tagInputRef}
           />
         </View>
       </View>
       <View style={styles.userList}>
         <UserList
           userInfos={userSearchResultWithENSNames}
           onSelect={onUserSelect}
           itemTextStyle={styles.listItem}
         />
       </View>
       {existingThreadsSection}
     </View>
   );
 }
 
 const unboundStyles = {
   container: {
     flex: 1,
   },
   existingThreadList: {
     backgroundColor: 'modalBackground',
     flex: 1,
     paddingRight: 12,
   },
   existingThreads: {
     flex: 1,
   },
   existingThreadsLabel: {
     color: 'modalForegroundSecondaryLabel',
     fontSize: 16,
     paddingLeft: 12,
     textAlign: 'center',
   },
   existingThreadsRow: {
     backgroundColor: 'modalForeground',
     borderBottomWidth: 1,
     borderColor: 'modalForegroundBorder',
     borderTopWidth: 1,
     paddingVertical: 6,
   },
   listItem: {
     color: 'modalForegroundLabel',
   },
   tagInputContainer: {
     flex: 1,
     marginLeft: 8,
     paddingRight: 12,
   },
   tagInputLabel: {
     color: 'modalForegroundSecondaryLabel',
     fontSize: 16,
     paddingLeft: 12,
   },
   userList: {
     backgroundColor: 'modalBackground',
     flex: 1,
     paddingLeft: 35,
     paddingRight: 12,
   },
   userSelectionRow: {
     alignItems: 'center',
     backgroundColor: 'modalForeground',
     borderBottomWidth: 1,
     borderColor: 'modalForegroundBorder',
     flexDirection: 'row',
     paddingVertical: 6,
   },
 };
 
 const MemoizedComposeSubchannel: React.ComponentType<Props> =
   React.memo<Props>(ComposeSubchannel);
 
 export default MemoizedComposeSubchannel;
diff --git a/native/chat/inline-engagement.react.js b/native/chat/inline-engagement.react.js
index 5030334ce..c5c2b8e90 100644
--- a/native/chat/inline-engagement.react.js
+++ b/native/chat/inline-engagement.react.js
@@ -1,568 +1,568 @@
 // @flow
 
 import { useNavigation } from '@react-navigation/native';
 import invariant from 'invariant';
 import * as React from 'react';
 import { Text, View } from 'react-native';
 import Animated, {
   Extrapolate,
   interpolateNode,
 } from 'react-native-reanimated';
 
 import type { ReactionInfo } from 'lib/selectors/chat-selectors.js';
 import { getInlineEngagementSidebarText } from 'lib/shared/inline-engagement-utils.js';
 import { useNextLocalID } from 'lib/shared/message-utils.js';
 import type { MessageInfo } from 'lib/types/message-types.js';
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import {
   inlineEngagementLabelStyle,
   inlineEngagementStyle,
   inlineEngagementCenterStyle,
   inlineEngagementRightStyle,
   composedMessageStyle,
   avatarOffset,
 } from './chat-constants.js';
 import { useNavigateToThread } from './message-list-types.js';
 import { useSendReaction } from './reaction-message-utils.js';
 import CommIcon from '../components/comm-icon.react.js';
 import GestureTouchableOpacity from '../components/gesture-touchable-opacity.react.js';
 import { MessageReactionsModalRouteName } from '../navigation/route-names.js';
 import { useStyles } from '../themes/colors.js';
 import type { ChatMessageInfoItemWithHeight } from '../types/chat-types.js';
 
 function dummyNodeForInlineEngagementHeightMeasurement(
   sidebarInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   reactions: ReactionInfo,
 ): React.Element<typeof View> {
   return (
     <View>
       <DummyInlineEngagementNode
         sidebarInfo={sidebarInfo}
         reactions={reactions}
       />
     </View>
   );
 }
 
 type DummyInlineEngagementNodeProps = {
   ...React.ElementConfig<typeof View>,
   +editedLabel?: ?string,
   +sidebarInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +reactions: ReactionInfo,
 };
 function DummyInlineEngagementNode(
   props: DummyInlineEngagementNodeProps,
 ): React.Node {
   const { editedLabel, sidebarInfo, reactions, ...rest } = props;
 
   const dummyEditedLabel = React.useMemo(() => {
     if (!editedLabel) {
       return null;
     }
 
     return (
       <View>
         <Text
           style={[unboundStyles.messageLabel, unboundStyles.dummyMessageLabel]}
         >
           {editedLabel}
         </Text>
       </View>
     );
   }, [editedLabel]);
 
   const dummySidebarItem = React.useMemo(() => {
     if (!sidebarInfo) {
       return null;
     }
 
     const repliesText = getInlineEngagementSidebarText(sidebarInfo);
     return (
       <View style={[unboundStyles.sidebar, unboundStyles.dummySidebar]}>
         <Text style={unboundStyles.repliesText}>{repliesText}</Text>
       </View>
     );
   }, [sidebarInfo]);
 
   const dummyReactionsList = React.useMemo(() => {
     if (Object.keys(reactions).length === 0) {
       return null;
     }
 
     return Object.keys(reactions).map(reaction => {
       const numOfReacts = reactions[reaction].users.length;
       return (
         <View
           key={reaction}
           style={[
             unboundStyles.reactionsContainer,
             unboundStyles.dummyReactionContainer,
           ]}
         >
           <Text
             style={unboundStyles.reaction}
           >{`${reaction} ${numOfReacts}`}</Text>
         </View>
       );
     });
   }, [reactions]);
 
   const dummyContainerStyle = React.useMemo(
     () => [unboundStyles.inlineEngagement, unboundStyles.dummyInlineEngagement],
     [],
   );
 
   if (!dummyEditedLabel && !dummySidebarItem && !dummyReactionsList) {
     return null;
   }
 
   return (
     <View {...rest} style={dummyContainerStyle}>
       {dummyEditedLabel}
       {dummySidebarItem}
       {dummyReactionsList}
     </View>
   );
 }
 
 type Props = {
   +messageInfo: MessageInfo,
-  +threadInfo: ThreadInfo,
-  +sidebarThreadInfo: ?ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  +sidebarThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +reactions: ReactionInfo,
   +disabled?: boolean,
   +positioning?: 'left' | 'right' | 'center',
   +label?: ?string,
 };
 function InlineEngagement(props: Props): React.Node {
   const {
     messageInfo,
     threadInfo,
     sidebarThreadInfo,
     reactions,
     disabled = false,
     positioning,
     label,
   } = props;
 
   const isLeft = positioning === 'left';
   const isRight = positioning === 'right';
   const isCenter = positioning === 'center';
 
   const navigateToThread = useNavigateToThread();
   const { navigate } = useNavigation();
 
   const styles = useStyles(unboundStyles);
 
   const editedLabelStyle = React.useMemo(() => {
     const stylesResult = [styles.messageLabel, styles.messageLabelColor];
     if (isLeft) {
       stylesResult.push(styles.messageLabelLeft);
     } else {
       stylesResult.push(styles.messageLabelRight);
     }
 
     return stylesResult;
   }, [
     isLeft,
     styles.messageLabel,
     styles.messageLabelColor,
     styles.messageLabelLeft,
     styles.messageLabelRight,
   ]);
 
   const editedLabel = React.useMemo(() => {
     if (!label) {
       return null;
     }
 
     return (
       <View>
         <Text style={editedLabelStyle}>{label}</Text>
       </View>
     );
   }, [editedLabelStyle, label]);
 
   const unreadStyle = sidebarThreadInfo?.currentUser.unread
     ? styles.unread
     : null;
   const repliesStyles = React.useMemo(
     () => [styles.repliesText, styles.repliesTextColor, unreadStyle],
     [styles.repliesText, styles.repliesTextColor, unreadStyle],
   );
 
   const onPressSidebar = React.useCallback(() => {
     if (sidebarThreadInfo && !disabled) {
       navigateToThread({ threadInfo: sidebarThreadInfo });
     }
   }, [disabled, navigateToThread, sidebarThreadInfo]);
 
   const repliesText = getInlineEngagementSidebarText(sidebarThreadInfo);
 
   const sidebarStyle = React.useMemo(() => {
     const stylesResult = [styles.sidebar, styles.sidebarColor];
 
     if (Object.keys(reactions).length === 0) {
       return stylesResult;
     }
 
     if (isRight) {
       stylesResult.push(styles.sidebarMarginLeft);
     } else {
       stylesResult.push(styles.sidebarMarginRight);
     }
 
     return stylesResult;
   }, [
     isRight,
     reactions,
     styles.sidebar,
     styles.sidebarColor,
     styles.sidebarMarginLeft,
     styles.sidebarMarginRight,
   ]);
 
   const sidebarItem = React.useMemo(() => {
     if (!sidebarThreadInfo) {
       return null;
     }
     return (
       <GestureTouchableOpacity
         onPress={onPressSidebar}
         activeOpacity={0.7}
         style={sidebarStyle}
       >
         <CommIcon style={styles.icon} size={14} name="sidebar-filled" />
         <Text style={repliesStyles}>{repliesText}</Text>
       </GestureTouchableOpacity>
     );
   }, [
     sidebarThreadInfo,
     onPressSidebar,
     sidebarStyle,
     styles.icon,
     repliesStyles,
     repliesText,
   ]);
 
   const localID = useNextLocalID();
 
   const sendReaction = useSendReaction(
     messageInfo.id,
     localID,
     threadInfo.id,
     reactions,
   );
 
   const onPressReaction = React.useCallback(
     (reaction: string) => sendReaction(reaction),
     [sendReaction],
   );
 
   const onLongPressReaction = React.useCallback(() => {
     navigate<'MessageReactionsModal'>({
       name: MessageReactionsModalRouteName,
       params: { reactions },
     });
   }, [navigate, reactions]);
 
   const reactionStyle = React.useMemo(() => {
     const stylesResult = [
       styles.reactionsContainer,
       styles.reactionsContainerColor,
     ];
 
     if (isRight) {
       stylesResult.push(styles.reactionsContainerMarginLeft);
     } else {
       stylesResult.push(styles.reactionsContainerMarginRight);
     }
 
     return stylesResult;
   }, [
     isRight,
     styles.reactionsContainer,
     styles.reactionsContainerColor,
     styles.reactionsContainerMarginLeft,
     styles.reactionsContainerMarginRight,
   ]);
 
   const reactionList = React.useMemo(() => {
     if (Object.keys(reactions).length === 0) {
       return null;
     }
 
     return Object.keys(reactions).map(reaction => {
       const reactionInfo = reactions[reaction];
       const numOfReacts = reactionInfo.users.length;
 
       const style = reactionInfo.viewerReacted
         ? [...reactionStyle, styles.reactionsContainerSelected]
         : reactionStyle;
 
       return (
         <GestureTouchableOpacity
           style={style}
           onPress={() => onPressReaction(reaction)}
           onLongPress={onLongPressReaction}
           activeOpacity={0.7}
           key={reaction}
         >
           <Text
             style={[styles.reaction, styles.reactionColor]}
           >{`${reaction} ${numOfReacts}`}</Text>
         </GestureTouchableOpacity>
       );
     });
   }, [
     onLongPressReaction,
     onPressReaction,
     reactionStyle,
     reactions,
     styles.reaction,
     styles.reactionColor,
     styles.reactionsContainerSelected,
   ]);
 
   const inlineEngagementPositionStyle = React.useMemo(() => {
     const styleResult = [styles.inlineEngagement];
     if (isRight) {
       styleResult.push(styles.rightInlineEngagement);
     } else if (isCenter) {
       styleResult.push(styles.centerInlineEngagement);
     }
     return styleResult;
   }, [
     isCenter,
     isRight,
     styles.centerInlineEngagement,
     styles.inlineEngagement,
     styles.rightInlineEngagement,
   ]);
 
   return (
     <View style={inlineEngagementPositionStyle}>
       {editedLabel}
       {sidebarItem}
       {reactionList}
     </View>
   );
 }
 
 const unboundStyles = {
   inlineEngagement: {
     flexDirection: 'row',
     marginBottom: inlineEngagementStyle.marginBottom,
     marginLeft: avatarOffset,
     flexWrap: 'wrap',
     top: inlineEngagementStyle.topOffset,
   },
   dummyInlineEngagement: {
     marginRight: 8,
   },
   centerInlineEngagement: {
     marginLeft: 20,
     marginRight: 20,
     justifyContent: 'center',
   },
   rightInlineEngagement: {
     flexDirection: 'row-reverse',
     marginLeft: inlineEngagementRightStyle.marginLeft,
   },
   sidebar: {
     flexDirection: 'row',
     alignItems: 'center',
     paddingHorizontal: 8,
     paddingVertical: 4,
     borderRadius: 8,
     marginTop: inlineEngagementStyle.marginTop,
   },
   dummySidebar: {
     paddingRight: 8,
     // 14 (icon) + 4 (marginRight of icon) + 8 (original left padding)
     paddingLeft: 26,
     marginRight: 4,
   },
   sidebarColor: {
     backgroundColor: 'inlineEngagementBackground',
   },
   sidebarMarginLeft: {
     marginLeft: 4,
   },
   sidebarMarginRight: {
     marginRight: 4,
   },
   icon: {
     color: 'inlineEngagementLabel',
     marginRight: 4,
   },
   repliesText: {
     fontSize: 14,
     lineHeight: 22,
   },
   repliesTextColor: {
     color: 'inlineEngagementLabel',
   },
   unread: {
     color: 'listForegroundLabel',
     fontWeight: 'bold',
   },
   reactionsContainer: {
     display: 'flex',
     flexDirection: 'row',
     alignItems: 'center',
     paddingHorizontal: 8,
     paddingVertical: 4,
     borderRadius: 8,
     marginTop: inlineEngagementStyle.marginTop,
   },
   dummyReactionContainer: {
     marginRight: 4,
   },
   reactionsContainerColor: {
     backgroundColor: 'inlineEngagementBackground',
   },
   reactionsContainerSelected: {
     borderWidth: 1,
     borderColor: 'inlineEngagementLabel',
     paddingHorizontal: 7,
     paddingVertical: 3,
   },
   reactionsContainerMarginLeft: {
     marginLeft: 4,
   },
   reactionsContainerMarginRight: {
     marginRight: 4,
   },
   reaction: {
     fontSize: 14,
     lineHeight: 22,
   },
   reactionColor: {
     color: 'inlineEngagementLabel',
   },
   messageLabel: {
     paddingHorizontal: 3,
     fontSize: 13,
     top: inlineEngagementLabelStyle.topOffset,
     height: inlineEngagementLabelStyle.height,
     marginTop: inlineEngagementStyle.marginTop,
   },
   dummyMessageLabel: {
     marginLeft: 9,
     marginRight: 4,
   },
   messageLabelColor: {
     color: 'messageLabel',
   },
   messageLabelLeft: {
     marginLeft: 9,
     marginRight: 4,
   },
   messageLabelRight: {
     marginRight: 10,
     marginLeft: 4,
   },
   avatarOffset: {
     width: avatarOffset,
   },
 };
 
 type TooltipInlineEngagementProps = {
   +item: ChatMessageInfoItemWithHeight,
   +isOpeningSidebar: boolean,
   +progress: Animated.Node,
   +windowWidth: number,
   +positioning: 'left' | 'right' | 'center',
   +initialCoordinates: {
     +x: number,
     +y: number,
     +width: number,
     +height: number,
   },
 };
 
 function TooltipInlineEngagement(
   props: TooltipInlineEngagementProps,
 ): React.Node {
   const {
     item,
     isOpeningSidebar,
     progress,
     windowWidth,
     initialCoordinates,
     positioning,
   } = props;
   // ESLint doesn't recognize that invariant always throws
   // eslint-disable-next-line consistent-return
   const inlineEngagementStyles = React.useMemo(() => {
     if (positioning === 'left') {
       return {
         position: 'absolute',
         top: inlineEngagementStyle.marginTop + inlineEngagementStyle.topOffset,
         left: composedMessageStyle.marginLeft,
       };
     } else if (positioning === 'right') {
       return {
         position: 'absolute',
         right:
           inlineEngagementRightStyle.marginLeft +
           composedMessageStyle.marginRight,
         top: inlineEngagementStyle.marginTop + inlineEngagementStyle.topOffset,
       };
     } else if (positioning === 'center') {
       return {
         alignSelf: 'center',
         top: inlineEngagementCenterStyle.topOffset,
       };
     }
     invariant(
       false,
       `${positioning} is not a valid positioning value for InlineEngagement`,
     );
   }, [positioning]);
   const inlineEngagementContainer = React.useMemo(() => {
     const opacity = isOpeningSidebar
       ? 0
       : interpolateNode(progress, {
           inputRange: [0, 1],
           outputRange: [1, 0],
           extrapolate: Extrapolate.CLAMP,
         });
     return {
       position: 'absolute',
       width: windowWidth,
       top: initialCoordinates.height,
       left: -initialCoordinates.x,
       opacity,
     };
   }, [
     initialCoordinates.height,
     initialCoordinates.x,
     isOpeningSidebar,
     progress,
     windowWidth,
   ]);
   return (
     <Animated.View style={inlineEngagementContainer}>
       <Animated.View style={inlineEngagementStyles}>
         <InlineEngagement
           messageInfo={item.messageInfo}
           threadInfo={item.threadInfo}
           sidebarThreadInfo={item.threadCreatedFromMessage}
           reactions={item.reactions}
           disabled
         />
       </Animated.View>
     </Animated.View>
   );
 }
 
 export {
   InlineEngagement,
   TooltipInlineEngagement,
   DummyInlineEngagementNode,
   dummyNodeForInlineEngagementHeightMeasurement,
 };
diff --git a/native/chat/message-list-container.react.js b/native/chat/message-list-container.react.js
index 2aa5a2ade..5d7d0e2f1 100644
--- a/native/chat/message-list-container.react.js
+++ b/native/chat/message-list-container.react.js
@@ -1,446 +1,447 @@
 // @flow
 
 import Icon from '@expo/vector-icons/FontAwesome5.js';
 import { useNavigationState } from '@react-navigation/native';
 import invariant from 'invariant';
 import * as React from 'react';
 import { View, Text } from 'react-native';
 
 import genesis from 'lib/facts/genesis.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import {
   userInfoSelectorForPotentialMembers,
   userSearchIndexForPotentialMembers,
 } from 'lib/selectors/user-selectors.js';
 import {
   getPotentialMemberItems,
   useSearchUsers,
 } from 'lib/shared/search-utils.js';
 import {
   useExistingThreadInfoFinder,
   pendingThreadType,
 } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import type { AccountUserInfo, UserListItem } from 'lib/types/user-types.js';
 
 import { type MessagesMeasurer, useHeightMeasurer } from './chat-context.js';
 import { ChatInputBar } from './chat-input-bar.react.js';
 import type { ChatNavigationProp } from './chat.react.js';
 import {
   type NativeChatMessageItem,
   useNativeMessageListData,
 } from './message-data.react.js';
 import MessageListThreadSearch from './message-list-thread-search.react.js';
 import { MessageListContextProvider } from './message-list-types.js';
 import MessageList from './message-list.react.js';
 import ParentThreadHeader from './parent-thread-header.react.js';
 import ContentLoading from '../components/content-loading.react.js';
 import { InputStateContext } from '../input/input-state.js';
 import {
   OverlayContext,
   type OverlayContextType,
 } from '../navigation/overlay-context.js';
 import type { NavigationRoute } from '../navigation/route-names.js';
 import {
   ThreadSettingsRouteName,
   MessageResultsScreenRouteName,
 } from '../navigation/route-names.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { type Colors, useColors, useStyles } from '../themes/colors.js';
 import type { ChatMessageItemWithHeight } from '../types/chat-types.js';
 
 type BaseProps = {
   +navigation: ChatNavigationProp<'MessageList'>,
   +route: NavigationRoute<'MessageList'>,
 };
 type Props = {
   ...BaseProps,
   // Redux state
   +usernameInputText: string,
   +updateUsernameInput: (text: string) => void,
   +userInfoInputArray: $ReadOnlyArray<AccountUserInfo>,
   +updateTagInput: (items: $ReadOnlyArray<AccountUserInfo>) => void,
   +resolveToUser: (user: AccountUserInfo) => void,
   +userSearchResults: $ReadOnlyArray<UserListItem>,
-  +threadInfo: ThreadInfo,
-  +genesisThreadInfo: ?ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  +genesisThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +messageListData: ?$ReadOnlyArray<NativeChatMessageItem>,
   +colors: Colors,
   +styles: typeof unboundStyles,
   // withOverlayContext
   +overlayContext: ?OverlayContextType,
   +measureMessages: MessagesMeasurer,
 };
 type State = {
   +listDataWithHeights: ?$ReadOnlyArray<ChatMessageItemWithHeight>,
 };
 class MessageListContainer extends React.PureComponent<Props, State> {
   state: State = {
     listDataWithHeights: null,
   };
   pendingListDataWithHeights: ?$ReadOnlyArray<ChatMessageItemWithHeight>;
 
   get frozen() {
     const { overlayContext } = this.props;
     invariant(
       overlayContext,
       'MessageListContainer should have OverlayContext',
     );
     return overlayContext.scrollBlockingModalStatus !== 'closed';
   }
 
   setListData = (
     listDataWithHeights: $ReadOnlyArray<ChatMessageItemWithHeight>,
   ) => {
     this.setState({ listDataWithHeights });
   };
 
   componentDidMount() {
     this.props.measureMessages(
       this.props.messageListData,
       this.props.threadInfo,
       this.setListData,
     );
   }
 
   componentDidUpdate(prevProps: Props) {
     const oldListData = prevProps.messageListData;
     const newListData = this.props.messageListData;
     if (!newListData && oldListData) {
       this.setState({ listDataWithHeights: null });
     }
 
     if (
       oldListData !== newListData ||
       prevProps.threadInfo !== this.props.threadInfo ||
       prevProps.measureMessages !== this.props.measureMessages
     ) {
       this.props.measureMessages(
         newListData,
         this.props.threadInfo,
         this.allHeightsMeasured,
       );
     }
 
     if (!this.frozen && this.pendingListDataWithHeights) {
       this.setState({ listDataWithHeights: this.pendingListDataWithHeights });
       this.pendingListDataWithHeights = undefined;
     }
   }
 
   render() {
     const { threadInfo, styles } = this.props;
     const { listDataWithHeights } = this.state;
     const { searching } = this.props.route.params;
 
     let searchComponent = null;
     if (searching) {
       const { userInfoInputArray, genesisThreadInfo } = this.props;
       // It's technically possible for the client to be missing the Genesis
       // ThreadInfo when it first opens up (before the server delivers it)
       let parentThreadHeader;
       if (genesisThreadInfo) {
         parentThreadHeader = (
           <ParentThreadHeader
             parentThreadInfo={genesisThreadInfo}
             childThreadType={pendingThreadType(userInfoInputArray.length)}
           />
         );
       }
       searchComponent = (
         <>
           {parentThreadHeader}
           <MessageListThreadSearch
             usernameInputText={this.props.usernameInputText}
             updateUsernameInput={this.props.updateUsernameInput}
             userInfoInputArray={userInfoInputArray}
             updateTagInput={this.props.updateTagInput}
             resolveToUser={this.props.resolveToUser}
             userSearchResults={this.props.userSearchResults}
           />
         </>
       );
     }
 
     const showMessageList =
       !searching || this.props.userInfoInputArray.length > 0;
     let messageList;
     if (showMessageList && listDataWithHeights) {
       messageList = (
         <MessageList
           threadInfo={threadInfo}
           messageListData={listDataWithHeights}
           navigation={this.props.navigation}
           route={this.props.route}
         />
       );
     } else if (showMessageList) {
       messageList = (
         <ContentLoading fillType="flex" colors={this.props.colors} />
       );
     }
     const threadContentStyles = showMessageList
       ? [styles.threadContent]
       : [styles.hiddenThreadContent];
     const pointerEvents = showMessageList ? 'auto' : 'none';
     const threadContent = (
       <View style={threadContentStyles} pointerEvents={pointerEvents}>
         {messageList}
         <ChatInputBar
           threadInfo={threadInfo}
           navigation={this.props.navigation}
           route={this.props.route}
         />
       </View>
     );
 
     return (
       <View style={styles.container}>
         {searchComponent}
         {threadContent}
       </View>
     );
   }
 
   allHeightsMeasured = (
     listDataWithHeights: $ReadOnlyArray<ChatMessageItemWithHeight>,
   ) => {
     if (this.frozen) {
       this.pendingListDataWithHeights = listDataWithHeights;
     } else {
       this.setState({ listDataWithHeights });
     }
   };
 }
 
 const unboundStyles = {
   pinnedCountBanner: {
     backgroundColor: 'panelForeground',
     height: 30,
     flexDirection: 'row',
     textAlign: 'center',
     justifyContent: 'center',
     alignItems: 'center',
   },
   pinnedCountText: {
     color: 'panelBackgroundLabel',
     marginRight: 5,
   },
   container: {
     backgroundColor: 'listBackground',
     flex: 1,
   },
   threadContent: {
     flex: 1,
   },
   hiddenThreadContent: {
     height: 0,
     opacity: 0,
   },
 };
 
 const ConnectedMessageListContainer: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedMessageListContainer(
     props: BaseProps,
   ) {
     const [usernameInputText, setUsernameInputText] = React.useState('');
     const [userInfoInputArray, setUserInfoInputArray] = React.useState<
       $ReadOnlyArray<AccountUserInfo>,
     >([]);
 
     const otherUserInfos = useSelector(userInfoSelectorForPotentialMembers);
     const userSearchIndex = useSelector(userSearchIndexForPotentialMembers);
 
     const serverSearchResults = useSearchUsers(usernameInputText);
 
     const userSearchResults = React.useMemo(() => {
       return getPotentialMemberItems({
         text: usernameInputText,
         userInfos: otherUserInfos,
         searchIndex: userSearchIndex,
         excludeUserIDs: userInfoInputArray.map(userInfo => userInfo.id),
         includeServerSearchUsers: serverSearchResults,
       });
     }, [
       usernameInputText,
       otherUserInfos,
       userSearchIndex,
       userInfoInputArray,
       serverSearchResults,
     ]);
 
     const [baseThreadInfo, setBaseThreadInfo] = React.useState(
       props.route.params.threadInfo,
     );
 
     const existingThreadInfoFinder =
       useExistingThreadInfoFinder(baseThreadInfo);
 
     const isSearching = !!props.route.params.searching;
     const threadInfo = React.useMemo(
       () =>
         existingThreadInfoFinder({
           searching: isSearching,
           userInfoInputArray,
         }),
       [existingThreadInfoFinder, isSearching, userInfoInputArray],
     );
     invariant(
       threadInfo,
       'threadInfo must be specified in messageListContainer',
     );
 
     const inputState = React.useContext(InputStateContext);
     invariant(inputState, 'inputState should be set in MessageListContainer');
 
     const isFocused = props.navigation.isFocused();
     const { setPendingThreadUpdateHandler } = inputState;
     React.useEffect(() => {
       if (!isFocused) {
         return undefined;
       }
       setPendingThreadUpdateHandler(threadInfo.id, setBaseThreadInfo);
       return () => {
         setPendingThreadUpdateHandler(threadInfo.id, undefined);
       };
     }, [setPendingThreadUpdateHandler, isFocused, threadInfo.id]);
 
     const { setParams } = props.navigation;
     const navigationStack = useNavigationState(state => state.routes);
     React.useEffect(() => {
       const topRoute = navigationStack[navigationStack.length - 1];
       if (topRoute?.name !== ThreadSettingsRouteName) {
         return;
       }
       setBaseThreadInfo(threadInfo);
       if (isSearching) {
         setParams({ searching: false });
       }
     }, [isSearching, navigationStack, setParams, threadInfo]);
 
     const hideSearch = React.useCallback(() => {
       setBaseThreadInfo(threadInfo);
       setParams({ searching: false });
     }, [setParams, threadInfo]);
     React.useEffect(() => {
       if (!isSearching) {
         return undefined;
       }
       inputState.registerSendCallback(hideSearch);
       return () => inputState.unregisterSendCallback(hideSearch);
     }, [hideSearch, inputState, isSearching]);
 
     React.useEffect(() => {
       setParams({ threadInfo });
     }, [setParams, threadInfo]);
 
     const updateTagInput = React.useCallback(
       (input: $ReadOnlyArray<AccountUserInfo>) => setUserInfoInputArray(input),
       [],
     );
     const updateUsernameInput = React.useCallback(
       (text: string) => setUsernameInputText(text),
       [],
     );
     const { editInputMessage } = inputState;
     const resolveToUser = React.useCallback(
       (user: AccountUserInfo) => {
         const resolvedThreadInfo = existingThreadInfoFinder({
           searching: true,
           userInfoInputArray: [user],
         });
         invariant(
           resolvedThreadInfo,
           'resolvedThreadInfo must be specified in messageListContainer',
         );
         editInputMessage({ message: '', mode: 'prepend' });
         setBaseThreadInfo(resolvedThreadInfo);
         setParams({ searching: false, threadInfo: resolvedThreadInfo });
       },
       [existingThreadInfoFinder, editInputMessage, setParams],
     );
 
     const messageListData = useNativeMessageListData({
       searching: isSearching,
       userInfoInputArray,
       threadInfo,
     });
     const colors = useColors();
     const styles = useStyles(unboundStyles);
     const overlayContext = React.useContext(OverlayContext);
     const measureMessages = useHeightMeasurer();
 
     const genesisThreadInfo = useSelector(
       state => threadInfoSelector(state)[genesis.id],
     );
 
     let bannerText;
     if (!threadInfo.pinnedCount || threadInfo.pinnedCount === 0) {
       bannerText = '';
     } else {
       const messageNoun = threadInfo.pinnedCount === 1 ? 'message' : 'messages';
       bannerText = `${threadInfo.pinnedCount} pinned ${messageNoun}`;
     }
 
     const navigateToMessageResults = React.useCallback(() => {
       props.navigation.navigate<'MessageResultsScreen'>({
         name: MessageResultsScreenRouteName,
         params: {
           threadInfo,
         },
         key: `MessageResultsScreen${threadInfo.id}`,
       });
     }, [props.navigation, threadInfo]);
 
     const pinnedCountBanner = React.useMemo(() => {
       if (!bannerText) {
         return null;
       }
 
       return (
         <View style={styles.pinnedCountBanner}>
           <Text
             onPress={navigateToMessageResults}
             style={styles.pinnedCountText}
           >
             {bannerText}
           </Text>
           <Icon
             name="chevron-right"
             size={12}
             color={colors.panelBackgroundLabel}
           />
         </View>
       );
     }, [
       navigateToMessageResults,
       bannerText,
       styles.pinnedCountBanner,
       styles.pinnedCountText,
       colors.panelBackgroundLabel,
     ]);
 
     return (
       <MessageListContextProvider threadInfo={threadInfo}>
         {pinnedCountBanner}
         <MessageListContainer
           {...props}
           usernameInputText={usernameInputText}
           updateUsernameInput={updateUsernameInput}
           userInfoInputArray={userInfoInputArray}
           updateTagInput={updateTagInput}
           resolveToUser={resolveToUser}
           userSearchResults={userSearchResults}
           threadInfo={threadInfo}
           genesisThreadInfo={genesisThreadInfo}
           messageListData={messageListData}
           colors={colors}
           styles={styles}
           overlayContext={overlayContext}
           measureMessages={measureMessages}
         />
       </MessageListContextProvider>
     );
   });
 
 export default ConnectedMessageListContainer;
diff --git a/native/chat/message-list-header-title.react.js b/native/chat/message-list-header-title.react.js
index 3b0fb9b65..0694152fd 100644
--- a/native/chat/message-list-header-title.react.js
+++ b/native/chat/message-list-header-title.react.js
@@ -1,107 +1,108 @@
 // @flow
 
 import {
   HeaderTitle,
   type HeaderTitleInputProps,
 } from '@react-navigation/elements';
 import * as React from 'react';
 import { View } from 'react-native';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 import { firstLine } from 'lib/utils/string-utils.js';
 
 import type { ChatNavigationProp } from './chat.react.js';
 import ThreadAvatar from '../avatars/thread-avatar.react.js';
 import Button from '../components/button.react.js';
 import { ThreadSettingsRouteName } from '../navigation/route-names.js';
 import { useStyles } from '../themes/colors.js';
 
 type BaseProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +navigate: $PropertyType<ChatNavigationProp<'MessageList'>, 'navigate'>,
   +isSearchEmpty: boolean,
   +areSettingsEnabled: boolean,
   ...HeaderTitleInputProps,
 };
 type Props = {
   ...BaseProps,
   +styles: typeof unboundStyles,
   +title: string,
 };
 class MessageListHeaderTitle extends React.PureComponent<Props> {
   render() {
     const {
       threadInfo,
       navigate,
       isSearchEmpty,
       areSettingsEnabled,
       styles,
       title,
       ...rest
     } = this.props;
 
     let avatar;
     if (!isSearchEmpty) {
       avatar = (
         <View style={styles.avatarContainer}>
           <ThreadAvatar size="S" threadInfo={threadInfo} />
         </View>
       );
     }
 
     return (
       <Button
         onPress={this.onPress}
         style={styles.button}
         androidBorderlessRipple={true}
         disabled={!areSettingsEnabled}
       >
         <View style={styles.container}>
           {avatar}
           <HeaderTitle {...rest}>{firstLine(title)}</HeaderTitle>
         </View>
       </Button>
     );
   }
 
   onPress = () => {
     const { threadInfo } = this.props;
     this.props.navigate<'ThreadSettings'>({
       name: ThreadSettingsRouteName,
       params: { threadInfo },
       key: `${ThreadSettingsRouteName}${threadInfo.id}`,
     });
   };
 }
 
 const unboundStyles = {
   avatarContainer: {
     marginRight: 8,
   },
   button: {
     flex: 1,
   },
   container: {
     flex: 1,
     flexDirection: 'row',
     alignItems: 'center',
   },
 };
 
 const ConnectedMessageListHeaderTitle: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedMessageListHeaderTitle(
     props: BaseProps,
   ) {
     const styles = useStyles(unboundStyles);
 
     const { uiName } = useResolvedThreadInfo(props.threadInfo);
 
     const { isSearchEmpty } = props;
 
     const title = isSearchEmpty ? 'New Message' : uiName;
 
     return <MessageListHeaderTitle {...props} styles={styles} title={title} />;
   });
 
 export default ConnectedMessageListHeaderTitle;
diff --git a/native/chat/message-list-types.js b/native/chat/message-list-types.js
index db8d4e02b..c5f5ffa0a 100644
--- a/native/chat/message-list-types.js
+++ b/native/chat/message-list-types.js
@@ -1,136 +1,136 @@
 // @flow
 
 import { useNavigation, useNavigationState } from '@react-navigation/native';
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { type UserInfo } from 'lib/types/user-types.js';
 
 import { ChatContext } from './chat-context.js';
 import type { ChatRouterNavigationAction } from './chat-router.js';
 import type { MarkdownRules } from '../markdown/rules.react.js';
 import { useTextMessageRulesFunc } from '../markdown/rules.react.js';
 import {
   MessageListRouteName,
   TextMessageTooltipModalRouteName,
 } from '../navigation/route-names.js';
 
 export type MessageListParams = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +pendingPersonalThreadUserInfo?: UserInfo,
   +searching?: boolean,
   +removeEditMode?: ?RemoveEditMode,
 };
 
 export type RemoveEditMode = (
   action: ChatRouterNavigationAction,
 ) => 'ignore_action' | 'reduce_action';
 
 export type MessageListContextType = {
   +getTextMessageMarkdownRules: (useDarkStyle: boolean) => MarkdownRules,
 };
 
 const MessageListContext: React.Context<?MessageListContextType> =
   React.createContext<?MessageListContextType>();
 
 function useMessageListContext(
   threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ) {
   const chatMentionCandidates = useThreadChatMentionCandidates(threadInfo);
   const getTextMessageMarkdownRules = useTextMessageRulesFunc(
     threadInfo,
     chatMentionCandidates,
   );
   return React.useMemo(
     () => ({
       getTextMessageMarkdownRules,
     }),
     [getTextMessageMarkdownRules],
   );
 }
 
 type Props = {
   +children: React.Node,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function MessageListContextProvider(props: Props): React.Node {
   const context = useMessageListContext(props.threadInfo);
   return (
     <MessageListContext.Provider value={context}>
       {props.children}
     </MessageListContext.Provider>
   );
 }
 
 type NavigateToThreadAction = {
   +name: typeof MessageListRouteName,
   +params: MessageListParams,
   +key: string,
 };
 function createNavigateToThreadAction(
   params: MessageListParams,
 ): NavigateToThreadAction {
   return {
     name: MessageListRouteName,
     params,
     key: `${MessageListRouteName}${params.threadInfo.id}`,
   };
 }
 
 function useNavigateToThread(): (params: MessageListParams) => void {
   const { navigate } = useNavigation();
   return React.useCallback(
     (params: MessageListParams) => {
       navigate<'MessageList'>(createNavigateToThreadAction(params));
     },
     [navigate],
   );
 }
 
 function useTextMessageMarkdownRules(useDarkStyle: boolean): MarkdownRules {
   const messageListContext = React.useContext(MessageListContext);
   invariant(messageListContext, 'DummyTextNode should have MessageListContext');
   return messageListContext.getTextMessageMarkdownRules(useDarkStyle);
 }
 
 function useNavigateToThreadWithFadeAnimation(
   threadInfo: ThreadInfo,
   messageKey: ?string,
 ): () => mixed {
   const chatContext = React.useContext(ChatContext);
   invariant(chatContext, 'ChatContext should be set');
   const {
     setCurrentTransitionSidebarSourceID: setSidebarSourceID,
     setSidebarAnimationType,
   } = chatContext;
   const navigateToThread = useNavigateToThread();
   const navigationStack = useNavigationState(state => state.routes);
   return React.useCallback(() => {
     if (
       navigationStack[navigationStack.length - 1].name ===
       TextMessageTooltipModalRouteName
     ) {
       setSidebarSourceID(messageKey);
       setSidebarAnimationType('fade_source_message');
     }
     navigateToThread({ threadInfo });
   }, [
     messageKey,
     navigateToThread,
     navigationStack,
     setSidebarAnimationType,
     setSidebarSourceID,
     threadInfo,
   ]);
 }
 
 export {
   MessageListContextProvider,
   createNavigateToThreadAction,
   useNavigateToThread,
   useTextMessageMarkdownRules,
   useNavigateToThreadWithFadeAnimation,
 };
diff --git a/native/chat/message-result.react.js b/native/chat/message-result.react.js
index f5e5c2bb8..9fd709b03 100644
--- a/native/chat/message-result.react.js
+++ b/native/chat/message-result.react.js
@@ -1,95 +1,96 @@
 // @flow
 
 import * as React from 'react';
 import { Text, View } from 'react-native';
 import { ScrollView } from 'react-native-gesture-handler';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import { type ChatNavigationProp } from './chat.react.js';
 import { MessageListContextProvider } from './message-list-types.js';
 import Message from './message.react.js';
 import { modifyItemForResultScreen } from './utils.js';
 import type { AppNavigationProp } from '../navigation/app-navigator.react';
 import type { NavigationRoute } from '../navigation/route-names';
 import { useStyles } from '../themes/colors.js';
 import type { ChatMessageInfoItemWithHeight } from '../types/chat-types.js';
 import type { VerticalBounds } from '../types/layout-types.js';
 
 type MessageResultProps = {
   +item: ChatMessageInfoItemWithHeight,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +navigation:
     | AppNavigationProp<'TogglePinModal'>
     | ChatNavigationProp<'MessageResultsScreen'>
     | ChatNavigationProp<'MessageSearch'>,
   +route:
     | NavigationRoute<'TogglePinModal'>
     | NavigationRoute<'MessageResultsScreen'>
     | NavigationRoute<'MessageSearch'>,
   +messageVerticalBounds: ?VerticalBounds,
   +scrollable: boolean,
 };
 
 function MessageResult(props: MessageResultProps): React.Node {
   const styles = useStyles(unboundStyles);
 
   const onToggleFocus = React.useCallback(() => {}, []);
 
   const item = React.useMemo(
     () => modifyItemForResultScreen(props.item),
     [props.item],
   );
 
   const containerStyle = React.useMemo(
     () =>
       props.scrollable
         ? [styles.container, styles.containerOverflow]
         : styles.container,
     [props.scrollable, styles.container, styles.containerOverflow],
   );
 
   return (
     <ScrollView style={containerStyle}>
       <MessageListContextProvider threadInfo={props.threadInfo}>
         <View style={styles.viewContainer}>
           <Message
             item={item}
             focused={false}
             navigation={props.navigation}
             route={props.route}
             toggleFocus={onToggleFocus}
             verticalBounds={props.messageVerticalBounds}
             shouldDisplayPinIndicator={false}
           />
           <Text style={styles.messageDate}>
             {longAbsoluteDate(props.item.messageInfo.time)}
           </Text>
         </View>
       </MessageListContextProvider>
     </ScrollView>
   );
 }
 
 const unboundStyles = {
   container: {
     marginTop: 5,
     backgroundColor: 'panelForeground',
   },
   containerOverflow: {
     overflow: 'scroll',
     maxHeight: 400,
   },
   viewContainer: {
     marginTop: 10,
     marginBottom: 10,
   },
   messageDate: {
     color: 'messageLabel',
     fontSize: 12,
     marginLeft: 55,
   },
 };
 
 export default MessageResult;
diff --git a/native/chat/message-results-screen.react.js b/native/chat/message-results-screen.react.js
index e6c2e2ed8..fc5b2e2af 100644
--- a/native/chat/message-results-screen.react.js
+++ b/native/chat/message-results-screen.react.js
@@ -1,180 +1,181 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import { View } from 'react-native';
 import { ScrollView } from 'react-native-gesture-handler';
 
 import { useFetchPinnedMessages } from 'lib/actions/message-actions.js';
 import { messageListData } from 'lib/selectors/chat-selectors.js';
 import {
   createMessageInfo,
   isInvalidPinSourceForThread,
 } from 'lib/shared/message-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import { useHeightMeasurer } from './chat-context.js';
 import type { ChatNavigationProp } from './chat.react';
 import MessageResult from './message-result.react.js';
 import type { NavigationRoute } from '../navigation/route-names';
 import { useSelector } from '../redux/redux-utils.js';
 import { useStyles } from '../themes/colors.js';
 import type { ChatMessageItemWithHeight } from '../types/chat-types.js';
 
 export type MessageResultsScreenParams = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type MessageResultsScreenProps = {
   +navigation: ChatNavigationProp<'MessageResultsScreen'>,
   +route: NavigationRoute<'MessageResultsScreen'>,
 };
 
 function MessageResultsScreen(props: MessageResultsScreenProps): React.Node {
   const { navigation, route } = props;
   const { threadInfo } = route.params;
   const styles = useStyles(unboundStyles);
   const { id: threadID } = threadInfo;
   const [rawMessageResults, setRawMessageResults] = React.useState([]);
 
   const measureMessages = useHeightMeasurer();
   const [measuredMessages, setMeasuredMessages] = React.useState([]);
 
   const [messageVerticalBounds, setMessageVerticalBounds] = React.useState();
   const scrollViewContainerRef = React.useRef();
 
   const callFetchPinnedMessages = useFetchPinnedMessages();
   const userInfos = useSelector(state => state.userStore.userInfos);
 
   React.useEffect(() => {
     (async () => {
       const result = await callFetchPinnedMessages({ threadID });
       setRawMessageResults(result.pinnedMessages);
     })();
   }, [callFetchPinnedMessages, threadID]);
 
   const translatedMessageResults = React.useMemo(() => {
     const threadInfos = { [threadID]: threadInfo };
 
     return rawMessageResults
       .map(messageInfo =>
         createMessageInfo(messageInfo, null, userInfos, threadInfos),
       )
       .filter(Boolean);
   }, [rawMessageResults, userInfos, threadID, threadInfo]);
 
   const chatMessageInfos = useSelector(
     messageListData(threadInfo.id, translatedMessageResults),
   );
 
   const sortedUniqueChatMessageInfoItems = React.useMemo(() => {
     if (!chatMessageInfos) {
       return [];
     }
 
     const chatMessageInfoItems = chatMessageInfos.filter(
       item =>
         item.itemType === 'message' &&
         item.isPinned &&
         !isInvalidPinSourceForThread(item.messageInfo, threadInfo),
     );
 
     // By the nature of using messageListData and passing in
     // the desired translatedMessageResults as additional
     // messages, we will have duplicate ChatMessageInfoItems.
     const uniqueChatMessageInfoItemsMap = new Map();
     chatMessageInfoItems.forEach(
       item =>
         item.messageInfo &&
         item.messageInfo.id &&
         uniqueChatMessageInfoItemsMap.set(item.messageInfo.id, item),
     );
 
     // Push the items in the order they appear in the rawMessageResults
     // since the messages fetched from the server are already sorted
     // in the order of pin_time (newest first).
     const sortedChatMessageInfoItems = [];
     for (let i = 0; i < rawMessageResults.length; i++) {
       sortedChatMessageInfoItems.push(
         uniqueChatMessageInfoItemsMap.get(rawMessageResults[i].id),
       );
     }
 
     return sortedChatMessageInfoItems.filter(Boolean);
   }, [chatMessageInfos, rawMessageResults, threadInfo]);
 
   const measureCallback = React.useCallback(
     (listDataWithHeights: $ReadOnlyArray<ChatMessageItemWithHeight>) => {
       setMeasuredMessages(listDataWithHeights);
     },
     [],
   );
 
   React.useEffect(() => {
     measureMessages(
       sortedUniqueChatMessageInfoItems,
       threadInfo,
       measureCallback,
     );
   }, [
     measureCallback,
     measureMessages,
     sortedUniqueChatMessageInfoItems,
     threadInfo,
   ]);
 
   const onLayout = React.useCallback(() => {
     scrollViewContainerRef.current?.measure(
       (x, y, width, height, pageX, pageY) => {
         if (
           height === null ||
           height === undefined ||
           pageY === null ||
           pageY === undefined
         ) {
           return;
         }
 
         setMessageVerticalBounds({ height, y: pageY });
       },
     );
   }, []);
 
   const messageResultsToDisplay = React.useMemo(
     () =>
       measuredMessages.map(item => {
         invariant(item.itemType !== 'loader', 'should not be loader');
 
         return (
           <MessageResult
             key={item.messageInfo.id}
             item={item}
             threadInfo={threadInfo}
             navigation={navigation}
             route={route}
             messageVerticalBounds={messageVerticalBounds}
             scrollable={false}
           />
         );
       }),
     [measuredMessages, threadInfo, navigation, route, messageVerticalBounds],
   );
 
   return (
     <View
       ref={scrollViewContainerRef}
       onLayout={onLayout}
       style={styles.scrollViewContainer}
     >
       <ScrollView>{messageResultsToDisplay}</ScrollView>
     </View>
   );
 }
 
 const unboundStyles = {
   scrollViewContainer: {
     flex: 1,
   },
 };
 
 export default MessageResultsScreen;
diff --git a/native/chat/parent-thread-header.react.js b/native/chat/parent-thread-header.react.js
index 731db9bbe..c903fb362 100644
--- a/native/chat/parent-thread-header.react.js
+++ b/native/chat/parent-thread-header.react.js
@@ -1,72 +1,73 @@
 // @flow
 
 import * as React from 'react';
 import { View, Text } from 'react-native';
 import { ScrollView } from 'react-native-gesture-handler';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadType } from 'lib/types/thread-types-enum.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import { useNavigateToThread } from './message-list-types.js';
 import Button from '../components/button.react.js';
 import CommunityPill from '../components/community-pill.react.js';
 import ThreadVisibility from '../components/thread-visibility.react.js';
 import { useColors, useStyles } from '../themes/colors.js';
 
 type Props = {
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +childThreadType: ThreadType,
 };
 function ParentThreadHeader(props: Props): React.Node {
   const colors = useColors();
   const threadVisibilityColor = colors.modalForegroundLabel;
   const styles = useStyles(unboundStyles);
 
   const { parentThreadInfo, childThreadType } = props;
 
   const navigateToThread = useNavigateToThread();
   const onPressParentThread = React.useCallback(() => {
     navigateToThread({ threadInfo: parentThreadInfo });
   }, [parentThreadInfo, navigateToThread]);
 
   return (
     <View style={styles.container}>
       <ScrollView
         contentContainerStyle={styles.contentContainer}
         showsHorizontalScrollIndicator={false}
         horizontal={true}
       >
         <ThreadVisibility
           threadType={childThreadType}
           color={threadVisibilityColor}
         />
         <Text style={styles.within}>within</Text>
         <Button onPress={onPressParentThread}>
           <CommunityPill community={parentThreadInfo} />
         </Button>
       </ScrollView>
     </View>
   );
 }
 
 const height = 48;
 const unboundStyles = {
   container: {
     height,
     backgroundColor: 'panelForeground',
     borderBottomWidth: 1,
     borderBottomColor: 'panelForegroundBorder',
   },
   contentContainer: {
     alignItems: 'center',
     flexDirection: 'row',
     paddingHorizontal: 12,
   },
   within: {
     color: 'modalSubtextLabel',
     fontSize: 16,
     paddingHorizontal: 6,
   },
 };
 
 export default ParentThreadHeader;
diff --git a/native/chat/settings/compose-subchannel-modal.react.js b/native/chat/settings/compose-subchannel-modal.react.js
index 040f96216..6ab07a3ae 100644
--- a/native/chat/settings/compose-subchannel-modal.react.js
+++ b/native/chat/settings/compose-subchannel-modal.react.js
@@ -1,152 +1,153 @@
 // @flow
 
 import IonIcon from '@expo/vector-icons/Ionicons.js';
 import * as React from 'react';
 import { Text } from 'react-native';
 
 import { threadTypeDescriptions } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import Button from '../../components/button.react.js';
 import Modal from '../../components/modal.react.js';
 import SWMansionIcon from '../../components/swmansion-icon.react.js';
 import type { RootNavigationProp } from '../../navigation/root-navigator.react.js';
 import type { NavigationRoute } from '../../navigation/route-names.js';
 import { ComposeSubchannelRouteName } from '../../navigation/route-names.js';
 import { type Colors, useStyles, useColors } from '../../themes/colors.js';
 
 export type ComposeSubchannelModalParams = {
   +presentedFrom: string,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type BaseProps = {
   +navigation: RootNavigationProp<'ComposeSubchannelModal'>,
   +route: NavigationRoute<'ComposeSubchannelModal'>,
 };
 type Props = {
   ...BaseProps,
   +colors: Colors,
   +styles: typeof unboundStyles,
 };
 class ComposeSubchannelModal extends React.PureComponent<Props> {
   render() {
     return (
       <Modal modalStyle={this.props.styles.modal}>
         <Text style={this.props.styles.visibility}>Chat type</Text>
         <Button style={this.props.styles.option} onPress={this.onPressOpen}>
           <SWMansionIcon
             name="globe-1"
             size={32}
             style={this.props.styles.visibilityIcon}
           />
           <Text style={this.props.styles.optionText}>Open</Text>
           <Text style={this.props.styles.optionExplanation}>
             {threadTypeDescriptions[threadTypes.COMMUNITY_OPEN_SUBTHREAD]}
           </Text>
           <IonIcon
             name="ios-arrow-forward"
             size={20}
             style={this.props.styles.forwardIcon}
           />
         </Button>
         <Button style={this.props.styles.option} onPress={this.onPressSecret}>
           <SWMansionIcon
             name="lock-on"
             size={32}
             style={this.props.styles.visibilityIcon}
           />
           <Text style={this.props.styles.optionText}>Secret</Text>
           <Text style={this.props.styles.optionExplanation}>
             {threadTypeDescriptions[threadTypes.COMMUNITY_SECRET_SUBTHREAD]}
           </Text>
           <IonIcon
             name="ios-arrow-forward"
             size={20}
             style={this.props.styles.forwardIcon}
           />
         </Button>
       </Modal>
     );
   }
 
   onPressOpen = () => {
     const threadInfo = this.props.route.params.threadInfo;
     this.props.navigation.navigate<'ComposeSubchannel'>({
       name: ComposeSubchannelRouteName,
       params: {
         threadType: threadTypes.COMMUNITY_OPEN_SUBTHREAD,
         parentThreadInfo: threadInfo,
       },
       key:
         `${ComposeSubchannelRouteName}|` +
         `${threadInfo.id}|${threadTypes.COMMUNITY_OPEN_SUBTHREAD}`,
     });
   };
 
   onPressSecret = () => {
     const threadInfo = this.props.route.params.threadInfo;
     this.props.navigation.navigate<'ComposeSubchannel'>({
       name: ComposeSubchannelRouteName,
       params: {
         threadType: threadTypes.COMMUNITY_SECRET_SUBTHREAD,
         parentThreadInfo: threadInfo,
       },
       key:
         `${ComposeSubchannelRouteName}|` +
         `${threadInfo.id}|${threadTypes.COMMUNITY_SECRET_SUBTHREAD}`,
     });
   };
 }
 
 const unboundStyles = {
   forwardIcon: {
     color: 'modalForegroundSecondaryLabel',
     paddingLeft: 10,
   },
   modal: {
     flex: 0,
   },
   option: {
     alignItems: 'center',
     flexDirection: 'row',
     paddingHorizontal: 10,
     paddingVertical: 20,
   },
   optionExplanation: {
     color: 'modalBackgroundLabel',
     flex: 1,
     fontSize: 14,
     paddingLeft: 20,
     textAlign: 'center',
   },
   optionText: {
     color: 'modalBackgroundLabel',
     fontSize: 20,
     paddingLeft: 5,
   },
   visibility: {
     color: 'modalBackgroundLabel',
     fontSize: 24,
     textAlign: 'center',
   },
   visibilityIcon: {
     color: 'modalBackgroundLabel',
     paddingRight: 3,
   },
 };
 
 const ConnectedComposeSubchannelModal: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedComposeSubchannelModal(
     props: BaseProps,
   ) {
     const styles = useStyles(unboundStyles);
     const colors = useColors();
 
     return (
       <ComposeSubchannelModal {...props} styles={styles} colors={colors} />
     );
   });
 
 export default ConnectedComposeSubchannelModal;
diff --git a/native/chat/settings/thread-settings-child-thread.react.js b/native/chat/settings/thread-settings-child-thread.react.js
index 706e75aeb..73029bd2d 100644
--- a/native/chat/settings/thread-settings-child-thread.react.js
+++ b/native/chat/settings/thread-settings-child-thread.react.js
@@ -1,83 +1,84 @@
 // @flow
 
 import * as React from 'react';
 import { View, Platform } from 'react-native';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import ThreadAvatar from '../../avatars/thread-avatar.react.js';
 import Button from '../../components/button.react.js';
 import ThreadIcon from '../../components/thread-icon.react.js';
 import ThreadPill from '../../components/thread-pill.react.js';
 import { useColors, useStyles } from '../../themes/colors.js';
 import { useNavigateToThread } from '../message-list-types.js';
 
 type Props = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +firstListItem: boolean,
   +lastListItem: boolean,
 };
 function ThreadSettingsChildThread(props: Props): React.Node {
   const { threadInfo } = props;
 
   const navigateToThread = useNavigateToThread();
   const onPress = React.useCallback(() => {
     navigateToThread({ threadInfo });
   }, [threadInfo, navigateToThread]);
 
   const styles = useStyles(unboundStyles);
   const colors = useColors();
 
   const firstItem = props.firstListItem ? null : styles.topBorder;
   const lastItem = props.lastListItem ? styles.lastButton : null;
   return (
     <View style={styles.container}>
       <Button onPress={onPress} style={[styles.button, firstItem, lastItem]}>
         <View style={styles.leftSide}>
           <View style={styles.avatarContainer}>
             <ThreadAvatar size="S" threadInfo={threadInfo} />
           </View>
           <ThreadPill threadInfo={threadInfo} />
         </View>
         <ThreadIcon
           threadType={threadInfo.type}
           color={colors.panelForegroundSecondaryLabel}
         />
       </Button>
     </View>
   );
 }
 
 const unboundStyles = {
   avatarContainer: {
     marginRight: 8,
   },
   button: {
     flex: 1,
     flexDirection: 'row',
     paddingVertical: 8,
     paddingLeft: 12,
     paddingRight: 10,
     alignItems: 'center',
   },
   topBorder: {
     borderColor: 'panelForegroundBorder',
     borderTopWidth: 1,
   },
   container: {
     backgroundColor: 'panelForeground',
     flex: 1,
     paddingHorizontal: 12,
   },
   lastButton: {
     paddingBottom: Platform.OS === 'ios' ? 12 : 10,
     paddingTop: 8,
   },
   leftSide: {
     flex: 1,
     flexDirection: 'row',
     alignItems: 'center',
   },
 };
 
 export default ThreadSettingsChildThread;
diff --git a/native/chat/settings/thread-settings-member-tooltip-modal.react.js b/native/chat/settings/thread-settings-member-tooltip-modal.react.js
index 5ab148c22..07da4909e 100644
--- a/native/chat/settings/thread-settings-member-tooltip-modal.react.js
+++ b/native/chat/settings/thread-settings-member-tooltip-modal.react.js
@@ -1,111 +1,115 @@
 // @flow
 
 import * as React from 'react';
 
 import { useRemoveUsersFromThread } from 'lib/actions/thread-actions.js';
 import { removeMemberFromThread } from 'lib/shared/thread-utils.js';
 import { stringForUser } from 'lib/shared/user-utils.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo, RelativeMemberInfo } from 'lib/types/thread-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 
 import ThreadSettingsMemberTooltipButton from './thread-settings-member-tooltip-button.react.js';
 import type { AppNavigationProp } from '../../navigation/app-navigator.react';
 import { ChangeRolesScreenRouteName } from '../../navigation/route-names.js';
 import {
   createTooltip,
   type TooltipParams,
   type TooltipRoute,
   type BaseTooltipProps,
   type TooltipMenuProps,
 } from '../../tooltip/tooltip.react.js';
 import Alert from '../../utils/alert.js';
 
 export type ThreadSettingsMemberTooltipModalParams = TooltipParams<{
-  +memberInfo: RelativeMemberInfo,
-  +threadInfo: ThreadInfo,
+  +memberInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 }>;
 
 function useOnRemoveUser(
   route: TooltipRoute<'ThreadSettingsMemberTooltipModal'>,
 ) {
   const { memberInfo, threadInfo } = route.params;
   const boundRemoveUsersFromThread = useRemoveUsersFromThread();
   const dispatchActionPromise = useDispatchActionPromise();
 
   const onConfirmRemoveUser = React.useCallback(
     () =>
       removeMemberFromThread(
         threadInfo,
         memberInfo,
         dispatchActionPromise,
         boundRemoveUsersFromThread,
       ),
     [threadInfo, memberInfo, dispatchActionPromise, boundRemoveUsersFromThread],
   );
 
   const userText = stringForUser(memberInfo);
   return React.useCallback(() => {
     Alert.alert(
       'Confirm removal',
       `Are you sure you want to remove ${userText} from this chat?`,
       [
         { text: 'Cancel', style: 'cancel' },
         { text: 'OK', onPress: onConfirmRemoveUser },
       ],
       { cancelable: true },
     );
   }, [onConfirmRemoveUser, userText]);
 }
 
 function useOnChangeRole(
   route: TooltipRoute<'ThreadSettingsMemberTooltipModal'>,
   navigation: AppNavigationProp<'ThreadSettingsMemberTooltipModal'>,
 ) {
   const { threadInfo, memberInfo } = route.params;
   return React.useCallback(() => {
     navigation.navigate<'ChangeRolesScreen'>({
       name: ChangeRolesScreenRouteName,
       params: {
         threadInfo,
         memberInfo,
         role: memberInfo.role,
       },
       key: route.key,
     });
   }, [navigation, route.key, threadInfo, memberInfo]);
 }
 
 function TooltipMenu(
   props: TooltipMenuProps<'ThreadSettingsMemberTooltipModal'>,
 ): React.Node {
   const { route, navigation, tooltipItem: TooltipItem } = props;
 
   const onChangeRole = useOnChangeRole(route, navigation);
   const onRemoveUser = useOnRemoveUser(route);
 
   return (
     <>
       <TooltipItem
         id="change_role"
         text="Change role"
         onPress={onChangeRole}
         key="change_role"
       />
       <TooltipItem
         id="remove_user"
         text="Remove user"
         onPress={onRemoveUser}
         key="remove_user"
       />
     </>
   );
 }
 
 const ThreadSettingsMemberTooltipModal: React.ComponentType<
   BaseTooltipProps<'ThreadSettingsMemberTooltipModal'>,
 > = createTooltip<'ThreadSettingsMemberTooltipModal'>(
   ThreadSettingsMemberTooltipButton,
   TooltipMenu,
 );
 
 export default ThreadSettingsMemberTooltipModal;
diff --git a/native/chat/settings/thread-settings-member.react.js b/native/chat/settings/thread-settings-member.react.js
index 674e313fe..11c3de21f 100644
--- a/native/chat/settings/thread-settings-member.react.js
+++ b/native/chat/settings/thread-settings-member.react.js
@@ -1,302 +1,306 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import {
   View,
   Text,
   Platform,
   ActivityIndicator,
   TouchableOpacity,
 } from 'react-native';
 
 import {
   removeUsersFromThreadActionTypes,
   changeThreadMemberRolesActionTypes,
 } from 'lib/actions/thread-actions.js';
 import { useENSNames } from 'lib/hooks/ens-cache.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import { getAvailableThreadMemberActions } from 'lib/shared/thread-utils.js';
 import { stringForUser } from 'lib/shared/user-utils.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import {
   type ThreadInfo,
   type RelativeMemberInfo,
 } from 'lib/types/thread-types.js';
 import { useRolesFromCommunityThreadInfo } from 'lib/utils/role-utils.js';
 
 import type { ThreadSettingsNavigate } from './thread-settings.react.js';
 import UserAvatar from '../../avatars/user-avatar.react.js';
 import PencilIcon from '../../components/pencil-icon.react.js';
 import SingleLine from '../../components/single-line.react.js';
 import {
   type KeyboardState,
   KeyboardContext,
 } from '../../keyboard/keyboard-state.js';
 import {
   OverlayContext,
   type OverlayContextType,
 } from '../../navigation/overlay-context.js';
 import { ThreadSettingsMemberTooltipModalRouteName } from '../../navigation/route-names.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import { type Colors, useColors, useStyles } from '../../themes/colors.js';
 import type { VerticalBounds } from '../../types/layout-types.js';
 import { useNavigateToUserProfileBottomSheet } from '../../user-profile/user-profile-utils.js';
 
 type BaseProps = {
-  +memberInfo: RelativeMemberInfo,
-  +threadInfo: ThreadInfo,
+  +memberInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +canEdit: boolean,
   +navigate: ThreadSettingsNavigate,
   +firstListItem: boolean,
   +lastListItem: boolean,
   +verticalBounds: ?VerticalBounds,
   +threadSettingsRouteKey: string,
 };
 type Props = {
   ...BaseProps,
   // Redux state
   +roleName: ?string,
   +removeUserLoadingStatus: LoadingStatus,
   +changeRoleLoadingStatus: LoadingStatus,
   +colors: Colors,
   +styles: typeof unboundStyles,
   // withKeyboardState
   +keyboardState: ?KeyboardState,
   // withOverlayContext
   +overlayContext: ?OverlayContextType,
   +navigateToUserProfileBottomSheet: (userID: string) => mixed,
 };
 class ThreadSettingsMember extends React.PureComponent<Props> {
   editButton: ?React.ElementRef<typeof View>;
 
   render() {
     const userText = stringForUser(this.props.memberInfo);
 
     let usernameInfo = null;
     if (this.props.memberInfo.username) {
       usernameInfo = (
         <SingleLine style={this.props.styles.username}>{userText}</SingleLine>
       );
     } else {
       usernameInfo = (
         <SingleLine
           style={[this.props.styles.username, this.props.styles.anonymous]}
         >
           {userText}
         </SingleLine>
       );
     }
 
     let editButton = null;
     if (
       this.props.removeUserLoadingStatus === 'loading' ||
       this.props.changeRoleLoadingStatus === 'loading'
     ) {
       editButton = (
         <ActivityIndicator
           size="small"
           color={this.props.colors.panelForegroundSecondaryLabel}
         />
       );
     } else if (
       getAvailableThreadMemberActions(
         this.props.memberInfo,
         this.props.threadInfo,
         this.props.canEdit,
       ).length !== 0
     ) {
       editButton = (
         <TouchableOpacity
           onPress={this.onPressEdit}
           style={this.props.styles.editButton}
         >
           <View onLayout={this.onEditButtonLayout} ref={this.editButtonRef}>
             <PencilIcon />
           </View>
         </TouchableOpacity>
       );
     }
 
     const roleInfo = (
       <View style={this.props.styles.row}>
         <Text style={this.props.styles.role} numberOfLines={1}>
           {this.props.roleName}
         </Text>
       </View>
     );
 
     const firstItem = this.props.firstListItem
       ? null
       : this.props.styles.topBorder;
     const lastItem = this.props.lastListItem
       ? this.props.styles.lastContainer
       : null;
     return (
       <TouchableOpacity
         onPress={this.onPressUser}
         style={[this.props.styles.container, firstItem, lastItem]}
       >
         <View style={this.props.styles.row}>
           <View style={this.props.styles.userInfoContainer}>
             <UserAvatar size="S" userID={this.props.memberInfo.id} />
             {usernameInfo}
           </View>
           {editButton}
         </View>
         {roleInfo}
       </TouchableOpacity>
     );
   }
 
   onPressUser = () => {
     this.props.navigateToUserProfileBottomSheet(this.props.memberInfo.id);
   };
 
   editButtonRef = (editButton: ?React.ElementRef<typeof View>) => {
     this.editButton = editButton;
   };
 
   onEditButtonLayout = () => {};
 
   onPressEdit = () => {
     if (this.dismissKeyboardIfShowing()) {
       return;
     }
 
     const {
       editButton,
       props: { verticalBounds },
     } = this;
     if (!editButton || !verticalBounds) {
       return;
     }
 
     const { overlayContext } = this.props;
     invariant(
       overlayContext,
       'ThreadSettingsMember should have OverlayContext',
     );
     overlayContext.setScrollBlockingModalStatus('open');
 
     editButton.measure((x, y, width, height, pageX, pageY) => {
       const coordinates = { x: pageX, y: pageY, width, height };
       this.props.navigate<'ThreadSettingsMemberTooltipModal'>({
         name: ThreadSettingsMemberTooltipModalRouteName,
         params: {
           presentedFrom: this.props.threadSettingsRouteKey,
           initialCoordinates: coordinates,
           verticalBounds,
           visibleEntryIDs: getAvailableThreadMemberActions(
             this.props.memberInfo,
             this.props.threadInfo,
             this.props.canEdit,
           ),
           memberInfo: this.props.memberInfo,
           threadInfo: this.props.threadInfo,
         },
       });
     });
   };
 
   dismissKeyboardIfShowing = () => {
     const { keyboardState } = this.props;
     return !!(keyboardState && keyboardState.dismissKeyboardIfShowing());
   };
 }
 
 const unboundStyles = {
   container: {
     backgroundColor: 'panelForeground',
     flex: 1,
     paddingHorizontal: 24,
     paddingVertical: 8,
   },
   editButton: {
     paddingLeft: 10,
   },
   topBorder: {
     borderColor: 'panelForegroundBorder',
     borderTopWidth: 1,
   },
   lastContainer: {
     paddingBottom: Platform.OS === 'ios' ? 12 : 10,
   },
   role: {
     color: 'panelForegroundTertiaryLabel',
     flex: 1,
     fontSize: 14,
     paddingTop: 4,
   },
   row: {
     flex: 1,
     flexDirection: 'row',
   },
   userInfoContainer: {
     flex: 1,
     flexDirection: 'row',
     alignItems: 'center',
   },
   username: {
     color: 'panelForegroundSecondaryLabel',
     flex: 1,
     fontSize: 16,
     lineHeight: 20,
     marginLeft: 8,
   },
   anonymous: {
     color: 'panelForegroundTertiaryLabel',
     fontStyle: 'italic',
   },
 };
 
 const ConnectedThreadSettingsMember: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedThreadSettingsMember(
     props: BaseProps,
   ) {
     const memberID = props.memberInfo.id;
     const removeUserLoadingStatus = useSelector(state =>
       createLoadingStatusSelector(
         removeUsersFromThreadActionTypes,
         `${removeUsersFromThreadActionTypes.started}:${memberID}`,
       )(state),
     );
     const changeRoleLoadingStatus = useSelector(state =>
       createLoadingStatusSelector(
         changeThreadMemberRolesActionTypes,
         `${changeThreadMemberRolesActionTypes.started}:${memberID}`,
       )(state),
     );
 
     const [memberInfo] = useENSNames([props.memberInfo]);
 
     const colors = useColors();
     const styles = useStyles(unboundStyles);
     const keyboardState = React.useContext(KeyboardContext);
     const overlayContext = React.useContext(OverlayContext);
 
     const navigateToUserProfileBottomSheet =
       useNavigateToUserProfileBottomSheet();
 
     const roles = useRolesFromCommunityThreadInfo(props.threadInfo, [
       props.memberInfo,
     ]);
     const roleName = roles.get(props.memberInfo.id)?.name;
 
     return (
       <ThreadSettingsMember
         {...props}
         memberInfo={memberInfo}
         roleName={roleName}
         removeUserLoadingStatus={removeUserLoadingStatus}
         changeRoleLoadingStatus={changeRoleLoadingStatus}
         colors={colors}
         styles={styles}
         keyboardState={keyboardState}
         overlayContext={overlayContext}
         navigateToUserProfileBottomSheet={navigateToUserProfileBottomSheet}
       />
     );
   });
 
 export default ConnectedThreadSettingsMember;
diff --git a/native/chat/settings/thread-settings-parent.react.js b/native/chat/settings/thread-settings-parent.react.js
index 9fbc9ea2e..4559ed1ca 100644
--- a/native/chat/settings/thread-settings-parent.react.js
+++ b/native/chat/settings/thread-settings-parent.react.js
@@ -1,116 +1,116 @@
 // @flow
 
 import * as React from 'react';
 import { Text, View } from 'react-native';
 
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import ThreadAvatar from '../../avatars/thread-avatar.react.js';
 import Button from '../../components/button.react.js';
 import ThreadPill from '../../components/thread-pill.react.js';
 import { useStyles } from '../../themes/colors.js';
 import { useNavigateToThread } from '../message-list-types.js';
 
 type ParentButtonProps = {
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function ParentButton(props: ParentButtonProps): React.Node {
   const styles = useStyles(unboundStyles);
 
   const navigateToThread = useNavigateToThread();
 
   const onPressParentThread = React.useCallback(() => {
     navigateToThread({ threadInfo: props.parentThreadInfo });
   }, [props.parentThreadInfo, navigateToThread]);
 
   return (
     <Button onPress={onPressParentThread} style={styles.parentContainer}>
       <View style={styles.avatarContainer}>
         <ThreadAvatar size="S" threadInfo={props.parentThreadInfo} />
       </View>
       <ThreadPill threadInfo={props.parentThreadInfo} />
     </Button>
   );
 }
 
 type ThreadSettingsParentProps = {
   +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
-  +parentThreadInfo: ?ThreadInfo,
+  +parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 };
 function ThreadSettingsParent(props: ThreadSettingsParentProps): React.Node {
   const { threadInfo, parentThreadInfo } = props;
   const styles = useStyles(unboundStyles);
 
   let parent;
   if (parentThreadInfo) {
     parent = <ParentButton parentThreadInfo={parentThreadInfo} />;
   } else if (threadInfo.parentThreadID) {
     parent = (
       <Text
         style={[styles.currentValue, styles.currentValueText, styles.noParent]}
         numberOfLines={1}
       >
         Secret parent
       </Text>
     );
   } else {
     parent = (
       <Text
         style={[styles.currentValue, styles.currentValueText, styles.noParent]}
         numberOfLines={1}
       >
         No parent
       </Text>
     );
   }
 
   return (
     <View style={styles.row}>
       <Text style={styles.label} numberOfLines={1}>
         Parent
       </Text>
       {parent}
     </View>
   );
 }
 
 const unboundStyles = {
   avatarContainer: {
     marginRight: 8,
   },
   currentValue: {
     flex: 1,
   },
   currentValueText: {
     color: 'panelForegroundSecondaryLabel',
     fontFamily: 'Arial',
     fontSize: 16,
     margin: 0,
     paddingRight: 0,
   },
   label: {
     color: 'panelForegroundTertiaryLabel',
     fontSize: 16,
     width: 96,
   },
   noParent: {
     fontStyle: 'italic',
     paddingLeft: 2,
   },
   parentContainer: {
     flexDirection: 'row',
   },
   row: {
     backgroundColor: 'panelForeground',
     flexDirection: 'row',
     paddingHorizontal: 24,
     paddingVertical: 4,
     alignItems: 'center',
   },
 };
 
 const ConnectedThreadSettingsParent: React.ComponentType<ThreadSettingsParentProps> =
   React.memo<ThreadSettingsParentProps>(ThreadSettingsParent);
 
 export default ConnectedThreadSettingsParent;
diff --git a/native/chat/settings/thread-settings.react.js b/native/chat/settings/thread-settings.react.js
index 46869787b..0e4fa9b0c 100644
--- a/native/chat/settings/thread-settings.react.js
+++ b/native/chat/settings/thread-settings.react.js
@@ -1,1266 +1,1279 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import { View, Platform } from 'react-native';
 import { FlatList } from 'react-native-gesture-handler';
 import { createSelector } from 'reselect';
 import tinycolor from 'tinycolor2';
 
 import {
   changeThreadSettingsActionTypes,
   leaveThreadActionTypes,
   removeUsersFromThreadActionTypes,
   changeThreadMemberRolesActionTypes,
 } from 'lib/actions/thread-actions.js';
 import { usePromoteSidebar } from 'lib/hooks/promote-sidebar.react.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import {
   threadInfoSelector,
   childThreadInfos,
 } from 'lib/selectors/thread-selectors.js';
 import { getAvailableRelationshipButtons } from 'lib/shared/relationship-utils.js';
 import {
   threadHasPermission,
   viewerIsMember,
   threadInChatList,
   getSingleOtherUser,
   threadIsChannel,
 } from 'lib/shared/thread-utils.js';
 import threadWatcher from 'lib/shared/thread-watcher.js';
 import type {
+  MinimallyEncodedRelativeMemberInfo,
   MinimallyEncodedResolvedThreadInfo,
   MinimallyEncodedThreadInfo,
 } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { RelationshipButton } from 'lib/types/relationship-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import {
   type ThreadInfo,
   type ResolvedThreadInfo,
   type RelativeMemberInfo,
 } from 'lib/types/thread-types.js';
 import type { UserInfos } from 'lib/types/user-types.js';
 import {
   useResolvedThreadInfo,
   useResolvedOptionalThreadInfo,
   useResolvedOptionalThreadInfos,
 } from 'lib/utils/entity-helpers.js';
 
 import ThreadSettingsAvatar from './thread-settings-avatar.react.js';
 import type { CategoryType } from './thread-settings-category.react.js';
 import {
   ThreadSettingsCategoryHeader,
   ThreadSettingsCategoryActionHeader,
   ThreadSettingsCategoryFooter,
 } from './thread-settings-category.react.js';
 import ThreadSettingsChildThread from './thread-settings-child-thread.react.js';
 import ThreadSettingsColor from './thread-settings-color.react.js';
 import ThreadSettingsDeleteThread from './thread-settings-delete-thread.react.js';
 import ThreadSettingsDescription from './thread-settings-description.react.js';
 import ThreadSettingsEditRelationship from './thread-settings-edit-relationship.react.js';
 import ThreadSettingsHomeNotifs from './thread-settings-home-notifs.react.js';
 import ThreadSettingsLeaveThread from './thread-settings-leave-thread.react.js';
 import {
   ThreadSettingsSeeMore,
   ThreadSettingsAddMember,
   ThreadSettingsAddSubchannel,
 } from './thread-settings-list-action.react.js';
 import ThreadSettingsMediaGallery from './thread-settings-media-gallery.react.js';
 import ThreadSettingsMember from './thread-settings-member.react.js';
 import ThreadSettingsName from './thread-settings-name.react.js';
 import ThreadSettingsParent from './thread-settings-parent.react.js';
 import ThreadSettingsPromoteSidebar from './thread-settings-promote-sidebar.react.js';
 import ThreadSettingsPushNotifs from './thread-settings-push-notifs.react.js';
 import ThreadSettingsVisibility from './thread-settings-visibility.react.js';
 import ThreadAncestors from '../../components/thread-ancestors.react.js';
 import {
   type KeyboardState,
   KeyboardContext,
 } from '../../keyboard/keyboard-state.js';
 import { defaultStackScreenOptions } from '../../navigation/options.js';
 import {
   OverlayContext,
   type OverlayContextType,
 } from '../../navigation/overlay-context.js';
 import {
   AddUsersModalRouteName,
   ComposeSubchannelModalRouteName,
   FullScreenThreadMediaGalleryRouteName,
 } from '../../navigation/route-names.js';
 import type { NavigationRoute } from '../../navigation/route-names.js';
 import type { TabNavigationProp } from '../../navigation/tab-navigator.react.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import type { AppState } from '../../redux/state-types.js';
 import {
   useStyles,
   type IndicatorStyle,
   useIndicatorStyle,
 } from '../../themes/colors.js';
 import type { VerticalBounds } from '../../types/layout-types.js';
 import type { ViewStyle } from '../../types/styles.js';
 import type { ChatNavigationProp } from '../chat.react.js';
 
 const itemPageLength = 5;
 
 export type ThreadSettingsParams = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 export type ThreadSettingsNavigate = $PropertyType<
   ChatNavigationProp<'ThreadSettings'>,
   'navigate',
 >;
 
 type ChatSettingsItem =
   | {
       +itemType: 'header',
       +key: string,
       +title: string,
       +categoryType: CategoryType,
     }
   | {
       +itemType: 'actionHeader',
       +key: string,
       +title: string,
       +actionText: string,
       +onPress: () => void,
     }
   | {
       +itemType: 'footer',
       +key: string,
       +categoryType: CategoryType,
     }
   | {
       +itemType: 'avatar',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +canChangeSettings: boolean,
     }
   | {
       +itemType: 'name',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +nameEditValue: ?string,
       +canChangeSettings: boolean,
     }
   | {
       +itemType: 'color',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +colorEditValue: string,
       +canChangeSettings: boolean,
       +navigate: ThreadSettingsNavigate,
       +threadSettingsRouteKey: string,
     }
   | {
       +itemType: 'description',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +descriptionEditValue: ?string,
       +descriptionTextHeight: ?number,
       +canChangeSettings: boolean,
     }
   | {
       +itemType: 'parent',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
-      +parentThreadInfo: ?ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+      +parentThreadInfo:
+        | ?ResolvedThreadInfo
+        | ?MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'visibility',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'pushNotifs',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'homeNotifs',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
     }
   | {
       +itemType: 'seeMore',
       +key: string,
       +onPress: () => void,
     }
   | {
       +itemType: 'childThread',
       +key: string,
-      +threadInfo: ResolvedThreadInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +firstListItem: boolean,
       +lastListItem: boolean,
     }
   | {
       +itemType: 'addSubchannel',
       +key: string,
     }
   | {
       +itemType: 'member',
       +key: string,
-      +memberInfo: RelativeMemberInfo,
-      +threadInfo: ResolvedThreadInfo,
+      +memberInfo: RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+      +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +canEdit: boolean,
       +navigate: ThreadSettingsNavigate,
       +firstListItem: boolean,
       +lastListItem: boolean,
       +verticalBounds: ?VerticalBounds,
       +threadSettingsRouteKey: string,
     }
   | {
       +itemType: 'addMember',
       +key: string,
     }
   | {
       +itemType: 'mediaGallery',
       +key: string,
       +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
       +limit: number,
       +verticalBounds: ?VerticalBounds,
     }
   | {
       +itemType: 'promoteSidebar' | 'leaveThread' | 'deleteThread',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +navigate: ThreadSettingsNavigate,
       +buttonStyle: ViewStyle,
     }
   | {
       +itemType: 'editRelationship',
       +key: string,
       +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       +navigate: ThreadSettingsNavigate,
       +buttonStyle: ViewStyle,
       +relationshipButton: RelationshipButton,
     };
 
 type BaseProps = {
   +navigation: ChatNavigationProp<'ThreadSettings'>,
   +route: NavigationRoute<'ThreadSettings'>,
 };
 type Props = {
   ...BaseProps,
   // Redux state
   +userInfos: UserInfos,
   +viewerID: ?string,
-  +threadInfo: ResolvedThreadInfo,
-  +parentThreadInfo: ?ResolvedThreadInfo,
+  +threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+  +parentThreadInfo: ?ResolvedThreadInfo | ?MinimallyEncodedResolvedThreadInfo,
   +childThreadInfos: ?$ReadOnlyArray<ResolvedThreadInfo>,
   +somethingIsSaving: boolean,
   +styles: typeof unboundStyles,
   +indicatorStyle: IndicatorStyle,
   // withOverlayContext
   +overlayContext: ?OverlayContextType,
   // withKeyboardState
   +keyboardState: ?KeyboardState,
   +canPromoteSidebar: boolean,
 };
 type State = {
   +numMembersShowing: number,
   +numSubchannelsShowing: number,
   +numSidebarsShowing: number,
   +nameEditValue: ?string,
   +descriptionEditValue: ?string,
   +descriptionTextHeight: ?number,
   +colorEditValue: string,
   +verticalBounds: ?VerticalBounds,
 };
 type PropsAndState = { ...Props, ...State };
 class ThreadSettings extends React.PureComponent<Props, State> {
   flatListContainer: ?React.ElementRef<typeof View>;
 
   constructor(props: Props) {
     super(props);
     this.state = {
       numMembersShowing: itemPageLength,
       numSubchannelsShowing: itemPageLength,
       numSidebarsShowing: itemPageLength,
       nameEditValue: null,
       descriptionEditValue: null,
       descriptionTextHeight: null,
       colorEditValue: props.threadInfo.color,
       verticalBounds: null,
     };
   }
 
   static scrollDisabled(props: Props) {
     const { overlayContext } = props;
     invariant(overlayContext, 'ThreadSettings should have OverlayContext');
     return overlayContext.scrollBlockingModalStatus !== 'closed';
   }
 
   componentDidUpdate(prevProps: Props) {
     const prevThreadInfo = prevProps.threadInfo;
     const newThreadInfo = this.props.threadInfo;
 
     if (
       !tinycolor.equals(newThreadInfo.color, prevThreadInfo.color) &&
       tinycolor.equals(this.state.colorEditValue, prevThreadInfo.color)
     ) {
       this.setState({ colorEditValue: newThreadInfo.color });
     }
 
     if (defaultStackScreenOptions.gestureEnabled) {
       const scrollIsDisabled = ThreadSettings.scrollDisabled(this.props);
       const scrollWasDisabled = ThreadSettings.scrollDisabled(prevProps);
       if (!scrollWasDisabled && scrollIsDisabled) {
         this.props.navigation.setOptions({ gestureEnabled: false });
       } else if (scrollWasDisabled && !scrollIsDisabled) {
         this.props.navigation.setOptions({ gestureEnabled: true });
       }
     }
   }
 
   threadBasicsListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.threadInfo,
     (propsAndState: PropsAndState) => propsAndState.parentThreadInfo,
     (propsAndState: PropsAndState) => propsAndState.nameEditValue,
     (propsAndState: PropsAndState) => propsAndState.colorEditValue,
     (propsAndState: PropsAndState) => propsAndState.descriptionEditValue,
     (propsAndState: PropsAndState) => propsAndState.descriptionTextHeight,
     (propsAndState: PropsAndState) => !propsAndState.somethingIsSaving,
     (propsAndState: PropsAndState) => propsAndState.navigation.navigate,
     (propsAndState: PropsAndState) => propsAndState.route.key,
     (
-      threadInfo: ResolvedThreadInfo,
-      parentThreadInfo: ?ResolvedThreadInfo,
+      threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+      parentThreadInfo:
+        | ?ResolvedThreadInfo
+        | ?MinimallyEncodedResolvedThreadInfo,
       nameEditValue: ?string,
       colorEditValue: string,
       descriptionEditValue: ?string,
       descriptionTextHeight: ?number,
       canStartEditing: boolean,
       navigate: ThreadSettingsNavigate,
       routeKey: string,
     ) => {
       const canEditThreadAvatar = threadHasPermission(
         threadInfo,
         threadPermissions.EDIT_THREAD_AVATAR,
       );
       const canEditThreadName = threadHasPermission(
         threadInfo,
         threadPermissions.EDIT_THREAD_NAME,
       );
       const canEditThreadDescription = threadHasPermission(
         threadInfo,
         threadPermissions.EDIT_THREAD_DESCRIPTION,
       );
       const canEditThreadColor = threadHasPermission(
         threadInfo,
         threadPermissions.EDIT_THREAD_COLOR,
       );
 
       const canChangeAvatar = canEditThreadAvatar && canStartEditing;
       const canChangeName = canEditThreadName && canStartEditing;
       const canChangeDescription = canEditThreadDescription && canStartEditing;
       const canChangeColor = canEditThreadColor && canStartEditing;
 
       const listData: ChatSettingsItem[] = [];
       listData.push({
         itemType: 'header',
         key: 'avatarHeader',
         title: 'Channel Avatar',
         categoryType: 'unpadded',
       });
       listData.push({
         itemType: 'avatar',
         key: 'avatar',
         threadInfo,
         canChangeSettings: canChangeAvatar,
       });
       listData.push({
         itemType: 'footer',
         key: 'avatarFooter',
         categoryType: 'outline',
       });
 
       listData.push({
         itemType: 'header',
         key: 'basicsHeader',
         title: 'Basics',
         categoryType: 'full',
       });
       listData.push({
         itemType: 'name',
         key: 'name',
         threadInfo,
         nameEditValue,
         canChangeSettings: canChangeName,
       });
       listData.push({
         itemType: 'color',
         key: 'color',
         threadInfo,
         colorEditValue,
         canChangeSettings: canChangeColor,
         navigate,
         threadSettingsRouteKey: routeKey,
       });
       listData.push({
         itemType: 'footer',
         key: 'basicsFooter',
         categoryType: 'full',
       });
 
       if (
         (descriptionEditValue !== null && descriptionEditValue !== undefined) ||
         threadInfo.description ||
         canEditThreadDescription
       ) {
         listData.push({
           itemType: 'description',
           key: 'description',
           threadInfo,
           descriptionEditValue,
           descriptionTextHeight,
           canChangeSettings: canChangeDescription,
         });
       }
 
       const isMember = viewerIsMember(threadInfo);
       if (isMember) {
         listData.push({
           itemType: 'header',
           key: 'subscriptionHeader',
           title: 'Subscription',
           categoryType: 'full',
         });
         listData.push({
           itemType: 'pushNotifs',
           key: 'pushNotifs',
           threadInfo,
         });
         if (threadInfo.type !== threadTypes.SIDEBAR) {
           listData.push({
             itemType: 'homeNotifs',
             key: 'homeNotifs',
             threadInfo,
           });
         }
         listData.push({
           itemType: 'footer',
           key: 'subscriptionFooter',
           categoryType: 'full',
         });
       }
 
       listData.push({
         itemType: 'header',
         key: 'privacyHeader',
         title: 'Privacy',
         categoryType: 'full',
       });
       listData.push({
         itemType: 'visibility',
         key: 'visibility',
         threadInfo,
       });
       listData.push({
         itemType: 'parent',
         key: 'parent',
         threadInfo,
         parentThreadInfo,
       });
       listData.push({
         itemType: 'footer',
         key: 'privacyFooter',
         categoryType: 'full',
       });
       return listData;
     },
   );
 
   subchannelsListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.threadInfo,
     (propsAndState: PropsAndState) => propsAndState.navigation.navigate,
     (propsAndState: PropsAndState) => propsAndState.childThreadInfos,
     (propsAndState: PropsAndState) => propsAndState.numSubchannelsShowing,
     (
-      threadInfo: ResolvedThreadInfo,
+      threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       navigate: ThreadSettingsNavigate,
-      childThreads: ?$ReadOnlyArray<ResolvedThreadInfo>,
+      childThreads: ?$ReadOnlyArray<
+        ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+      >,
       numSubchannelsShowing: number,
     ) => {
       const listData: ChatSettingsItem[] = [];
 
       const subchannels = childThreads?.filter(threadIsChannel) ?? [];
       const canCreateSubchannels = threadHasPermission(
         threadInfo,
         threadPermissions.CREATE_SUBCHANNELS,
       );
       if (subchannels.length === 0 && !canCreateSubchannels) {
         return listData;
       }
 
       listData.push({
         itemType: 'header',
         key: 'subchannelHeader',
         title: 'Subchannels',
         categoryType: 'unpadded',
       });
 
       if (canCreateSubchannels) {
         listData.push({
           itemType: 'addSubchannel',
           key: 'addSubchannel',
         });
       }
 
       const numItems = Math.min(numSubchannelsShowing, subchannels.length);
       for (let i = 0; i < numItems; i++) {
         const subchannelInfo = subchannels[i];
         listData.push({
           itemType: 'childThread',
           key: `childThread${subchannelInfo.id}`,
           threadInfo: subchannelInfo,
           firstListItem: i === 0 && !canCreateSubchannels,
           lastListItem: i === numItems - 1 && numItems === subchannels.length,
         });
       }
 
       if (numItems < subchannels.length) {
         listData.push({
           itemType: 'seeMore',
           key: 'seeMoreSubchannels',
           onPress: this.onPressSeeMoreSubchannels,
         });
       }
 
       listData.push({
         itemType: 'footer',
         key: 'subchannelFooter',
         categoryType: 'unpadded',
       });
 
       return listData;
     },
   );
 
   sidebarsListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.navigation.navigate,
     (propsAndState: PropsAndState) => propsAndState.childThreadInfos,
     (propsAndState: PropsAndState) => propsAndState.numSidebarsShowing,
     (
       navigate: ThreadSettingsNavigate,
-      childThreads: ?$ReadOnlyArray<ResolvedThreadInfo>,
+      childThreads: ?$ReadOnlyArray<
+        ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+      >,
       numSidebarsShowing: number,
     ) => {
       const listData: ChatSettingsItem[] = [];
 
       const sidebars =
         childThreads?.filter(
           childThreadInfo => childThreadInfo.type === threadTypes.SIDEBAR,
         ) ?? [];
       if (sidebars.length === 0) {
         return listData;
       }
 
       listData.push({
         itemType: 'header',
         key: 'sidebarHeader',
         title: 'Threads',
         categoryType: 'unpadded',
       });
 
       const numItems = Math.min(numSidebarsShowing, sidebars.length);
       for (let i = 0; i < numItems; i++) {
         const sidebarInfo = sidebars[i];
         listData.push({
           itemType: 'childThread',
           key: `childThread${sidebarInfo.id}`,
           threadInfo: sidebarInfo,
           firstListItem: i === 0,
           lastListItem: i === numItems - 1 && numItems === sidebars.length,
         });
       }
 
       if (numItems < sidebars.length) {
         listData.push({
           itemType: 'seeMore',
           key: 'seeMoreSidebars',
           onPress: this.onPressSeeMoreSidebars,
         });
       }
 
       listData.push({
         itemType: 'footer',
         key: 'sidebarFooter',
         categoryType: 'unpadded',
       });
 
       return listData;
     },
   );
 
   threadMembersListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.threadInfo,
     (propsAndState: PropsAndState) => !propsAndState.somethingIsSaving,
     (propsAndState: PropsAndState) => propsAndState.navigation.navigate,
     (propsAndState: PropsAndState) => propsAndState.route.key,
     (propsAndState: PropsAndState) => propsAndState.numMembersShowing,
     (propsAndState: PropsAndState) => propsAndState.verticalBounds,
     (
-      threadInfo: ResolvedThreadInfo,
+      threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
       canStartEditing: boolean,
       navigate: ThreadSettingsNavigate,
       routeKey: string,
       numMembersShowing: number,
       verticalBounds: ?VerticalBounds,
     ) => {
       const listData: ChatSettingsItem[] = [];
 
       const canAddMembers = threadHasPermission(
         threadInfo,
         threadPermissions.ADD_MEMBERS,
       );
       if (threadInfo.members.length === 0 && !canAddMembers) {
         return listData;
       }
 
       listData.push({
         itemType: 'header',
         key: 'memberHeader',
         title: 'Members',
         categoryType: 'unpadded',
       });
 
       if (canAddMembers) {
         listData.push({
           itemType: 'addMember',
           key: 'addMember',
         });
       }
 
       const numItems = Math.min(numMembersShowing, threadInfo.members.length);
       for (let i = 0; i < numItems; i++) {
         const memberInfo = threadInfo.members[i];
         listData.push({
           itemType: 'member',
           key: `member${memberInfo.id}`,
           memberInfo,
           threadInfo,
           canEdit: canStartEditing,
           navigate,
           firstListItem: i === 0 && !canAddMembers,
           lastListItem:
             i === numItems - 1 && numItems === threadInfo.members.length,
           verticalBounds,
           threadSettingsRouteKey: routeKey,
         });
       }
 
       if (numItems < threadInfo.members.length) {
         listData.push({
           itemType: 'seeMore',
           key: 'seeMoreMembers',
           onPress: this.onPressSeeMoreMembers,
         });
       }
 
       listData.push({
         itemType: 'footer',
         key: 'memberFooter',
         categoryType: 'unpadded',
       });
 
       return listData;
     },
   );
 
   mediaGalleryListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.threadInfo,
     (propsAndState: PropsAndState) => propsAndState.verticalBounds,
     (
       threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
       verticalBounds: ?VerticalBounds,
     ) => {
       const listData: ChatSettingsItem[] = [];
       const limit = 6;
 
       listData.push({
         itemType: 'actionHeader',
         key: 'mediaGalleryHeader',
         title: 'Media Gallery',
         actionText: 'See more',
         onPress: this.onPressSeeMoreMediaGallery,
       });
 
       listData.push({
         itemType: 'mediaGallery',
         key: 'mediaGallery',
         threadInfo,
         limit,
         verticalBounds,
       });
 
       listData.push({
         itemType: 'footer',
         key: 'mediaGalleryFooter',
         categoryType: 'outline',
       });
 
       return listData;
     },
   );
 
   actionsListDataSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.threadInfo,
     (propsAndState: PropsAndState) => propsAndState.parentThreadInfo,
     (propsAndState: PropsAndState) => propsAndState.navigation.navigate,
     (propsAndState: PropsAndState) => propsAndState.styles,
     (propsAndState: PropsAndState) => propsAndState.userInfos,
     (propsAndState: PropsAndState) => propsAndState.viewerID,
     (
-      threadInfo: ResolvedThreadInfo,
-      parentThreadInfo: ?ResolvedThreadInfo,
+      threadInfo: ResolvedThreadInfo | MinimallyEncodedResolvedThreadInfo,
+      parentThreadInfo:
+        | ?ResolvedThreadInfo
+        | ?MinimallyEncodedResolvedThreadInfo,
       navigate: ThreadSettingsNavigate,
       styles: typeof unboundStyles,
       userInfos: UserInfos,
       viewerID: ?string,
     ) => {
       const buttons = [];
 
       if (this.props.canPromoteSidebar) {
         buttons.push({
           itemType: 'promoteSidebar',
           key: 'promoteSidebar',
           threadInfo,
           navigate,
         });
       }
 
       const canLeaveThread = threadHasPermission(
         threadInfo,
         threadPermissions.LEAVE_THREAD,
       );
 
       if (viewerIsMember(threadInfo) && canLeaveThread) {
         buttons.push({
           itemType: 'leaveThread',
           key: 'leaveThread',
           threadInfo,
           navigate,
         });
       }
 
       const canDeleteThread = threadHasPermission(
         threadInfo,
         threadPermissions.DELETE_THREAD,
       );
       if (canDeleteThread) {
         buttons.push({
           itemType: 'deleteThread',
           key: 'deleteThread',
           threadInfo,
           navigate,
         });
       }
 
       const threadIsPersonal = threadInfo.type === threadTypes.PERSONAL;
       if (threadIsPersonal && viewerID) {
         const otherMemberID = getSingleOtherUser(threadInfo, viewerID);
         if (otherMemberID) {
           const otherUserInfo = userInfos[otherMemberID];
           const availableRelationshipActions =
             getAvailableRelationshipButtons(otherUserInfo);
 
           for (const action of availableRelationshipActions) {
             buttons.push({
               itemType: 'editRelationship',
               key: action,
               threadInfo,
               navigate,
               relationshipButton: action,
             });
           }
         }
       }
 
       const listData: ChatSettingsItem[] = [];
       if (buttons.length === 0) {
         return listData;
       }
 
       listData.push({
         itemType: 'header',
         key: 'actionsHeader',
         title: 'Actions',
         categoryType: 'unpadded',
       });
       for (let i = 0; i < buttons.length; i++) {
         // Necessary for Flow...
         if (buttons[i].itemType === 'editRelationship') {
           listData.push({
             ...buttons[i],
             buttonStyle: [
               i === 0 ? null : styles.nonTopButton,
               i === buttons.length - 1 ? styles.lastButton : null,
             ],
           });
         } else {
           listData.push({
             ...buttons[i],
             buttonStyle: [
               i === 0 ? null : styles.nonTopButton,
               i === buttons.length - 1 ? styles.lastButton : null,
             ],
           });
         }
       }
       listData.push({
         itemType: 'footer',
         key: 'actionsFooter',
         categoryType: 'unpadded',
       });
 
       return listData;
     },
   );
 
   listDataSelector = createSelector(
     this.threadBasicsListDataSelector,
     this.subchannelsListDataSelector,
     this.sidebarsListDataSelector,
     this.threadMembersListDataSelector,
     this.mediaGalleryListDataSelector,
     this.actionsListDataSelector,
     (
       threadBasicsListData: ChatSettingsItem[],
       subchannelsListData: ChatSettingsItem[],
       sidebarsListData: ChatSettingsItem[],
       threadMembersListData: ChatSettingsItem[],
       mediaGalleryListData: ChatSettingsItem[],
       actionsListData: ChatSettingsItem[],
     ) => [
       ...threadBasicsListData,
       ...subchannelsListData,
       ...sidebarsListData,
       ...threadMembersListData,
       ...mediaGalleryListData,
       ...actionsListData,
     ],
   );
 
   get listData() {
     return this.listDataSelector({ ...this.props, ...this.state });
   }
 
   render() {
     return (
       <View
         style={this.props.styles.container}
         ref={this.flatListContainerRef}
         onLayout={this.onFlatListContainerLayout}
       >
         <ThreadAncestors threadInfo={this.props.threadInfo} />
         <FlatList
           data={this.listData}
           contentContainerStyle={this.props.styles.flatList}
           renderItem={this.renderItem}
           scrollEnabled={!ThreadSettings.scrollDisabled(this.props)}
           indicatorStyle={this.props.indicatorStyle}
           initialNumToRender={20}
         />
       </View>
     );
   }
 
   flatListContainerRef = (
     flatListContainer: ?React.ElementRef<typeof View>,
   ) => {
     this.flatListContainer = flatListContainer;
   };
 
   onFlatListContainerLayout = () => {
     const { flatListContainer } = this;
     if (!flatListContainer) {
       return;
     }
 
     const { keyboardState } = this.props;
     if (!keyboardState || keyboardState.keyboardShowing) {
       return;
     }
 
     flatListContainer.measure((x, y, width, height, pageX, pageY) => {
       if (
         height === null ||
         height === undefined ||
         pageY === null ||
         pageY === undefined
       ) {
         return;
       }
       this.setState({ verticalBounds: { height, y: pageY } });
     });
   };
 
   // ESLint doesn't recognize that invariant always throws
   // eslint-disable-next-line consistent-return
   renderItem = (row: { item: ChatSettingsItem, ... }) => {
     const item = row.item;
     if (item.itemType === 'header') {
       return (
         <ThreadSettingsCategoryHeader
           type={item.categoryType}
           title={item.title}
         />
       );
     } else if (item.itemType === 'actionHeader') {
       return (
         <ThreadSettingsCategoryActionHeader
           title={item.title}
           actionText={item.actionText}
           onPress={item.onPress}
         />
       );
     } else if (item.itemType === 'footer') {
       return <ThreadSettingsCategoryFooter type={item.categoryType} />;
     } else if (item.itemType === 'avatar') {
       return (
         <ThreadSettingsAvatar
           threadInfo={item.threadInfo}
           canChangeSettings={item.canChangeSettings}
         />
       );
     } else if (item.itemType === 'name') {
       return (
         <ThreadSettingsName
           threadInfo={item.threadInfo}
           nameEditValue={item.nameEditValue}
           setNameEditValue={this.setNameEditValue}
           canChangeSettings={item.canChangeSettings}
         />
       );
     } else if (item.itemType === 'color') {
       return (
         <ThreadSettingsColor
           threadInfo={item.threadInfo}
           colorEditValue={item.colorEditValue}
           setColorEditValue={this.setColorEditValue}
           canChangeSettings={item.canChangeSettings}
           navigate={item.navigate}
           threadSettingsRouteKey={item.threadSettingsRouteKey}
         />
       );
     } else if (item.itemType === 'description') {
       return (
         <ThreadSettingsDescription
           threadInfo={item.threadInfo}
           descriptionEditValue={item.descriptionEditValue}
           setDescriptionEditValue={this.setDescriptionEditValue}
           descriptionTextHeight={item.descriptionTextHeight}
           setDescriptionTextHeight={this.setDescriptionTextHeight}
           canChangeSettings={item.canChangeSettings}
         />
       );
     } else if (item.itemType === 'parent') {
       return (
         <ThreadSettingsParent
           threadInfo={item.threadInfo}
           parentThreadInfo={item.parentThreadInfo}
         />
       );
     } else if (item.itemType === 'visibility') {
       return <ThreadSettingsVisibility threadInfo={item.threadInfo} />;
     } else if (item.itemType === 'pushNotifs') {
       return <ThreadSettingsPushNotifs threadInfo={item.threadInfo} />;
     } else if (item.itemType === 'homeNotifs') {
       return <ThreadSettingsHomeNotifs threadInfo={item.threadInfo} />;
     } else if (item.itemType === 'seeMore') {
       return <ThreadSettingsSeeMore onPress={item.onPress} />;
     } else if (item.itemType === 'childThread') {
       return (
         <ThreadSettingsChildThread
           threadInfo={item.threadInfo}
           firstListItem={item.firstListItem}
           lastListItem={item.lastListItem}
         />
       );
     } else if (item.itemType === 'addSubchannel') {
       return (
         <ThreadSettingsAddSubchannel onPress={this.onPressComposeSubchannel} />
       );
     } else if (item.itemType === 'member') {
       return (
         <ThreadSettingsMember
           memberInfo={item.memberInfo}
           threadInfo={item.threadInfo}
           canEdit={item.canEdit}
           navigate={item.navigate}
           firstListItem={item.firstListItem}
           lastListItem={item.lastListItem}
           verticalBounds={item.verticalBounds}
           threadSettingsRouteKey={item.threadSettingsRouteKey}
         />
       );
     } else if (item.itemType === 'addMember') {
       return <ThreadSettingsAddMember onPress={this.onPressAddMember} />;
     } else if (item.itemType === 'mediaGallery') {
       return (
         <ThreadSettingsMediaGallery
           threadID={item.threadInfo.id}
           limit={item.limit}
           verticalBounds={item.verticalBounds}
         />
       );
     } else if (item.itemType === 'leaveThread') {
       return (
         <ThreadSettingsLeaveThread
           threadInfo={item.threadInfo}
           buttonStyle={item.buttonStyle}
         />
       );
     } else if (item.itemType === 'deleteThread') {
       return (
         <ThreadSettingsDeleteThread
           threadInfo={item.threadInfo}
           navigate={item.navigate}
           buttonStyle={item.buttonStyle}
         />
       );
     } else if (item.itemType === 'promoteSidebar') {
       return (
         <ThreadSettingsPromoteSidebar
           threadInfo={item.threadInfo}
           buttonStyle={item.buttonStyle}
         />
       );
     } else if (item.itemType === 'editRelationship') {
       return (
         <ThreadSettingsEditRelationship
           threadInfo={item.threadInfo}
           relationshipButton={item.relationshipButton}
           buttonStyle={item.buttonStyle}
         />
       );
     } else {
       invariant(false, `unexpected ThreadSettings item type ${item.itemType}`);
     }
   };
 
   setNameEditValue = (value: ?string, callback?: () => void) => {
     this.setState({ nameEditValue: value }, callback);
   };
 
   setColorEditValue = (color: string) => {
     this.setState({ colorEditValue: color });
   };
 
   setDescriptionEditValue = (value: ?string, callback?: () => void) => {
     this.setState({ descriptionEditValue: value }, callback);
   };
 
   setDescriptionTextHeight = (height: number) => {
     this.setState({ descriptionTextHeight: height });
   };
 
   onPressComposeSubchannel = () => {
     this.props.navigation.navigate(ComposeSubchannelModalRouteName, {
       presentedFrom: this.props.route.key,
       threadInfo: this.props.threadInfo,
     });
   };
 
   onPressAddMember = () => {
     this.props.navigation.navigate(AddUsersModalRouteName, {
       presentedFrom: this.props.route.key,
       threadInfo: this.props.threadInfo,
     });
   };
 
   onPressSeeMoreMembers = () => {
     this.setState(prevState => ({
       numMembersShowing: prevState.numMembersShowing + itemPageLength,
     }));
   };
 
   onPressSeeMoreSubchannels = () => {
     this.setState(prevState => ({
       numSubchannelsShowing: prevState.numSubchannelsShowing + itemPageLength,
     }));
   };
 
   onPressSeeMoreSidebars = () => {
     this.setState(prevState => ({
       numSidebarsShowing: prevState.numSidebarsShowing + itemPageLength,
     }));
   };
 
   onPressSeeMoreMediaGallery = () => {
     this.props.navigation.navigate(FullScreenThreadMediaGalleryRouteName, {
       threadInfo: this.props.threadInfo,
     });
   };
 }
 
 const unboundStyles = {
   container: {
     backgroundColor: 'panelBackground',
     flex: 1,
   },
   flatList: {
     paddingVertical: 16,
   },
   nonTopButton: {
     borderColor: 'panelForegroundBorder',
     borderTopWidth: 1,
   },
   lastButton: {
     paddingBottom: Platform.OS === 'ios' ? 14 : 12,
   },
 };
 
 const threadMembersChangeIsSaving = (
   state: AppState,
-  threadMembers: $ReadOnlyArray<RelativeMemberInfo>,
+  threadMembers: $ReadOnlyArray<
+    RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  >,
 ) => {
   for (const threadMember of threadMembers) {
     const removeUserLoadingStatus = createLoadingStatusSelector(
       removeUsersFromThreadActionTypes,
       `${removeUsersFromThreadActionTypes.started}:${threadMember.id}`,
     )(state);
     if (removeUserLoadingStatus === 'loading') {
       return true;
     }
     const changeRoleLoadingStatus = createLoadingStatusSelector(
       changeThreadMemberRolesActionTypes,
       `${changeThreadMemberRolesActionTypes.started}:${threadMember.id}`,
     )(state);
     if (changeRoleLoadingStatus === 'loading') {
       return true;
     }
   }
   return false;
 };
 
 const ConnectedThreadSettings: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedThreadSettings(props: BaseProps) {
     const userInfos = useSelector(state => state.userStore.userInfos);
     const viewerID = useSelector(
       state => state.currentUserInfo && state.currentUserInfo.id,
     );
     const threadID = props.route.params.threadInfo.id;
 
     const reduxThreadInfo: ?ThreadInfo = useSelector(
       state => threadInfoSelector(state)[threadID],
     );
     React.useEffect(() => {
       invariant(
         reduxThreadInfo,
         'ReduxThreadInfo should exist when ThreadSettings is opened',
       );
       // eslint-disable-next-line react-hooks/exhaustive-deps
     }, []);
 
     const { setParams } = props.navigation;
     React.useEffect(() => {
       if (reduxThreadInfo) {
         setParams({ threadInfo: reduxThreadInfo });
       }
     }, [reduxThreadInfo, setParams]);
-    const threadInfo: ThreadInfo =
+    const threadInfo: ThreadInfo | MinimallyEncodedThreadInfo =
       reduxThreadInfo ?? props.route.params.threadInfo;
     const resolvedThreadInfo = useResolvedThreadInfo(threadInfo);
 
     React.useEffect(() => {
       if (threadInChatList(threadInfo)) {
         return undefined;
       }
       threadWatcher.watchID(threadInfo.id);
       return () => {
         threadWatcher.removeID(threadInfo.id);
       };
     }, [threadInfo]);
 
     const parentThreadID = threadInfo.parentThreadID;
     const parentThreadInfo: ?ThreadInfo = useSelector(state =>
       parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
     );
     const resolvedParentThreadInfo =
       useResolvedOptionalThreadInfo(parentThreadInfo);
     const threadMembers = threadInfo.members;
     const boundChildThreadInfos = useSelector(
       state => childThreadInfos(state)[threadID],
     );
     const resolvedChildThreadInfos = useResolvedOptionalThreadInfos(
       boundChildThreadInfos,
     );
 
     const somethingIsSaving = useSelector(state => {
       const editNameLoadingStatus = createLoadingStatusSelector(
         changeThreadSettingsActionTypes,
         `${changeThreadSettingsActionTypes.started}:${threadID}:name`,
       )(state);
 
       const editColorLoadingStatus = createLoadingStatusSelector(
         changeThreadSettingsActionTypes,
         `${changeThreadSettingsActionTypes.started}:${threadID}:color`,
       )(state);
 
       const editDescriptionLoadingStatus = createLoadingStatusSelector(
         changeThreadSettingsActionTypes,
         `${changeThreadSettingsActionTypes.started}:${threadID}:description`,
       )(state);
 
       const leaveThreadLoadingStatus = createLoadingStatusSelector(
         leaveThreadActionTypes,
         `${leaveThreadActionTypes.started}:${threadID}`,
       )(state);
 
       const boundThreadMembersChangeIsSaving = threadMembersChangeIsSaving(
         state,
         threadMembers,
       );
 
       return (
         boundThreadMembersChangeIsSaving ||
         editNameLoadingStatus === 'loading' ||
         editColorLoadingStatus === 'loading' ||
         editDescriptionLoadingStatus === 'loading' ||
         leaveThreadLoadingStatus === 'loading'
       );
     });
 
     const { navigation } = props;
     React.useEffect(() => {
       const tabNavigation: ?TabNavigationProp<'Chat'> = navigation.getParent();
       invariant(tabNavigation, 'ChatNavigator should be within TabNavigator');
 
       const onTabPress = () => {
         if (navigation.isFocused() && !somethingIsSaving) {
           navigation.popToTop();
         }
       };
 
       tabNavigation.addListener('tabPress', onTabPress);
       return () => tabNavigation.removeListener('tabPress', onTabPress);
     }, [navigation, somethingIsSaving]);
 
     const styles = useStyles(unboundStyles);
     const indicatorStyle = useIndicatorStyle();
     const overlayContext = React.useContext(OverlayContext);
     const keyboardState = React.useContext(KeyboardContext);
     const { canPromoteSidebar } = usePromoteSidebar(threadInfo);
 
     return (
       <ThreadSettings
         {...props}
         userInfos={userInfos}
         viewerID={viewerID}
         threadInfo={resolvedThreadInfo}
         parentThreadInfo={resolvedParentThreadInfo}
         childThreadInfos={resolvedChildThreadInfos}
         somethingIsSaving={somethingIsSaving}
         styles={styles}
         indicatorStyle={indicatorStyle}
         overlayContext={overlayContext}
         keyboardState={keyboardState}
         canPromoteSidebar={canPromoteSidebar}
       />
     );
   });
 
 export default ConnectedThreadSettings;
diff --git a/native/chat/sidebar-navigation.js b/native/chat/sidebar-navigation.js
index dcc3ee13a..a05e40bc9 100644
--- a/native/chat/sidebar-navigation.js
+++ b/native/chat/sidebar-navigation.js
@@ -1,129 +1,130 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { ENSCacheContext } from 'lib/components/ens-cache-provider.react.js';
 import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import {
   createPendingSidebar,
   createUnresolvedPendingSidebar,
 } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type {
   ThreadInfo,
   ChatMentionCandidates,
 } from 'lib/types/thread-types.js';
 import type { LoggedInUserInfo } from 'lib/types/user-types.js';
 import type { GetENSNames } from 'lib/utils/ens-helpers.js';
 
 import { ChatContext } from './chat-context.js';
 import { useNavigateToThread } from './message-list-types.js';
 import { getDefaultTextMessageRules } from '../markdown/rules.react.js';
 import type { ChatMessageInfoItemWithHeight } from '../types/chat-types.js';
 
 type GetUnresolvedSidebarThreadInfoInput = {
   +sourceMessage: ChatMessageInfoItemWithHeight,
   +loggedInUserInfo: ?LoggedInUserInfo,
   +chatMentionCandidates: ChatMentionCandidates,
 };
 function getUnresolvedSidebarThreadInfo(
   input: GetUnresolvedSidebarThreadInfoInput,
-): ?ThreadInfo {
+): ?ThreadInfo | ?MinimallyEncodedThreadInfo {
   const { sourceMessage, loggedInUserInfo, chatMentionCandidates } = input;
   const threadCreatedFromMessage = sourceMessage.threadCreatedFromMessage;
   if (threadCreatedFromMessage) {
     return threadCreatedFromMessage;
   }
 
   if (!loggedInUserInfo) {
     return null;
   }
 
   const { messageInfo, threadInfo } = sourceMessage;
   return createUnresolvedPendingSidebar({
     sourceMessageInfo: messageInfo,
     parentThreadInfo: threadInfo,
     loggedInUserInfo,
     markdownRules: getDefaultTextMessageRules(chatMentionCandidates)
       .simpleMarkdownRules,
   });
 }
 
 type GetSidebarThreadInfoInput = {
   ...GetUnresolvedSidebarThreadInfoInput,
   +getENSNames: ?GetENSNames,
 };
 async function getSidebarThreadInfo(
   input: GetSidebarThreadInfoInput,
-): Promise<?ThreadInfo> {
+): Promise<?ThreadInfo | ?MinimallyEncodedThreadInfo> {
   const {
     sourceMessage,
     loggedInUserInfo,
     getENSNames,
     chatMentionCandidates,
   } = input;
   const threadCreatedFromMessage = sourceMessage.threadCreatedFromMessage;
   if (threadCreatedFromMessage) {
     return threadCreatedFromMessage;
   }
 
   if (!loggedInUserInfo) {
     return null;
   }
 
   const { messageInfo, threadInfo } = sourceMessage;
   return await createPendingSidebar({
     sourceMessageInfo: messageInfo,
     parentThreadInfo: threadInfo,
     loggedInUserInfo,
     markdownRules: getDefaultTextMessageRules(chatMentionCandidates)
       .simpleMarkdownRules,
     getENSNames,
   });
 }
 
 function useNavigateToSidebar(
   item: ChatMessageInfoItemWithHeight,
 ): () => mixed {
   const loggedInUserInfo = useLoggedInUserInfo();
   const navigateToThread = useNavigateToThread();
   const cacheContext = React.useContext(ENSCacheContext);
   const chatMentionCandidates = useThreadChatMentionCandidates(item.threadInfo);
   const { getENSNames } = cacheContext;
   return React.useCallback(async () => {
     const threadInfo = await getSidebarThreadInfo({
       sourceMessage: item,
       loggedInUserInfo,
       getENSNames,
       chatMentionCandidates,
     });
     invariant(threadInfo, 'threadInfo should be set');
     navigateToThread({ threadInfo });
   }, [
     item,
     loggedInUserInfo,
     getENSNames,
     chatMentionCandidates,
     navigateToThread,
   ]);
 }
 
 function useAnimatedNavigateToSidebar(
   item: ChatMessageInfoItemWithHeight,
 ): () => void {
   const chatContext = React.useContext(ChatContext);
   const setSidebarSourceID = chatContext?.setCurrentTransitionSidebarSourceID;
   const navigateToSidebar = useNavigateToSidebar(item);
   const messageID = item.messageInfo.id;
   return React.useCallback(() => {
     setSidebarSourceID && setSidebarSourceID(messageID);
     navigateToSidebar();
   }, [setSidebarSourceID, messageID, navigateToSidebar]);
 }
 
 export {
   getUnresolvedSidebarThreadInfo,
   useNavigateToSidebar,
   useAnimatedNavigateToSidebar,
 };
diff --git a/native/chat/thread-settings-button.react.js b/native/chat/thread-settings-button.react.js
index c84b68fdd..e6a49e01d 100644
--- a/native/chat/thread-settings-button.react.js
+++ b/native/chat/thread-settings-button.react.js
@@ -1,61 +1,62 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import type { ChatNavigationProp } from './chat.react.js';
 import Button from '../components/button.react.js';
 import SWMansionIcon from '../components/swmansion-icon.react.js';
 import { ThreadSettingsRouteName } from '../navigation/route-names.js';
 import { useStyles } from '../themes/colors.js';
 
 type BaseProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +navigate: $PropertyType<ChatNavigationProp<'MessageList'>, 'navigate'>,
 };
 type Props = {
   ...BaseProps,
   +styles: typeof unboundStyles,
 };
 
 class ThreadSettingsButton extends React.PureComponent<Props> {
   render() {
     return (
       <Button onPress={this.onPress} androidBorderlessRipple={true}>
         <SWMansionIcon
           name="settings"
           size={24}
           style={this.props.styles.button}
         />
       </Button>
     );
   }
 
   onPress = () => {
     const threadInfo = this.props.threadInfo;
     this.props.navigate<'ThreadSettings'>({
       name: ThreadSettingsRouteName,
       params: { threadInfo },
       key: `${ThreadSettingsRouteName}${threadInfo.id}`,
     });
   };
 }
 
 const unboundStyles = {
   button: {
     color: 'panelForegroundLabel',
     paddingHorizontal: 10,
   },
 };
 
 const ConnectedThreadSettingsButton: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedThreadSettingsButton(
     props: BaseProps,
   ) {
     const styles = useStyles(unboundStyles);
 
     return <ThreadSettingsButton {...props} styles={styles} />;
   });
 
 export default ConnectedThreadSettingsButton;
diff --git a/native/chat/thread-settings-header-title.react.js b/native/chat/thread-settings-header-title.react.js
index 4363867d7..4c5af2a84 100644
--- a/native/chat/thread-settings-header-title.react.js
+++ b/native/chat/thread-settings-header-title.react.js
@@ -1,26 +1,27 @@
 // @flow
 
 import {
   HeaderTitle,
   type HeaderTitleInputProps,
 } from '@react-navigation/elements';
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 import { firstLine } from 'lib/utils/string-utils.js';
 
 type Props = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ...HeaderTitleInputProps,
 };
 function ThreadSettingsHeaderTitle(props: Props): React.Node {
   const { threadInfo, ...rest } = props;
   const { uiName } = useResolvedThreadInfo(threadInfo);
   return <HeaderTitle {...rest}>{firstLine(uiName)}</HeaderTitle>;
 }
 
 const MemoizedThreadSettingsHeaderTitle: React.ComponentType<Props> =
   React.memo<Props>(ThreadSettingsHeaderTitle);
 
 export default MemoizedThreadSettingsHeaderTitle;
diff --git a/native/chat/utils.js b/native/chat/utils.js
index b30a74b53..2aafa8f73 100644
--- a/native/chat/utils.js
+++ b/native/chat/utils.js
@@ -1,445 +1,446 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import Animated from 'react-native-reanimated';
 
 import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import { colorIsDark } from 'lib/shared/color-utils.js';
 import { messageKey } from 'lib/shared/message-utils.js';
 import { viewerIsMember } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import { clusterEndHeight } from './chat-constants.js';
 import { ChatContext, useHeightMeasurer } from './chat-context.js';
 import { failedSendHeight } from './failed-send.react.js';
 import {
   useNativeMessageListData,
   type NativeChatMessageItem,
 } from './message-data.react.js';
 import { authorNameHeight } from './message-header.react.js';
 import { multimediaMessageItemHeight } from './multimedia-message-utils.js';
 import { getUnresolvedSidebarThreadInfo } from './sidebar-navigation.js';
 import textMessageSendFailed from './text-message-send-failed.js';
 import { timestampHeight } from './timestamp.react.js';
 import { KeyboardContext } from '../keyboard/keyboard-state.js';
 import { OverlayContext } from '../navigation/overlay-context.js';
 import {
   MultimediaMessageTooltipModalRouteName,
   RobotextMessageTooltipModalRouteName,
   TextMessageTooltipModalRouteName,
 } from '../navigation/route-names.js';
 import type {
   ChatMessageInfoItemWithHeight,
   ChatMessageItemWithHeight,
   ChatTextMessageInfoItemWithHeight,
 } from '../types/chat-types.js';
 import type {
   LayoutCoordinates,
   VerticalBounds,
 } from '../types/layout-types.js';
 import type { AnimatedViewStyle } from '../types/styles.js';
 
 /* eslint-disable import/no-named-as-default-member */
 const {
   Node,
   Extrapolate,
   interpolateNode,
   interpolateColors,
   block,
   call,
   eq,
   cond,
   sub,
 } = Animated;
 /* eslint-enable import/no-named-as-default-member */
 
 function textMessageItemHeight(
   item: ChatTextMessageInfoItemWithHeight,
 ): number {
   const { messageInfo, contentHeight, startsCluster, endsCluster } = item;
   const { isViewer } = messageInfo.creator;
   let height = 5 + contentHeight; // 5 from marginBottom in ComposedMessage
   if (!isViewer && startsCluster) {
     height += authorNameHeight;
   }
   if (endsCluster) {
     height += clusterEndHeight;
   }
   if (textMessageSendFailed(item)) {
     height += failedSendHeight;
   }
 
   return height;
 }
 
 function messageItemHeight(item: ChatMessageInfoItemWithHeight): number {
   let height = 0;
   if (item.messageShapeType === 'text') {
     height += textMessageItemHeight(item);
   } else if (item.messageShapeType === 'multimedia') {
     height += multimediaMessageItemHeight(item);
   } else {
     height += item.contentHeight;
   }
   if (item.startsConversation) {
     height += timestampHeight;
   }
   return height;
 }
 
 function chatMessageItemHeight(item: ChatMessageItemWithHeight): number {
   if (item.itemType === 'loader') {
     return 56;
   }
   return messageItemHeight(item);
 }
 
 function useMessageTargetParameters(
   sourceMessage: ChatMessageInfoItemWithHeight,
   initialCoordinates: LayoutCoordinates,
   messageListVerticalBounds: VerticalBounds,
   currentInputBarHeight: number,
   targetInputBarHeight: number,
-  sidebarThreadInfo: ?ThreadInfo,
+  sidebarThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 ): {
   +position: number,
   +color: string,
 } {
   const messageListData = useNativeMessageListData({
     searching: false,
     userInfoInputArray: [],
     threadInfo: sidebarThreadInfo,
   });
 
   const [messagesWithHeight, setMessagesWithHeight] =
     React.useState<?$ReadOnlyArray<ChatMessageItemWithHeight>>(null);
   const measureMessages = useHeightMeasurer();
 
   React.useEffect(() => {
     if (messageListData) {
       measureMessages(
         messageListData,
         sidebarThreadInfo,
         setMessagesWithHeight,
       );
     }
   }, [measureMessages, messageListData, sidebarThreadInfo]);
 
   const sourceMessageID = sourceMessage.messageInfo?.id;
   const targetDistanceFromBottom = React.useMemo(() => {
     if (!messagesWithHeight) {
       return 0;
     }
 
     let offset = 0;
     for (const message of messagesWithHeight) {
       offset += chatMessageItemHeight(message);
       if (message.messageInfo && message.messageInfo.id === sourceMessageID) {
         return offset;
       }
     }
 
     return (
       messageListVerticalBounds.height + chatMessageItemHeight(sourceMessage)
     );
   }, [
     messageListVerticalBounds.height,
     messagesWithHeight,
     sourceMessage,
     sourceMessageID,
   ]);
 
   if (!sidebarThreadInfo) {
     return {
       position: 0,
       color: sourceMessage.threadInfo.color,
     };
   }
 
   const authorNameComponentHeight = sourceMessage.messageInfo.creator.isViewer
     ? 0
     : authorNameHeight;
   const currentDistanceFromBottom =
     messageListVerticalBounds.height +
     messageListVerticalBounds.y -
     initialCoordinates.y +
     timestampHeight +
     authorNameComponentHeight +
     currentInputBarHeight;
   return {
     position:
       targetDistanceFromBottom +
       targetInputBarHeight -
       currentDistanceFromBottom,
     color: sidebarThreadInfo.color,
   };
 }
 
 type AnimatedMessageArgs = {
   +sourceMessage: ChatMessageInfoItemWithHeight,
   +initialCoordinates: LayoutCoordinates,
   +messageListVerticalBounds: VerticalBounds,
   +progress: Node,
   +targetInputBarHeight: ?number,
 };
 
 function useAnimatedMessageTooltipButton({
   sourceMessage,
   initialCoordinates,
   messageListVerticalBounds,
   progress,
   targetInputBarHeight,
 }: AnimatedMessageArgs): {
   +style: AnimatedViewStyle,
   +threadColorOverride: ?Node,
   +isThreadColorDarkOverride: ?boolean,
 } {
   const chatContext = React.useContext(ChatContext);
   invariant(chatContext, 'chatContext should be set');
   const {
     currentTransitionSidebarSourceID,
     setCurrentTransitionSidebarSourceID,
     chatInputBarHeights,
     sidebarAnimationType,
     setSidebarAnimationType,
   } = chatContext;
 
   const loggedInUserInfo = useLoggedInUserInfo();
   const chatMentionCandidates = useThreadChatMentionCandidates(
     sourceMessage.threadInfo,
   );
   const sidebarThreadInfo = React.useMemo(
     () =>
       getUnresolvedSidebarThreadInfo({
         sourceMessage,
         loggedInUserInfo,
         chatMentionCandidates,
       }),
     [sourceMessage, loggedInUserInfo, chatMentionCandidates],
   );
 
   const currentInputBarHeight =
     chatInputBarHeights.get(sourceMessage.threadInfo.id) ?? 0;
   const keyboardState = React.useContext(KeyboardContext);
 
   const newSidebarAnimationType =
     !currentInputBarHeight ||
     !targetInputBarHeight ||
     keyboardState?.keyboardShowing ||
     !viewerIsMember(sidebarThreadInfo)
       ? 'fade_source_message'
       : 'move_source_message';
   React.useEffect(() => {
     setSidebarAnimationType(newSidebarAnimationType);
   }, [setSidebarAnimationType, newSidebarAnimationType]);
 
   const { position: targetPosition, color: targetColor } =
     useMessageTargetParameters(
       sourceMessage,
       initialCoordinates,
       messageListVerticalBounds,
       currentInputBarHeight,
       targetInputBarHeight ?? currentInputBarHeight,
       sidebarThreadInfo,
     );
 
   React.useEffect(() => {
     return () => setCurrentTransitionSidebarSourceID(null);
   }, [setCurrentTransitionSidebarSourceID]);
 
   const bottom = React.useMemo(
     () =>
       interpolateNode(progress, {
         inputRange: [0.3, 1],
         outputRange: [targetPosition, 0],
         extrapolate: Extrapolate.CLAMP,
       }),
     [progress, targetPosition],
   );
 
   const [isThreadColorDarkOverride, setThreadColorDarkOverride] =
     React.useState<?boolean>(null);
   const setThreadColorBrightness = React.useCallback(() => {
     const isSourceThreadDark = colorIsDark(sourceMessage.threadInfo.color);
     const isTargetThreadDark = colorIsDark(targetColor);
     if (isSourceThreadDark !== isTargetThreadDark) {
       setThreadColorDarkOverride(isTargetThreadDark);
     }
   }, [sourceMessage.threadInfo.color, targetColor]);
 
   const threadColorOverride = React.useMemo(() => {
     if (
       sourceMessage.messageShapeType !== 'text' ||
       !currentTransitionSidebarSourceID
     ) {
       return null;
     }
     return block([
       cond(eq(progress, 1), call([], setThreadColorBrightness)),
       interpolateColors(progress, {
         inputRange: [0, 1],
         outputColorRange: [
           `#${targetColor}`,
           `#${sourceMessage.threadInfo.color}`,
         ],
       }),
     ]);
   }, [
     currentTransitionSidebarSourceID,
     progress,
     setThreadColorBrightness,
     sourceMessage.messageShapeType,
     sourceMessage.threadInfo.color,
     targetColor,
   ]);
 
   const messageContainerStyle = React.useMemo(() => {
     return {
       bottom: currentTransitionSidebarSourceID ? bottom : 0,
       opacity:
         currentTransitionSidebarSourceID &&
         sidebarAnimationType === 'fade_source_message'
           ? 0
           : 1,
     };
   }, [bottom, currentTransitionSidebarSourceID, sidebarAnimationType]);
 
   return {
     style: messageContainerStyle,
     threadColorOverride,
     isThreadColorDarkOverride,
   };
 }
 
 function getMessageTooltipKey(item: ChatMessageInfoItemWithHeight): string {
   return `tooltip|${messageKey(item.messageInfo)}`;
 }
 
 function isMessageTooltipKey(key: string): boolean {
   return key.startsWith('tooltip|');
 }
 
 function useOverlayPosition(item: ChatMessageInfoItemWithHeight) {
   const overlayContext = React.useContext(OverlayContext);
   invariant(overlayContext, 'should be set');
 
   for (const overlay of overlayContext.visibleOverlays) {
     if (
       (overlay.routeName === MultimediaMessageTooltipModalRouteName ||
         overlay.routeName === TextMessageTooltipModalRouteName ||
         overlay.routeName === RobotextMessageTooltipModalRouteName) &&
       overlay.routeKey === getMessageTooltipKey(item)
     ) {
       return overlay.position;
     }
   }
   return undefined;
 }
 
 function useContentAndHeaderOpacity(
   item: ChatMessageInfoItemWithHeight,
 ): number | Node {
   const overlayPosition = useOverlayPosition(item);
   const chatContext = React.useContext(ChatContext);
   return React.useMemo(
     () =>
       overlayPosition &&
       chatContext?.sidebarAnimationType === 'move_source_message'
         ? sub(
             1,
             interpolateNode(overlayPosition, {
               inputRange: [0.05, 0.06],
               outputRange: [0, 1],
               extrapolate: Extrapolate.CLAMP,
             }),
           )
         : 1,
     [chatContext?.sidebarAnimationType, overlayPosition],
   );
 }
 
 function useDeliveryIconOpacity(
   item: ChatMessageInfoItemWithHeight,
 ): number | Node {
   const overlayPosition = useOverlayPosition(item);
   const chatContext = React.useContext(ChatContext);
   return React.useMemo(() => {
     if (
       !overlayPosition ||
       !chatContext?.currentTransitionSidebarSourceID ||
       chatContext?.sidebarAnimationType === 'fade_source_message'
     ) {
       return 1;
     }
     return interpolateNode(overlayPosition, {
       inputRange: [0.05, 0.06, 1],
       outputRange: [1, 0, 0],
       extrapolate: Extrapolate.CLAMP,
     });
   }, [
     chatContext?.currentTransitionSidebarSourceID,
     chatContext?.sidebarAnimationType,
     overlayPosition,
   ]);
 }
 
 function chatMessageItemKey(
   item: ChatMessageItemWithHeight | NativeChatMessageItem,
 ): string {
   if (item.itemType === 'loader') {
     return 'loader';
   }
   return messageKey(item.messageInfo);
 }
 
 function modifyItemForResultScreen(
   item: ChatMessageInfoItemWithHeight,
 ): ChatMessageInfoItemWithHeight {
   if (item.messageShapeType === 'robotext') {
     return item;
   }
 
   if (item.messageShapeType === 'multimedia') {
     return {
       ...item,
       startsConversation: false,
       startsCluster: true,
       endsCluster: true,
       messageInfo: {
         ...item.messageInfo,
         creator: {
           ...item.messageInfo.creator,
           isViewer: false,
         },
       },
     };
   }
 
   return {
     ...item,
     startsConversation: false,
     startsCluster: true,
     endsCluster: true,
     messageInfo: {
       ...item.messageInfo,
       creator: {
         ...item.messageInfo.creator,
         isViewer: false,
       },
     },
   };
 }
 
 export {
   chatMessageItemKey,
   chatMessageItemHeight,
   useAnimatedMessageTooltipButton,
   messageItemHeight,
   getMessageTooltipKey,
   isMessageTooltipKey,
   useContentAndHeaderOpacity,
   useDeliveryIconOpacity,
   modifyItemForResultScreen,
 };
diff --git a/native/components/community-pill.react.js b/native/components/community-pill.react.js
index 19db27029..5d02019bf 100644
--- a/native/components/community-pill.react.js
+++ b/native/components/community-pill.react.js
@@ -1,68 +1,69 @@
 // @flow
 
 import * as React from 'react';
 import { View, StyleSheet } from 'react-native';
 
 import { useKeyserverAdmin } from 'lib/shared/user-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import CommIcon from './comm-icon.react.js';
 import Pill from './pill.react.js';
 import ThreadPill from './thread-pill.react.js';
 import { useColors } from '../themes/colors.js';
 
 const threadPillRoundCorners = { left: false, right: true };
 
 type Props = {
-  +community: ThreadInfo,
+  +community: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function CommunityPill(props: Props): React.Node {
   const { community } = props;
 
   const keyserverAdmin = useKeyserverAdmin(community);
   const keyserverOperatorUsername = keyserverAdmin?.username;
 
   const colors = useColors();
   const keyserverOperatorLabel: ?React.Node = React.useMemo(() => {
     if (!keyserverOperatorUsername) {
       return undefined;
     }
     const icon = (
       <CommIcon
         name="cloud-filled"
         size={12}
         color={colors.panelForegroundLabel}
       />
     );
     return (
       <Pill
         backgroundColor={colors.codeBackground}
         roundCorners={{ left: true, right: false }}
         label={keyserverOperatorUsername}
         icon={icon}
       />
     );
   }, [
     colors.codeBackground,
     colors.panelForegroundLabel,
     keyserverOperatorUsername,
   ]);
 
   return (
     <View style={styles.container}>
       {keyserverOperatorLabel}
       <ThreadPill
         threadInfo={community}
         roundCorners={threadPillRoundCorners}
       />
     </View>
   );
 }
 
 const styles = StyleSheet.create({
   container: {
     flexDirection: 'row',
   },
 });
 
 export default CommunityPill;
diff --git a/native/components/thread-pill.react.js b/native/components/thread-pill.react.js
index a5a70cfe5..20041a24a 100644
--- a/native/components/thread-pill.react.js
+++ b/native/components/thread-pill.react.js
@@ -1,28 +1,29 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import Pill from './pill.react.js';
 
 type Props = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +roundCorners?: { +left: boolean, +right: boolean },
   +fontSize?: number,
 };
 function ThreadPill(props: Props): React.Node {
   const { threadInfo, roundCorners, fontSize } = props;
   const { uiName } = useResolvedThreadInfo(threadInfo);
   return (
     <Pill
       backgroundColor={`#${threadInfo.color}`}
       label={uiName}
       roundCorners={roundCorners}
       fontSize={fontSize}
     />
   );
 }
 
 export default ThreadPill;
diff --git a/native/input/input-state-container.react.js b/native/input/input-state-container.react.js
index 98e94e461..7dc35e6a5 100644
--- a/native/input/input-state-container.react.js
+++ b/native/input/input-state-container.react.js
@@ -1,1727 +1,1745 @@
 // @flow
 
 import * as FileSystem from 'expo-file-system';
 import invariant from 'invariant';
 import * as React from 'react';
 import { Platform } from 'react-native';
 import { useDispatch } from 'react-redux';
 import { createSelector } from 'reselect';
 
 import {
   createLocalMessageActionType,
   sendMultimediaMessageActionTypes,
   useSendMultimediaMessage,
   sendTextMessageActionTypes,
   useSendTextMessage,
 } from 'lib/actions/message-actions.js';
 import type {
   SendMultimediaMessageInput,
   SendTextMessageInput,
 } from 'lib/actions/message-actions.js';
 import { queueReportsActionType } from 'lib/actions/report-actions.js';
 import { useNewThread } from 'lib/actions/thread-actions.js';
 import {
   uploadMultimedia,
   updateMultimediaMessageMediaActionType,
   useBlobServiceUpload,
   type MultimediaUploadCallbacks,
   type MultimediaUploadExtras,
   type BlobServiceUploadAction,
 } from 'lib/actions/upload-actions.js';
 import commStaffCommunity from 'lib/facts/comm-staff-community.js';
 import { pathFromURI, replaceExtension } from 'lib/media/file-utils.js';
 import {
   isLocalUploadID,
   getNextLocalUploadID,
 } from 'lib/media/media-utils.js';
 import { videoDurationLimit } from 'lib/media/video-utils.js';
 import {
   createLoadingStatusSelector,
   combineLoadingStatuses,
 } from 'lib/selectors/loading-selectors.js';
 import {
   createMediaMessageInfo,
   useNextLocalID,
   useMessageCreationSideEffectsFunc,
 } from 'lib/shared/message-utils.js';
 import type { CreationSideEffectsFunc } from 'lib/shared/messages/message-spec.js';
 import {
   createRealThreadFromPendingThread,
   threadIsPending,
   threadIsPendingSidebar,
   patchThreadInfoToIncludeMentionedMembersOfParent,
   threadInfoInsideCommunity,
 } from 'lib/shared/thread-utils.js';
 import type { CalendarQuery } from 'lib/types/entry-types.js';
 import type {
   UploadMultimediaResult,
   Media,
   NativeMediaSelection,
   MediaMissionResult,
   MediaMission,
 } from 'lib/types/media-types.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import {
   type RawMessageInfo,
   type RawMultimediaMessageInfo,
   type SendMessageResult,
   type SendMessagePayload,
 } from 'lib/types/message-types.js';
 import type { RawImagesMessageInfo } from 'lib/types/messages/images.js';
 import type { RawMediaMessageInfo } from 'lib/types/messages/media.js';
 import { getMediaMessageServerDBContentsFromMedia } from 'lib/types/messages/media.js';
 import type { RawTextMessageInfo } from 'lib/types/messages/text.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import {
   type ClientMediaMissionReportCreationRequest,
   reportTypes,
 } from 'lib/types/report-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import {
   type ClientNewThreadRequest,
   type NewThreadResult,
   type ThreadInfo,
 } from 'lib/types/thread-types.js';
 import {
   type DispatchActionPromise,
   useServerCall,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 import type {
   CallServerEndpointOptions,
   CallServerEndpointResponse,
 } from 'lib/utils/call-server-endpoint.js';
 import { getConfig } from 'lib/utils/config.js';
 import { getMessageForException, cloneError } from 'lib/utils/errors.js';
 import { values } from 'lib/utils/objects.js';
 import {
   generateReportID,
   useIsReportEnabled,
 } from 'lib/utils/report-utils.js';
 
 import {
   type EditInputBarMessageParameters,
   InputStateContext,
   type PendingMultimediaUploads,
   type MultimediaProcessingStep,
 } from './input-state.js';
 import { encryptMedia } from '../media/encryption-utils.js';
 import { disposeTempFile } from '../media/file-utils.js';
 import { processMedia } from '../media/media-utils.js';
 import { displayActionResultModal } from '../navigation/action-result-modal.js';
 import { useCalendarQuery } from '../navigation/nav-selectors.js';
 import { useSelector } from '../redux/redux-utils.js';
 import blobServiceUploadHandler from '../utils/blob-service-upload.js';
 import { useStaffCanSee } from '../utils/staff-utils.js';
 
 type MediaIDs =
   | { +type: 'photo', +localMediaID: string }
   | { +type: 'video', +localMediaID: string, +localThumbnailID: string };
 type UploadFileInput = {
   +selection: NativeMediaSelection,
   +ids: MediaIDs,
 };
 type CompletedUploads = { +[localMessageID: string]: ?Set<string> };
 
 type BaseProps = {
   +children: React.Node,
 };
 type Props = {
   ...BaseProps,
   +viewerID: ?string,
   +nextLocalID: string,
   +messageStoreMessages: { +[id: string]: RawMessageInfo },
   +ongoingMessageCreation: boolean,
   +hasWiFi: boolean,
   +mediaReportsEnabled: boolean,
   +calendarQuery: () => CalendarQuery,
   +dispatch: Dispatch,
   +staffCanSee: boolean,
   +dispatchActionPromise: DispatchActionPromise,
   +uploadMultimedia: (
     multimedia: Object,
     extras: MultimediaUploadExtras,
     callbacks: MultimediaUploadCallbacks,
   ) => Promise<UploadMultimediaResult>,
   +blobServiceUpload: BlobServiceUploadAction,
   +sendMultimediaMessage: (
     input: SendMultimediaMessageInput,
   ) => Promise<SendMessageResult>,
   +sendTextMessage: (input: SendTextMessageInput) => Promise<SendMessageResult>,
   +newThread: (request: ClientNewThreadRequest) => Promise<NewThreadResult>,
   +textMessageCreationSideEffectsFunc: CreationSideEffectsFunc<RawTextMessageInfo>,
 };
 type State = {
   +pendingUploads: PendingMultimediaUploads,
 };
 class InputStateContainer extends React.PureComponent<Props, State> {
   state: State = {
     pendingUploads: {},
   };
   sendCallbacks: Array<() => void> = [];
   activeURIs = new Map();
   editInputBarCallbacks: Array<
     (params: EditInputBarMessageParameters) => void,
   > = [];
   scrollToMessageCallbacks: Array<(messageID: string) => void> = [];
   pendingThreadCreations = new Map<string, Promise<string>>();
-  pendingThreadUpdateHandlers = new Map<string, (ThreadInfo) => mixed>();
+  pendingThreadUpdateHandlers = new Map<
+    string,
+    (ThreadInfo | MinimallyEncodedThreadInfo) => mixed,
+  >();
   // TODO: flip the switch
   // Note that this enables Blob service for encrypted media only
   useBlobServiceUploads = false;
 
   // When the user sends a multimedia message that triggers the creation of a
   // sidebar, the sidebar gets created right away, but the message needs to wait
   // for the uploads to complete before sending. We use this Set to track the
   // message localIDs that need sidebarCreation: true.
   pendingSidebarCreationMessageLocalIDs = new Set<string>();
 
   static getCompletedUploads(props: Props, state: State): CompletedUploads {
     const completedUploads = {};
     for (const localMessageID in state.pendingUploads) {
       const messagePendingUploads = state.pendingUploads[localMessageID];
       const rawMessageInfo = props.messageStoreMessages[localMessageID];
       if (!rawMessageInfo) {
         continue;
       }
       invariant(
         rawMessageInfo.type === messageTypes.IMAGES ||
           rawMessageInfo.type === messageTypes.MULTIMEDIA,
         `rawMessageInfo ${localMessageID} should be multimedia`,
       );
 
       let allUploadsComplete = true;
       const completedUploadIDs = new Set(Object.keys(messagePendingUploads));
       for (const singleMedia of rawMessageInfo.media) {
         if (isLocalUploadID(singleMedia.id)) {
           allUploadsComplete = false;
           completedUploadIDs.delete(singleMedia.id);
         }
       }
 
       if (allUploadsComplete) {
         completedUploads[localMessageID] = null;
       } else if (completedUploadIDs.size > 0) {
         completedUploads[localMessageID] = completedUploadIDs;
       }
     }
     return completedUploads;
   }
 
   componentDidUpdate(prevProps: Props, prevState: State) {
     if (this.props.viewerID !== prevProps.viewerID) {
       this.setState({ pendingUploads: {} });
       return;
     }
 
     const currentlyComplete = InputStateContainer.getCompletedUploads(
       this.props,
       this.state,
     );
     const previouslyComplete = InputStateContainer.getCompletedUploads(
       prevProps,
       prevState,
     );
 
     const newPendingUploads = {};
     let pendingUploadsChanged = false;
     const readyMessageIDs = [];
     for (const localMessageID in this.state.pendingUploads) {
       const messagePendingUploads = this.state.pendingUploads[localMessageID];
       const prevRawMessageInfo = prevProps.messageStoreMessages[localMessageID];
       const rawMessageInfo = this.props.messageStoreMessages[localMessageID];
       const completedUploadIDs = currentlyComplete[localMessageID];
       const previouslyCompletedUploadIDs = previouslyComplete[localMessageID];
 
       if (!rawMessageInfo && prevRawMessageInfo) {
         pendingUploadsChanged = true;
         continue;
       } else if (completedUploadIDs === null) {
         // All of this message's uploads have been completed
         newPendingUploads[localMessageID] = {};
         if (previouslyCompletedUploadIDs !== null) {
           readyMessageIDs.push(localMessageID);
           pendingUploadsChanged = true;
         }
         continue;
       } else if (!completedUploadIDs) {
         // Nothing has been completed
         newPendingUploads[localMessageID] = messagePendingUploads;
         continue;
       }
 
       const newUploads = {};
       let uploadsChanged = false;
       for (const localUploadID in messagePendingUploads) {
         if (!completedUploadIDs.has(localUploadID)) {
           newUploads[localUploadID] = messagePendingUploads[localUploadID];
         } else if (
           !previouslyCompletedUploadIDs ||
           !previouslyCompletedUploadIDs.has(localUploadID)
         ) {
           uploadsChanged = true;
         }
       }
 
       if (uploadsChanged) {
         pendingUploadsChanged = true;
         newPendingUploads[localMessageID] = newUploads;
       } else {
         newPendingUploads[localMessageID] = messagePendingUploads;
       }
     }
     if (pendingUploadsChanged) {
       this.setState({ pendingUploads: newPendingUploads });
     }
 
     for (const localMessageID of readyMessageIDs) {
       const rawMessageInfo = this.props.messageStoreMessages[localMessageID];
       if (!rawMessageInfo) {
         continue;
       }
       invariant(
         rawMessageInfo.type === messageTypes.IMAGES ||
           rawMessageInfo.type === messageTypes.MULTIMEDIA,
         `rawMessageInfo ${localMessageID} should be multimedia`,
       );
       this.dispatchMultimediaMessageAction(rawMessageInfo);
     }
   }
 
   async dispatchMultimediaMessageAction(messageInfo: RawMultimediaMessageInfo) {
     if (!threadIsPending(messageInfo.threadID)) {
       this.props.dispatchActionPromise(
         sendMultimediaMessageActionTypes,
         this.sendMultimediaMessageAction(messageInfo),
         undefined,
         messageInfo,
       );
       return;
     }
 
     this.props.dispatch({
       type: sendMultimediaMessageActionTypes.started,
       payload: messageInfo,
     });
 
     let newThreadID = null;
     try {
       const threadCreationPromise = this.pendingThreadCreations.get(
         messageInfo.threadID,
       );
       if (!threadCreationPromise) {
         // When we create or retry multimedia message, we add a promise to
         // pendingThreadCreations map. This promise can be removed in
         // sendMultimediaMessage and sendTextMessage methods. When any of these
         // method remove the promise, it has to be settled. If the promise was
         // fulfilled, this method would be called with realized thread, so we
         // can conclude that the promise was rejected. We don't have enough info
         // here to retry the thread creation, but we can mark the message as
         // failed. Then the retry will be possible and promise will be created
         // again.
         throw new Error('Thread creation failed');
       }
       newThreadID = await threadCreationPromise;
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       this.props.dispatch({
         type: sendMultimediaMessageActionTypes.failed,
         payload: copy,
         error: true,
       });
       return;
     } finally {
       this.pendingThreadCreations.delete(messageInfo.threadID);
     }
 
     const newMessageInfo = {
       ...messageInfo,
       threadID: newThreadID,
       time: Date.now(),
     };
     this.props.dispatchActionPromise(
       sendMultimediaMessageActionTypes,
       this.sendMultimediaMessageAction(newMessageInfo),
       undefined,
       newMessageInfo,
     );
   }
 
   async sendMultimediaMessageAction(
     messageInfo: RawMultimediaMessageInfo,
   ): Promise<SendMessagePayload> {
     const { localID, threadID } = messageInfo;
     invariant(
       localID !== null && localID !== undefined,
       'localID should be set',
     );
     const sidebarCreation =
       this.pendingSidebarCreationMessageLocalIDs.has(localID);
     const mediaMessageContents = getMediaMessageServerDBContentsFromMedia(
       messageInfo.media,
     );
     try {
       const result = await this.props.sendMultimediaMessage({
         threadID,
         localID,
         mediaMessageContents,
         sidebarCreation,
       });
       this.pendingSidebarCreationMessageLocalIDs.delete(localID);
       return {
         localID,
         serverID: result.id,
         threadID,
         time: result.time,
         interface: result.interface,
       };
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = localID;
       copy.threadID = threadID;
       throw copy;
     }
   }
 
   inputStateSelector = createSelector(
     (state: State) => state.pendingUploads,
     (pendingUploads: PendingMultimediaUploads) => ({
       pendingUploads,
       sendTextMessage: this.sendTextMessage,
       sendMultimediaMessage: this.sendMultimediaMessage,
       editInputMessage: this.editInputMessage,
       addEditInputMessageListener: this.addEditInputMessageListener,
       removeEditInputMessageListener: this.removeEditInputMessageListener,
       messageHasUploadFailure: this.messageHasUploadFailure,
       retryMessage: this.retryMessage,
       registerSendCallback: this.registerSendCallback,
       unregisterSendCallback: this.unregisterSendCallback,
       uploadInProgress: this.uploadInProgress,
       reportURIDisplayed: this.reportURIDisplayed,
       setPendingThreadUpdateHandler: this.setPendingThreadUpdateHandler,
       scrollToMessage: this.scrollToMessage,
       addScrollToMessageListener: this.addScrollToMessageListener,
       removeScrollToMessageListener: this.removeScrollToMessageListener,
     }),
   );
 
   scrollToMessage = (messageID: string) => {
     this.scrollToMessageCallbacks.forEach(callback => callback(messageID));
   };
 
   addScrollToMessageListener = (callback: (messageID: string) => void) => {
     this.scrollToMessageCallbacks.push(callback);
   };
 
   removeScrollToMessageListener = (
     callbackScrollToMessage: (messageID: string) => void,
   ) => {
     this.scrollToMessageCallbacks = this.scrollToMessageCallbacks.filter(
       candidate => candidate !== callbackScrollToMessage,
     );
   };
 
   uploadInProgress = () => {
     if (this.props.ongoingMessageCreation) {
       return true;
     }
     const { pendingUploads } = this.state;
     return values(pendingUploads).some(messagePendingUploads =>
       values(messagePendingUploads).some(upload => !upload.failed),
     );
   };
 
   sendTextMessage = async (
     messageInfo: RawTextMessageInfo,
-    inputThreadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    inputThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => {
     this.sendCallbacks.forEach(callback => callback());
 
     const { localID } = messageInfo;
     invariant(
       localID !== null && localID !== undefined,
       'localID should be set',
     );
     if (threadIsPendingSidebar(inputThreadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localID);
     }
 
     if (!threadIsPending(inputThreadInfo.id)) {
       this.props.dispatchActionPromise(
         sendTextMessageActionTypes,
         this.sendTextMessageAction(
           messageInfo,
           inputThreadInfo,
           parentThreadInfo,
         ),
         undefined,
         messageInfo,
       );
       return;
     }
 
     this.props.dispatch({
       type: sendTextMessageActionTypes.started,
       payload: messageInfo,
     });
 
     let threadInfo = inputThreadInfo;
     const { viewerID } = this.props;
     if (viewerID && inputThreadInfo.type === threadTypes.SIDEBAR) {
       invariant(parentThreadInfo, 'sidebar should have parent');
       threadInfo = patchThreadInfoToIncludeMentionedMembersOfParent(
         inputThreadInfo,
         parentThreadInfo,
         messageInfo.text,
         viewerID,
       );
       if (threadInfo !== inputThreadInfo) {
         const pendingThreadUpdateHandler = this.pendingThreadUpdateHandlers.get(
           threadInfo.id,
         );
         pendingThreadUpdateHandler?.(threadInfo);
       }
     }
 
     let newThreadID = null;
     try {
       newThreadID = await this.startThreadCreation(threadInfo);
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       this.props.dispatch({
         type: sendTextMessageActionTypes.failed,
         payload: copy,
         error: true,
       });
       return;
     } finally {
       this.pendingThreadCreations.delete(threadInfo.id);
     }
 
     const newMessageInfo = {
       ...messageInfo,
       threadID: newThreadID,
       time: Date.now(),
     };
-    const newThreadInfo = {
-      ...threadInfo,
-      id: newThreadID,
-    };
+
+    // Branching to appease `flow`.
+    const newThreadInfo = threadInfo.minimallyEncoded
+      ? {
+          ...threadInfo,
+          id: newThreadID,
+        }
+      : {
+          ...threadInfo,
+          id: newThreadID,
+        };
+
     this.props.dispatchActionPromise(
       sendTextMessageActionTypes,
       this.sendTextMessageAction(
         newMessageInfo,
         newThreadInfo,
         parentThreadInfo,
       ),
       undefined,
       newMessageInfo,
     );
   };
 
-  startThreadCreation(threadInfo: ThreadInfo): Promise<string> {
+  startThreadCreation(
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  ): Promise<string> {
     if (!threadIsPending(threadInfo.id)) {
       return Promise.resolve(threadInfo.id);
     }
     let threadCreationPromise = this.pendingThreadCreations.get(threadInfo.id);
     if (!threadCreationPromise) {
       const calendarQuery = this.props.calendarQuery();
       threadCreationPromise = createRealThreadFromPendingThread({
         threadInfo,
         dispatchActionPromise: this.props.dispatchActionPromise,
         createNewThread: this.props.newThread,
         sourceMessageID: threadInfo.sourceMessageID,
         viewerID: this.props.viewerID,
         calendarQuery,
       });
       this.pendingThreadCreations.set(threadInfo.id, threadCreationPromise);
     }
     return threadCreationPromise;
   }
 
   async sendTextMessageAction(
     messageInfo: RawTextMessageInfo,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ): Promise<SendMessagePayload> {
     try {
       await this.props.textMessageCreationSideEffectsFunc(
         messageInfo,
         threadInfo,
         parentThreadInfo,
       );
       const { localID } = messageInfo;
       invariant(
         localID !== null && localID !== undefined,
         'localID should be set',
       );
       const sidebarCreation =
         this.pendingSidebarCreationMessageLocalIDs.has(localID);
       const result = await this.props.sendTextMessage({
         threadID: messageInfo.threadID,
         localID,
         text: messageInfo.text,
         sidebarCreation,
       });
       this.pendingSidebarCreationMessageLocalIDs.delete(localID);
       return {
         localID,
         serverID: result.id,
         threadID: messageInfo.threadID,
         time: result.time,
         interface: result.interface,
       };
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       throw copy;
     }
   }
 
-  shouldEncryptMedia(threadInfo: ThreadInfo): boolean {
+  shouldEncryptMedia(
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  ): boolean {
     return threadInfoInsideCommunity(threadInfo, commStaffCommunity.id);
   }
 
   sendMultimediaMessage = async (
     selections: $ReadOnlyArray<NativeMediaSelection>,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ) => {
     this.sendCallbacks.forEach(callback => callback());
     const localMessageID = this.props.nextLocalID;
     this.startThreadCreation(threadInfo);
 
     if (threadIsPendingSidebar(threadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localMessageID);
     }
 
     const uploadFileInputs = [],
       media = [];
     for (const selection of selections) {
       const localMediaID = getNextLocalUploadID();
       let ids;
       if (
         selection.step === 'photo_library' ||
         selection.step === 'photo_capture' ||
         selection.step === 'photo_paste'
       ) {
         media.push({
           id: localMediaID,
           uri: selection.uri,
           type: 'photo',
           dimensions: selection.dimensions,
           localMediaSelection: selection,
           thumbHash: null,
         });
         ids = { type: 'photo', localMediaID };
       }
       const localThumbnailID = getNextLocalUploadID();
       if (selection.step === 'video_library') {
         media.push({
           id: localMediaID,
           uri: selection.uri,
           type: 'video',
           dimensions: selection.dimensions,
           localMediaSelection: selection,
           loop: false,
           thumbnailID: localThumbnailID,
           thumbnailURI: selection.uri,
           thumbnailThumbHash: null,
         });
         ids = { type: 'video', localMediaID, localThumbnailID };
       }
       invariant(ids, `unexpected MediaSelection ${selection.step}`);
       uploadFileInputs.push({ selection, ids });
     }
 
     const pendingUploads = {};
     for (const uploadFileInput of uploadFileInputs) {
       const { localMediaID } = uploadFileInput.ids;
       pendingUploads[localMediaID] = {
         failed: false,
         progressPercent: 0,
         processingStep: null,
       };
       if (uploadFileInput.ids.type === 'video') {
         const { localThumbnailID } = uploadFileInput.ids;
         pendingUploads[localThumbnailID] = {
           failed: false,
           progressPercent: 0,
           processingStep: null,
         };
       }
     }
 
     this.setState(
       prevState => {
         return {
           pendingUploads: {
             ...prevState.pendingUploads,
             [localMessageID]: pendingUploads,
           },
         };
       },
       () => {
         const creatorID = this.props.viewerID;
         invariant(creatorID, 'need viewer ID in order to send a message');
         const messageInfo = createMediaMessageInfo(
           {
             localID: localMessageID,
             threadID: threadInfo.id,
             creatorID,
             media,
           },
           { forceMultimediaMessageType: this.shouldEncryptMedia(threadInfo) },
         );
         this.props.dispatch({
           type: createLocalMessageActionType,
           payload: messageInfo,
         });
       },
     );
 
     await this.uploadFiles(localMessageID, uploadFileInputs, threadInfo);
   };
 
   async uploadFiles(
     localMessageID: string,
     uploadFileInputs: $ReadOnlyArray<UploadFileInput>,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ) {
     const results = await Promise.all(
       uploadFileInputs.map(uploadFileInput =>
         this.uploadFile(localMessageID, uploadFileInput, threadInfo),
       ),
     );
     const errors = [...new Set(results.filter(Boolean))];
     if (errors.length > 0) {
       displayActionResultModal(errors.join(', ') + ' :(');
     }
   }
 
   async uploadFile(
     localMessageID: string,
     uploadFileInput: UploadFileInput,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ): Promise<?string> {
     const { ids, selection } = uploadFileInput;
     const { localMediaID } = ids;
     const start = selection.sendTime;
     const steps = [selection];
     let encryptionSteps = [];
     let serverID;
     let userTime;
     let errorMessage;
     let reportPromise;
     const filesToDispose = [];
 
     const onUploadFinished = async (result: MediaMissionResult) => {
       if (!this.props.mediaReportsEnabled) {
         return errorMessage;
       }
       if (reportPromise) {
         const finalSteps = await reportPromise;
         steps.push(...finalSteps);
         steps.push(...encryptionSteps);
       }
       const totalTime = Date.now() - start;
       userTime = userTime ? userTime : totalTime;
       this.queueMediaMissionReport(
         { localID: localMediaID, localMessageID, serverID },
         { steps, result, totalTime, userTime },
       );
       return errorMessage;
     };
     const onUploadFailed = (mediaID: string, message: string) => {
       errorMessage = message;
       this.handleUploadFailure(localMessageID, mediaID);
       userTime = Date.now() - start;
     };
 
     const onTranscodingProgress = (percent: number) => {
       this.setProgress(localMessageID, localMediaID, 'transcoding', percent);
     };
 
     let processedMedia;
     const processingStart = Date.now();
     try {
       const processMediaReturn = processMedia(selection, {
         hasWiFi: this.props.hasWiFi,
         finalFileHeaderCheck: this.props.staffCanSee,
         onTranscodingProgress,
       });
       reportPromise = processMediaReturn.reportPromise;
       const processResult = await processMediaReturn.resultPromise;
       if (!processResult.success) {
         const message =
           processResult.reason === 'video_too_long'
             ? `can't do vids longer than ${videoDurationLimit}min`
             : 'processing failed';
         onUploadFailed(localMediaID, message);
         return await onUploadFinished(processResult);
       }
       if (processResult.shouldDisposePath) {
         filesToDispose.push(processResult.shouldDisposePath);
       }
       processedMedia = processResult;
     } catch (e) {
       onUploadFailed(localMediaID, 'processing failed');
       return await onUploadFinished({
         success: false,
         reason: 'processing_exception',
         time: Date.now() - processingStart,
         exceptionMessage: getMessageForException(e),
       });
     }
 
     if (this.shouldEncryptMedia(threadInfo)) {
       const encryptionStart = Date.now();
       try {
         const { result: encryptionResult, ...encryptionReturn } =
           await encryptMedia(processedMedia);
         encryptionSteps = encryptionReturn.steps;
         if (!encryptionResult.success) {
           onUploadFailed(localMediaID, encryptionResult.reason);
           return await onUploadFinished(encryptionResult);
         }
         if (encryptionResult.shouldDisposePath) {
           filesToDispose.push(encryptionResult.shouldDisposePath);
         }
         processedMedia = encryptionResult;
       } catch (e) {
         onUploadFailed(localMediaID, 'encryption failed');
         return await onUploadFinished({
           success: false,
           reason: 'encryption_exception',
           time: Date.now() - encryptionStart,
           exceptionMessage: getMessageForException(e),
         });
       }
     }
 
     const { uploadURI, filename, mime } = processedMedia;
 
     const { hasWiFi } = this.props;
 
     const uploadStart = Date.now();
     let uploadExceptionMessage,
       uploadResult,
       uploadThumbnailResult,
       mediaMissionResult;
     try {
       const uploadPromises = [];
       if (
         this.useBlobServiceUploads &&
         (processedMedia.mediaType === 'encrypted_photo' ||
           processedMedia.mediaType === 'encrypted_video')
       ) {
         uploadPromises.push(
           this.props.blobServiceUpload({
             uploadInput: {
               blobInput: {
                 type: 'uri',
                 uri: uploadURI,
                 filename: filename,
                 mimeType: mime,
               },
               blobHash: processedMedia.blobHash,
               encryptionKey: processedMedia.encryptionKey,
               dimensions: processedMedia.dimensions,
               thumbHash:
                 processedMedia.mediaType === 'encrypted_photo'
                   ? processedMedia.thumbHash
                   : null,
             },
             keyserverOrThreadID: threadInfo.id,
             callbacks: {
               blobServiceUploadHandler,
               onProgress: (percent: number) => {
                 this.setProgress(
                   localMessageID,
                   localMediaID,
                   'uploading',
                   percent,
                 );
               },
             },
           }),
         );
 
         if (processedMedia.mediaType === 'encrypted_video') {
           uploadPromises.push(
             this.props.blobServiceUpload({
               uploadInput: {
                 blobInput: {
                   type: 'uri',
                   uri: processedMedia.uploadThumbnailURI,
                   filename: replaceExtension(`thumb${filename}`, 'jpg'),
                   mimeType: 'image/jpeg',
                 },
                 blobHash: processedMedia.thumbnailBlobHash,
                 encryptionKey: processedMedia.thumbnailEncryptionKey,
                 loop: false,
                 dimensions: processedMedia.dimensions,
                 thumbHash: processedMedia.thumbHash,
               },
               keyserverOrThreadID: threadInfo.id,
               callbacks: {
                 blobServiceUploadHandler,
               },
             }),
           );
         }
         [uploadResult, uploadThumbnailResult] = await Promise.all(
           uploadPromises,
         );
       } else {
         uploadPromises.push(
           this.props.uploadMultimedia(
             { uri: uploadURI, name: filename, type: mime },
             {
               ...processedMedia.dimensions,
               loop:
                 processedMedia.mediaType === 'video' ||
                 processedMedia.mediaType === 'encrypted_video'
                   ? processedMedia.loop
                   : undefined,
               encryptionKey: processedMedia.encryptionKey,
               thumbHash:
                 processedMedia.mediaType === 'photo' ||
                 processedMedia.mediaType === 'encrypted_photo'
                   ? processedMedia.thumbHash
                   : null,
             },
             {
               onProgress: (percent: number) =>
                 this.setProgress(
                   localMessageID,
                   localMediaID,
                   'uploading',
                   percent,
                 ),
               uploadBlob: this.uploadBlob,
             },
           ),
         );
 
         if (
           processedMedia.mediaType === 'video' ||
           processedMedia.mediaType === 'encrypted_video'
         ) {
           uploadPromises.push(
             this.props.uploadMultimedia(
               {
                 uri: processedMedia.uploadThumbnailURI,
                 name: replaceExtension(`thumb${filename}`, 'jpg'),
                 type: 'image/jpeg',
               },
               {
                 ...processedMedia.dimensions,
                 loop: false,
                 encryptionKey: processedMedia.thumbnailEncryptionKey,
                 thumbHash: processedMedia.thumbHash,
               },
               {
                 uploadBlob: this.uploadBlob,
               },
             ),
           );
         }
         [uploadResult, uploadThumbnailResult] = await Promise.all(
           uploadPromises,
         );
       }
       mediaMissionResult = { success: true };
     } catch (e) {
       uploadExceptionMessage = getMessageForException(e);
       onUploadFailed(localMediaID, 'upload failed');
       mediaMissionResult = {
         success: false,
         reason: 'http_upload_failed',
         exceptionMessage: uploadExceptionMessage,
       };
     }
 
     if (
       ((processedMedia.mediaType === 'photo' ||
         processedMedia.mediaType === 'encrypted_photo') &&
         uploadResult) ||
       ((processedMedia.mediaType === 'video' ||
         processedMedia.mediaType === 'encrypted_video') &&
         uploadResult &&
         uploadThumbnailResult)
     ) {
       const { encryptionKey } = processedMedia;
       const { id, uri, dimensions, loop } = uploadResult;
       serverID = id;
 
       const mediaSourcePayload =
         processedMedia.mediaType === 'encrypted_photo' ||
         processedMedia.mediaType === 'encrypted_video'
           ? {
               type: processedMedia.mediaType,
               blobURI: uri,
               encryptionKey,
             }
           : {
               type: uploadResult.mediaType,
               uri,
             };
       let updateMediaPayload = {
         messageID: localMessageID,
         currentMediaID: localMediaID,
         mediaUpdate: {
           id,
           ...mediaSourcePayload,
           dimensions,
           localMediaSelection: undefined,
           loop: uploadResult.mediaType === 'video' ? loop : undefined,
         },
       };
 
       if (
         processedMedia.mediaType === 'video' ||
         processedMedia.mediaType === 'encrypted_video'
       ) {
         invariant(uploadThumbnailResult, 'uploadThumbnailResult exists');
         const { uri: thumbnailURI, id: thumbnailID } = uploadThumbnailResult;
         const { thumbnailEncryptionKey, thumbHash: thumbnailThumbHash } =
           processedMedia;
 
         if (processedMedia.mediaType === 'encrypted_video') {
           updateMediaPayload = {
             ...updateMediaPayload,
             mediaUpdate: {
               ...updateMediaPayload.mediaUpdate,
               thumbnailID,
               thumbnailBlobURI: thumbnailURI,
               thumbnailEncryptionKey,
               thumbnailThumbHash,
             },
           };
         } else {
           updateMediaPayload = {
             ...updateMediaPayload,
             mediaUpdate: {
               ...updateMediaPayload.mediaUpdate,
               thumbnailID,
               thumbnailURI,
               thumbnailThumbHash,
             },
           };
         }
       } else {
         updateMediaPayload = {
           ...updateMediaPayload,
           mediaUpdate: {
             ...updateMediaPayload.mediaUpdate,
             thumbHash: processedMedia.thumbHash,
           },
         };
       }
 
       // When we dispatch this action, it updates Redux and triggers the
       // componentDidUpdate in this class. componentDidUpdate will handle
       // calling dispatchMultimediaMessageAction once all the uploads are
       // complete, and does not wait until this function concludes.
       this.props.dispatch({
         type: updateMultimediaMessageMediaActionType,
         payload: updateMediaPayload,
       });
       userTime = Date.now() - start;
     }
 
     const processSteps = await reportPromise;
     reportPromise = null;
     steps.push(...processSteps);
     steps.push(...encryptionSteps);
     steps.push({
       step: 'upload',
       success: !!uploadResult,
       exceptionMessage: uploadExceptionMessage,
       time: Date.now() - uploadStart,
       inputFilename: filename,
       outputMediaType: uploadResult && uploadResult.mediaType,
       outputURI: uploadResult && uploadResult.uri,
       outputDimensions: uploadResult && uploadResult.dimensions,
       outputLoop: uploadResult && uploadResult.loop,
       hasWiFi,
     });
 
     const cleanupPromises = [];
 
     if (filesToDispose.length > 0) {
       // If processMedia needed to do any transcoding before upload, we dispose
       // of the resultant temporary file here. Since the transcoded temporary
       // file is only used for upload, we can dispose of it after processMedia
       // (reportPromise) and the upload are complete
       filesToDispose.forEach(shouldDisposePath => {
         cleanupPromises.push(
           (async () => {
             const disposeStep = await disposeTempFile(shouldDisposePath);
             steps.push(disposeStep);
           })(),
         );
       });
     }
 
     // if there's a thumbnail we'll temporarily unlink it here
     // instead of in media-utils, will be changed in later diffs
     if (processedMedia.mediaType === 'video') {
       const { uploadThumbnailURI } = processedMedia;
       cleanupPromises.push(
         (async () => {
           const { steps: clearSteps, result: thumbnailPath } =
             await this.waitForCaptureURIUnload(uploadThumbnailURI);
           steps.push(...clearSteps);
           if (!thumbnailPath) {
             return;
           }
           const disposeStep = await disposeTempFile(thumbnailPath);
           steps.push(disposeStep);
         })(),
       );
     }
 
     if (selection.captureTime || selection.step === 'photo_paste') {
       // If we are uploading a newly captured photo, we dispose of the original
       // file here. Note that we try to save photo captures to the camera roll
       // if we have permission. Even if we fail, this temporary file isn't
       // visible to the user, so there's no point in keeping it around. Since
       // the initial URI is used in rendering paths, we have to wait for it to
       // be replaced with the remote URI before we can dispose. Check out the
       // Multimedia component to see how the URIs get switched out.
       const captureURI = selection.uri;
       cleanupPromises.push(
         (async () => {
           const { steps: clearSteps, result: capturePath } =
             await this.waitForCaptureURIUnload(captureURI);
           steps.push(...clearSteps);
           if (!capturePath) {
             return;
           }
           const disposeStep = await disposeTempFile(capturePath);
           steps.push(disposeStep);
         })(),
       );
     }
 
     await Promise.all(cleanupPromises);
 
     return await onUploadFinished(mediaMissionResult);
   }
 
   setProgress(
     localMessageID: string,
     localUploadID: string,
     processingStep: MultimediaProcessingStep,
     progressPercent: number,
   ) {
     this.setState(prevState => {
       const pendingUploads = prevState.pendingUploads[localMessageID];
       if (!pendingUploads) {
         return {};
       }
       const pendingUpload = pendingUploads[localUploadID];
       if (!pendingUpload) {
         return {};
       }
       const newOutOfHundred = Math.floor(progressPercent * 100);
       const oldOutOfHundred = Math.floor(pendingUpload.progressPercent * 100);
       if (newOutOfHundred === oldOutOfHundred) {
         return {};
       }
       const newPendingUploads = {
         ...pendingUploads,
         [localUploadID]: {
           ...pendingUpload,
           progressPercent,
           processingStep,
         },
       };
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [localMessageID]: newPendingUploads,
         },
       };
     });
   }
 
   uploadBlob = async (
     url: string,
     cookie: ?string,
     sessionID: ?string,
     input: { +[key: string]: mixed },
     options?: ?CallServerEndpointOptions,
   ): Promise<CallServerEndpointResponse> => {
     invariant(
       cookie &&
         input.multimedia &&
         Array.isArray(input.multimedia) &&
         input.multimedia.length === 1 &&
         input.multimedia[0] &&
         typeof input.multimedia[0] === 'object',
       'InputStateContainer.uploadBlob sent incorrect input',
     );
     const { uri, name, type } = input.multimedia[0];
     invariant(
       typeof uri === 'string' &&
         typeof name === 'string' &&
         typeof type === 'string',
       'InputStateContainer.uploadBlob sent incorrect input',
     );
 
     const parameters = {};
     parameters.cookie = cookie;
     parameters.filename = name;
 
     for (const key in input) {
       if (
         key === 'multimedia' ||
         key === 'cookie' ||
         key === 'sessionID' ||
         key === 'filename'
       ) {
         continue;
       }
       const value = input[key];
       invariant(
         typeof value === 'string',
         'blobUpload calls can only handle string values for non-multimedia keys',
       );
       parameters[key] = value;
     }
 
     let path = uri;
     if (Platform.OS === 'android') {
       const resolvedPath = pathFromURI(uri);
       if (resolvedPath) {
         path = resolvedPath;
       }
     }
     const uploadTask = FileSystem.createUploadTask(
       url,
       path,
       {
         uploadType: FileSystem.FileSystemUploadType.MULTIPART,
         fieldName: 'multimedia',
         headers: {
           Accept: 'application/json',
         },
         parameters,
       },
       uploadProgress => {
         if (options && options.onProgress) {
           const { totalByteSent, totalBytesExpectedToSend } = uploadProgress;
           options.onProgress(totalByteSent / totalBytesExpectedToSend);
         }
       },
     );
     if (options && options.abortHandler) {
       options.abortHandler(() => uploadTask.cancelAsync());
     }
     try {
       const response = await uploadTask.uploadAsync();
       return JSON.parse(response.body);
     } catch (e) {
       throw new Error(
         `Failed to upload blob: ${
           getMessageForException(e) ?? 'unknown error'
         }`,
       );
     }
   };
 
   handleUploadFailure(localMessageID: string, localUploadID: string) {
     this.setState(prevState => {
       const uploads = prevState.pendingUploads[localMessageID];
       const upload = uploads[localUploadID];
       if (!upload) {
         // The upload has been completed before it failed
         return {};
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [localMessageID]: {
             ...uploads,
             [localUploadID]: {
               ...upload,
               failed: true,
               progressPercent: 0,
             },
           },
         },
       };
     });
   }
 
   queueMediaMissionReport(
     ids: { localID: string, localMessageID: string, serverID: ?string },
     mediaMission: MediaMission,
   ) {
     const report: ClientMediaMissionReportCreationRequest = {
       type: reportTypes.MEDIA_MISSION,
       time: Date.now(),
       platformDetails: getConfig().platformDetails,
       mediaMission,
       uploadServerID: ids.serverID,
       uploadLocalID: ids.localID,
       messageLocalID: ids.localMessageID,
       id: generateReportID(),
     };
     this.props.dispatch({
       type: queueReportsActionType,
       payload: {
         reports: [report],
       },
     });
   }
 
   messageHasUploadFailure = (localMessageID: string) => {
     const pendingUploads = this.state.pendingUploads[localMessageID];
     if (!pendingUploads) {
       return false;
     }
     return values(pendingUploads).some(upload => upload.failed);
   };
 
   editInputMessage = (params: EditInputBarMessageParameters) => {
     this.editInputBarCallbacks.forEach(addEditInputBarCallback =>
       addEditInputBarCallback(params),
     );
   };
 
   addEditInputMessageListener = (
     callbackEditInputBar: (params: EditInputBarMessageParameters) => void,
   ) => {
     this.editInputBarCallbacks.push(callbackEditInputBar);
   };
 
   removeEditInputMessageListener = (
     callbackEditInputBar: (params: EditInputBarMessageParameters) => void,
   ) => {
     this.editInputBarCallbacks = this.editInputBarCallbacks.filter(
       candidate => candidate !== callbackEditInputBar,
     );
   };
 
   retryTextMessage = async (
     rawMessageInfo: RawTextMessageInfo,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => {
     await this.sendTextMessage(
       {
         ...rawMessageInfo,
         time: Date.now(),
       },
       threadInfo,
       parentThreadInfo,
     );
   };
 
   retryMultimediaMessage = async (
     rawMessageInfo: RawMultimediaMessageInfo,
     localMessageID: string,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ) => {
     const pendingUploads = this.state.pendingUploads[localMessageID] ?? {};
 
     const now = Date.now();
 
     this.startThreadCreation(threadInfo);
 
     if (threadIsPendingSidebar(threadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localMessageID);
     }
 
     const updateMedia = <T: Media>(media: $ReadOnlyArray<T>): T[] =>
       media.map(singleMedia => {
         invariant(
           singleMedia.type === 'photo' || singleMedia.type === 'video',
           'Retry selection must be unencrypted',
         );
 
         let updatedMedia = singleMedia;
 
         const oldMediaID = updatedMedia.id;
         if (
           // not complete
           isLocalUploadID(oldMediaID) &&
           // not still ongoing
           (!pendingUploads[oldMediaID] || pendingUploads[oldMediaID].failed)
         ) {
           // If we have an incomplete upload that isn't in pendingUploads, that
           // indicates the app has restarted. We'll reassign a new localID to
           // avoid collisions. Note that this isn't necessary for the message ID
           // since the localID reducer prevents collisions there
           const mediaID = pendingUploads[oldMediaID]
             ? oldMediaID
             : getNextLocalUploadID();
           if (updatedMedia.type === 'photo') {
             updatedMedia = {
               type: 'photo',
               ...updatedMedia,
               id: mediaID,
             };
           } else {
             updatedMedia = {
               type: 'video',
               ...updatedMedia,
               id: mediaID,
             };
           }
         }
 
         if (updatedMedia.type === 'video') {
           const oldThumbnailID = updatedMedia.thumbnailID;
           invariant(oldThumbnailID, 'oldThumbnailID not null or undefined');
           if (
             // not complete
             isLocalUploadID(oldThumbnailID) &&
             // not still ongoing
             (!pendingUploads[oldThumbnailID] ||
               pendingUploads[oldThumbnailID].failed)
           ) {
             const thumbnailID = pendingUploads[oldThumbnailID]
               ? oldThumbnailID
               : getNextLocalUploadID();
             updatedMedia = {
               ...updatedMedia,
               thumbnailID,
             };
           }
         }
 
         if (updatedMedia === singleMedia) {
           return singleMedia;
         }
 
         const oldSelection = updatedMedia.localMediaSelection;
         invariant(
           oldSelection,
           'localMediaSelection should be set on locally created Media',
         );
         const retries = oldSelection.retries ? oldSelection.retries + 1 : 1;
 
         // We switch for Flow
         let selection;
         if (oldSelection.step === 'photo_capture') {
           selection = { ...oldSelection, sendTime: now, retries };
         } else if (oldSelection.step === 'photo_library') {
           selection = { ...oldSelection, sendTime: now, retries };
         } else if (oldSelection.step === 'photo_paste') {
           selection = { ...oldSelection, sendTime: now, retries };
         } else {
           selection = { ...oldSelection, sendTime: now, retries };
         }
 
         if (updatedMedia.type === 'photo') {
           return {
             type: 'photo',
             ...updatedMedia,
             localMediaSelection: selection,
           };
         }
         return {
           type: 'video',
           ...updatedMedia,
           localMediaSelection: selection,
         };
       });
 
     let newRawMessageInfo;
     // This conditional is for Flow
     if (rawMessageInfo.type === messageTypes.MULTIMEDIA) {
       newRawMessageInfo = ({
         ...rawMessageInfo,
         time: now,
         media: updateMedia(rawMessageInfo.media),
       }: RawMediaMessageInfo);
     } else if (rawMessageInfo.type === messageTypes.IMAGES) {
       newRawMessageInfo = ({
         ...rawMessageInfo,
         time: now,
         media: updateMedia(rawMessageInfo.media),
       }: RawImagesMessageInfo);
     } else {
       invariant(false, `rawMessageInfo ${localMessageID} should be multimedia`);
     }
 
     const incompleteMedia: Media[] = [];
     for (const singleMedia of newRawMessageInfo.media) {
       if (isLocalUploadID(singleMedia.id)) {
         incompleteMedia.push(singleMedia);
       }
     }
     if (incompleteMedia.length === 0) {
       this.dispatchMultimediaMessageAction(newRawMessageInfo);
       this.setState(prevState => ({
         pendingUploads: {
           ...prevState.pendingUploads,
           [localMessageID]: {},
         },
       }));
       return;
     }
 
     const retryMedia = incompleteMedia.filter(
       ({ id }) => !pendingUploads[id] || pendingUploads[id].failed,
     );
     if (retryMedia.length === 0) {
       // All media are already in the process of being uploaded
       return;
     }
 
     // We're not actually starting the send here,
     // we just use this action to update the message in Redux
     this.props.dispatch({
       type: sendMultimediaMessageActionTypes.started,
       payload: newRawMessageInfo,
     });
 
     // We clear out the failed status on individual media here,
     // which makes the UI show pending status instead of error messages
     for (const singleMedia of retryMedia) {
       pendingUploads[singleMedia.id] = {
         failed: false,
         progressPercent: 0,
         processingStep: null,
       };
       if (singleMedia.type === 'video') {
         const { thumbnailID } = singleMedia;
         invariant(thumbnailID, 'thumbnailID not null or undefined');
         pendingUploads[thumbnailID] = {
           failed: false,
           progressPercent: 0,
           processingStep: null,
         };
       }
     }
     this.setState(prevState => ({
       pendingUploads: {
         ...prevState.pendingUploads,
         [localMessageID]: pendingUploads,
       },
     }));
 
     const uploadFileInputs = retryMedia.map(singleMedia => {
       invariant(
         singleMedia.localMediaSelection,
         'localMediaSelection should be set on locally created Media',
       );
 
       let ids;
       if (singleMedia.type === 'photo') {
         ids = { type: 'photo', localMediaID: singleMedia.id };
       } else {
         invariant(
           singleMedia.thumbnailID,
           'singleMedia.thumbnailID should be set for videos',
         );
         ids = {
           type: 'video',
           localMediaID: singleMedia.id,
           localThumbnailID: singleMedia.thumbnailID,
         };
       }
 
       return {
         selection: singleMedia.localMediaSelection,
         ids,
       };
     });
 
     await this.uploadFiles(localMessageID, uploadFileInputs, threadInfo);
   };
 
   retryMessage = async (
     localMessageID: string,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => {
     this.sendCallbacks.forEach(callback => callback());
 
     const rawMessageInfo = this.props.messageStoreMessages[localMessageID];
     invariant(rawMessageInfo, `rawMessageInfo ${localMessageID} should exist`);
 
     if (rawMessageInfo.type === messageTypes.TEXT) {
       await this.retryTextMessage(rawMessageInfo, threadInfo, parentThreadInfo);
     } else if (
       rawMessageInfo.type === messageTypes.IMAGES ||
       rawMessageInfo.type === messageTypes.MULTIMEDIA
     ) {
       await this.retryMultimediaMessage(
         rawMessageInfo,
         localMessageID,
         threadInfo,
       );
     }
   };
 
   registerSendCallback = (callback: () => void) => {
     this.sendCallbacks.push(callback);
   };
 
   unregisterSendCallback = (callback: () => void) => {
     this.sendCallbacks = this.sendCallbacks.filter(
       candidate => candidate !== callback,
     );
   };
 
   reportURIDisplayed = (uri: string, loaded: boolean) => {
     const prevActiveURI = this.activeURIs.get(uri);
     const curCount = prevActiveURI && prevActiveURI.count;
     const prevCount = curCount ? curCount : 0;
     const count = loaded ? prevCount + 1 : prevCount - 1;
     const prevOnClear = prevActiveURI && prevActiveURI.onClear;
     const onClear = prevOnClear ? prevOnClear : [];
     const activeURI = { count, onClear };
     if (count) {
       this.activeURIs.set(uri, activeURI);
       return;
     }
     this.activeURIs.delete(uri);
     for (const callback of onClear) {
       callback();
     }
   };
 
   waitForCaptureURIUnload(uri: string) {
     const start = Date.now();
     const path = pathFromURI(uri);
     if (!path) {
       return Promise.resolve({
         result: null,
         steps: [
           {
             step: 'wait_for_capture_uri_unload',
             success: false,
             time: Date.now() - start,
             uri,
           },
         ],
       });
     }
 
     const getResult = () => ({
       result: path,
       steps: [
         {
           step: 'wait_for_capture_uri_unload',
           success: true,
           time: Date.now() - start,
           uri,
         },
       ],
     });
 
     const activeURI = this.activeURIs.get(uri);
     if (!activeURI) {
       return Promise.resolve(getResult());
     }
 
     return new Promise(resolve => {
       const finish = () => resolve(getResult());
       const newActiveURI = {
         ...activeURI,
         onClear: [...activeURI.onClear, finish],
       };
       this.activeURIs.set(uri, newActiveURI);
     });
   }
 
   setPendingThreadUpdateHandler = (
     threadID: string,
-    pendingThreadUpdateHandler: ?(ThreadInfo) => mixed,
+    pendingThreadUpdateHandler: ?(
+      ThreadInfo | MinimallyEncodedThreadInfo,
+    ) => mixed,
   ) => {
     if (!pendingThreadUpdateHandler) {
       this.pendingThreadUpdateHandlers.delete(threadID);
     } else {
       this.pendingThreadUpdateHandlers.set(
         threadID,
         pendingThreadUpdateHandler,
       );
     }
   };
 
   render() {
     const inputState = this.inputStateSelector(this.state);
     return (
       <InputStateContext.Provider value={inputState}>
         {this.props.children}
       </InputStateContext.Provider>
     );
   }
 }
 
 const mediaCreationLoadingStatusSelector = createLoadingStatusSelector(
   sendMultimediaMessageActionTypes,
 );
 const textCreationLoadingStatusSelector = createLoadingStatusSelector(
   sendTextMessageActionTypes,
 );
 
 const ConnectedInputStateContainer: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedInputStateContainer(
     props: BaseProps,
   ) {
     const viewerID = useSelector(
       state => state.currentUserInfo && state.currentUserInfo.id,
     );
     const nextLocalID = useNextLocalID();
     const messageStoreMessages = useSelector(
       state => state.messageStore.messages,
     );
     const ongoingMessageCreation = useSelector(
       state =>
         combineLoadingStatuses(
           mediaCreationLoadingStatusSelector(state),
           textCreationLoadingStatusSelector(state),
         ) === 'loading',
     );
     const hasWiFi = useSelector(state => state.connectivity.hasWiFi);
     const calendarQuery = useCalendarQuery();
     const callUploadMultimedia = useServerCall(uploadMultimedia);
     const callBlobServiceUpload = useBlobServiceUpload();
     const callSendMultimediaMessage = useSendMultimediaMessage();
     const callSendTextMessage = useSendTextMessage();
     const callNewThread = useNewThread();
     const dispatchActionPromise = useDispatchActionPromise();
     const dispatch = useDispatch();
     const mediaReportsEnabled = useIsReportEnabled('mediaReports');
     const staffCanSee = useStaffCanSee();
     const textMessageCreationSideEffectsFunc =
       useMessageCreationSideEffectsFunc(messageTypes.TEXT);
 
     return (
       <InputStateContainer
         {...props}
         viewerID={viewerID}
         nextLocalID={nextLocalID}
         messageStoreMessages={messageStoreMessages}
         ongoingMessageCreation={ongoingMessageCreation}
         hasWiFi={hasWiFi}
         mediaReportsEnabled={mediaReportsEnabled}
         calendarQuery={calendarQuery}
         uploadMultimedia={callUploadMultimedia}
         blobServiceUpload={callBlobServiceUpload}
         sendMultimediaMessage={callSendMultimediaMessage}
         sendTextMessage={callSendTextMessage}
         newThread={callNewThread}
         dispatchActionPromise={dispatchActionPromise}
         dispatch={dispatch}
         staffCanSee={staffCanSee}
         textMessageCreationSideEffectsFunc={textMessageCreationSideEffectsFunc}
       />
     );
   });
 
 export default ConnectedInputStateContainer;
diff --git a/native/input/input-state.js b/native/input/input-state.js
index 4ea79e723..50f8abacc 100644
--- a/native/input/input-state.js
+++ b/native/input/input-state.js
@@ -1,70 +1,73 @@
 // @flow
 
 import * as React from 'react';
 
 import type { NativeMediaSelection } from 'lib/types/media-types.js';
 import type { RawTextMessageInfo } from 'lib/types/messages/text.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 export type MultimediaProcessingStep = 'transcoding' | 'uploading';
 
 export type PendingMultimediaUpload = {
   +failed: boolean,
   +progressPercent: number,
   +processingStep: ?MultimediaProcessingStep,
 };
 
 export type MessagePendingUploads = {
   [localUploadID: string]: PendingMultimediaUpload,
 };
 
 export type PendingMultimediaUploads = {
   [localMessageID: string]: MessagePendingUploads,
 };
 
 export type EditInputBarMessageParameters = {
   +message: string,
   +mode: 'prepend' | 'replace',
 };
 
 export type InputState = {
   +pendingUploads: PendingMultimediaUploads,
   +sendTextMessage: (
     messageInfo: RawTextMessageInfo,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => Promise<void>,
   +sendMultimediaMessage: (
     selections: $ReadOnlyArray<NativeMediaSelection>,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ) => Promise<void>,
   +editInputMessage: (params: EditInputBarMessageParameters) => void,
   +addEditInputMessageListener: (
     (params: EditInputBarMessageParameters) => void,
   ) => void,
   +removeEditInputMessageListener: (
     (params: EditInputBarMessageParameters) => void,
   ) => void,
   +messageHasUploadFailure: (localMessageID: string) => boolean,
   +retryMessage: (
     localMessageID: string,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => Promise<void>,
   +registerSendCallback: (() => void) => void,
   +unregisterSendCallback: (() => void) => void,
   +uploadInProgress: () => boolean,
   +reportURIDisplayed: (uri: string, loaded: boolean) => void,
   +setPendingThreadUpdateHandler: (
     threadID: string,
-    pendingThreadUpdateHandler: ?(ThreadInfo) => mixed,
+    pendingThreadUpdateHandler: ?(
+      ThreadInfo | MinimallyEncodedThreadInfo,
+    ) => mixed,
   ) => void,
   +scrollToMessage: (messageKey: string) => void,
   +addScrollToMessageListener: ((messageKey: string) => void) => void,
   +removeScrollToMessageListener: ((messageKey: string) => void) => void,
 };
 
 const InputStateContext: React.Context<?InputState> =
   React.createContext<?InputState>(null);
 
 export { InputStateContext };
diff --git a/native/keyboard/keyboard-state-container.react.js b/native/keyboard/keyboard-state-container.react.js
index 46aef59ef..fca12f44d 100644
--- a/native/keyboard/keyboard-state-container.react.js
+++ b/native/keyboard/keyboard-state-container.react.js
@@ -1,147 +1,149 @@
 // @flow
 
 import * as React from 'react';
 import { Platform } from 'react-native';
 import { KeyboardUtils } from 'react-native-keyboard-input';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import sleep from 'lib/utils/sleep.js';
 
 import KeyboardInputHost from './keyboard-input-host.react.js';
 import { KeyboardContext } from './keyboard-state.js';
 import {
   addKeyboardShowListener,
   addKeyboardDismissListener,
   removeKeyboardListener,
 } from './keyboard.js';
 import { tabBarAnimationDuration } from '../navigation/tab-bar.react.js';
 import { waitForInteractions } from '../utils/timers.js';
 
 type Props = {
   +children: React.Node,
 };
 type State = {
   +systemKeyboardShowing: boolean,
   +mediaGalleryOpen: boolean,
-  +mediaGalleryThread: ?ThreadInfo,
+  +mediaGalleryThread: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +renderKeyboardInputHost: boolean,
 };
 class KeyboardStateContainer extends React.PureComponent<Props, State> {
   state: State = {
     systemKeyboardShowing: false,
     mediaGalleryOpen: false,
     mediaGalleryThread: null,
     renderKeyboardInputHost: false,
   };
   keyboardShowListener: ?Object;
   keyboardDismissListener: ?Object;
 
   keyboardShow: () => void = () => {
     this.setState({ systemKeyboardShowing: true });
   };
 
   keyboardDismiss: () => void = () => {
     this.setState({ systemKeyboardShowing: false });
   };
 
   componentDidMount() {
     this.keyboardShowListener = addKeyboardShowListener(this.keyboardShow);
     this.keyboardDismissListener = addKeyboardDismissListener(
       this.keyboardDismiss,
     );
   }
 
   componentWillUnmount() {
     if (this.keyboardShowListener) {
       removeKeyboardListener(this.keyboardShowListener);
       this.keyboardShowListener = null;
     }
     if (this.keyboardDismissListener) {
       removeKeyboardListener(this.keyboardDismissListener);
       this.keyboardDismissListener = null;
     }
   }
 
   componentDidUpdate(prevProps: Props, prevState: State) {
     if (Platform.OS !== 'android') {
       return;
     }
     if (this.state.mediaGalleryOpen && !prevState.mediaGalleryOpen) {
       (async () => {
         await sleep(tabBarAnimationDuration);
         await waitForInteractions();
         this.setState({ renderKeyboardInputHost: true });
       })();
     }
   }
 
   dismissKeyboard: () => void = () => {
     KeyboardUtils.dismiss();
     this.hideMediaGallery();
   };
 
   dismissKeyboardIfShowing: () => boolean = () => {
     if (!this.keyboardShowing) {
       return false;
     }
     this.dismissKeyboard();
     return true;
   };
 
   get keyboardShowing(): boolean {
     const { systemKeyboardShowing, mediaGalleryOpen } = this.state;
     return systemKeyboardShowing || mediaGalleryOpen;
   }
 
-  showMediaGallery: (thread: ThreadInfo) => void = (thread: ThreadInfo) => {
-    this.setState({
-      mediaGalleryOpen: true,
-      mediaGalleryThread: thread,
-    });
-  };
+  showMediaGallery: (thread: ThreadInfo | MinimallyEncodedThreadInfo) => void =
+    (thread: ThreadInfo | MinimallyEncodedThreadInfo) => {
+      this.setState({
+        mediaGalleryOpen: true,
+        mediaGalleryThread: thread,
+      });
+    };
 
   hideMediaGallery: () => void = () => {
     this.setState({
       mediaGalleryOpen: false,
       mediaGalleryThread: null,
       renderKeyboardInputHost: false,
     });
   };
 
-  getMediaGalleryThread: () => ?ThreadInfo = () =>
+  getMediaGalleryThread: () => ?ThreadInfo | ?MinimallyEncodedThreadInfo = () =>
     this.state.mediaGalleryThread;
 
   render(): React.Node {
     const { systemKeyboardShowing, mediaGalleryOpen, renderKeyboardInputHost } =
       this.state;
     const {
       keyboardShowing,
       dismissKeyboard,
       dismissKeyboardIfShowing,
       showMediaGallery,
       hideMediaGallery,
       getMediaGalleryThread,
     } = this;
     const keyboardState = {
       keyboardShowing,
       dismissKeyboard,
       dismissKeyboardIfShowing,
       systemKeyboardShowing,
       mediaGalleryOpen,
       showMediaGallery,
       hideMediaGallery,
       getMediaGalleryThread,
     };
     const keyboardInputHost = renderKeyboardInputHost ? (
       <KeyboardInputHost />
     ) : null;
     return (
       <KeyboardContext.Provider value={keyboardState}>
         {this.props.children}
         {keyboardInputHost}
       </KeyboardContext.Provider>
     );
   }
 }
 
 export default KeyboardStateContainer;
diff --git a/native/keyboard/keyboard-state.js b/native/keyboard/keyboard-state.js
index 3ac97b881..396710158 100644
--- a/native/keyboard/keyboard-state.js
+++ b/native/keyboard/keyboard-state.js
@@ -1,21 +1,22 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 export type KeyboardState = {
   +keyboardShowing: boolean,
   +dismissKeyboard: () => void,
   +dismissKeyboardIfShowing: () => boolean,
   +systemKeyboardShowing: boolean,
   +mediaGalleryOpen: boolean,
-  +showMediaGallery: (thread: ThreadInfo) => void,
+  +showMediaGallery: (thread: ThreadInfo | MinimallyEncodedThreadInfo) => void,
   +hideMediaGallery: () => void,
-  +getMediaGalleryThread: () => ?ThreadInfo,
+  +getMediaGalleryThread: () => ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 };
 
 const KeyboardContext: React.Context<?KeyboardState> =
   React.createContext<?KeyboardState>(null);
 
 export { KeyboardContext };
diff --git a/native/media/chat-camera-modal.react.js b/native/media/chat-camera-modal.react.js
index 70903e150..25d73c942 100644
--- a/native/media/chat-camera-modal.react.js
+++ b/native/media/chat-camera-modal.react.js
@@ -1,41 +1,42 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import type { PhotoCapture } from 'lib/types/media-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import CameraModal from './camera-modal.react.js';
 import { InputStateContext } from '../input/input-state.js';
 import type { AppNavigationProp } from '../navigation/app-navigator.react.js';
 import type { NavigationRoute } from '../navigation/route-names.js';
 
 export type ChatCameraModalParams = {
   +presentedFrom: string,
-  +thread: ThreadInfo,
+  +thread: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type Props = {
   +navigation: AppNavigationProp<'ChatCameraModal'>,
   +route: NavigationRoute<'ChatCameraModal'>,
 };
 
 function ChatCameraModal(props: Props): React.Node {
   const { navigation, route } = props;
   const { thread } = route.params;
 
   const inputState = React.useContext(InputStateContext);
 
   const sendPhoto = React.useCallback(
     (capture: PhotoCapture) => {
       invariant(inputState, 'inputState should be set');
       inputState.sendMultimediaMessage([capture], thread);
     },
     [inputState, thread],
   );
 
   return <CameraModal handlePhotoCapture={sendPhoto} navigation={navigation} />;
 }
 
 export default ChatCameraModal;
diff --git a/native/search/message-search.react.js b/native/search/message-search.react.js
index 4dc241119..f4a9c183f 100644
--- a/native/search/message-search.react.js
+++ b/native/search/message-search.react.js
@@ -1,226 +1,227 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import { View } from 'react-native';
 import { FlatList } from 'react-native-gesture-handler';
 
 import { messageListData } from 'lib/selectors/chat-selectors.js';
 import { createMessageInfo } from 'lib/shared/message-utils.js';
 import {
   useSearchMessages,
   filterChatMessageInfosForSearch,
 } from 'lib/shared/search-utils.js';
 import type { RawMessageInfo } from 'lib/types/message-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import SearchFooter from './search-footer.react.js';
 import { MessageSearchContext } from './search-provider.react.js';
 import { useHeightMeasurer } from '../chat/chat-context.js';
 import type { ChatNavigationProp } from '../chat/chat.react.js';
 import { MessageListContextProvider } from '../chat/message-list-types.js';
 import MessageResult from '../chat/message-result.react.js';
 import ListLoadingIndicator from '../components/list-loading-indicator.react.js';
 import type { NavigationRoute } from '../navigation/route-names.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { useStyles } from '../themes/colors.js';
 import type { ChatMessageItemWithHeight } from '../types/chat-types.js';
 
 export type MessageSearchParams = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 export type MessageSearchProps = {
   +navigation: ChatNavigationProp<'MessageSearch'>,
   +route: NavigationRoute<'MessageSearch'>,
 };
 
 function MessageSearch(props: MessageSearchProps): React.Node {
   const searchContext = React.useContext(MessageSearchContext);
   invariant(searchContext, 'searchContext should be set');
   const { query, clearQuery } = searchContext;
   const { threadInfo } = props.route.params;
 
   React.useEffect(() => {
     return props.navigation.addListener('beforeRemove', clearQuery);
   }, [props.navigation, clearQuery]);
 
   const [lastID, setLastID] = React.useState();
   const [searchResults, setSearchResults] = React.useState([]);
   const [endReached, setEndReached] = React.useState(false);
 
   const appendSearchResults = React.useCallback(
     (
       newMessages: $ReadOnlyArray<RawMessageInfo>,
       end: boolean,
       queryID: number,
     ) => {
       if (queryID !== queryIDRef.current) {
         return;
       }
       setSearchResults(oldMessages => [...oldMessages, ...newMessages]);
       setEndReached(end);
     },
     [],
   );
 
   const searchMessages = useSearchMessages();
 
   const queryIDRef = React.useRef(0);
 
   React.useEffect(() => {
     setSearchResults([]);
     setLastID(undefined);
     setEndReached(false);
   }, [query, searchMessages]);
 
   React.useEffect(() => {
     queryIDRef.current += 1;
     searchMessages(
       query,
       threadInfo.id,
       appendSearchResults,
       queryIDRef.current,
       lastID,
     );
   }, [appendSearchResults, lastID, query, searchMessages, threadInfo.id]);
 
   const userInfos = useSelector(state => state.userStore.userInfos);
 
   const translatedSearchResults = React.useMemo(() => {
     const threadInfos = { [threadInfo.id]: threadInfo };
     return searchResults
       .map(rawMessageInfo =>
         createMessageInfo(rawMessageInfo, null, userInfos, threadInfos),
       )
       .filter(Boolean);
   }, [searchResults, threadInfo, userInfos]);
 
   const chatMessageInfos = useSelector(
     messageListData(threadInfo.id, translatedSearchResults),
   );
 
   const filteredChatMessageInfos = React.useMemo(() => {
     const result = filterChatMessageInfosForSearch(
       chatMessageInfos,
       translatedSearchResults,
     );
     if (result && !endReached) {
       return [...result, { itemType: 'loader' }];
     }
     return result;
   }, [chatMessageInfos, endReached, translatedSearchResults]);
 
   const [measuredMessages, setMeasuredMessages] = React.useState([]);
 
   const measureMessages = useHeightMeasurer();
   const measureCallback = React.useCallback(
     (listDataWithHeights: $ReadOnlyArray<ChatMessageItemWithHeight>) => {
       setMeasuredMessages(listDataWithHeights);
     },
     [setMeasuredMessages],
   );
 
   React.useEffect(() => {
     measureMessages(filteredChatMessageInfos, threadInfo, measureCallback);
   }, [filteredChatMessageInfos, measureCallback, measureMessages, threadInfo]);
 
   const [messageVerticalBounds, setMessageVerticalBounds] = React.useState();
   const scrollViewContainerRef = React.useRef();
 
   const onLayout = React.useCallback(() => {
     scrollViewContainerRef.current?.measure(
       (x, y, width, height, pageX, pageY) => {
         if (
           height === null ||
           height === undefined ||
           pageY === null ||
           pageY === undefined
         ) {
           return;
         }
 
         setMessageVerticalBounds({ height, y: pageY });
       },
     );
   }, []);
 
   const renderItem = React.useCallback(
     ({ item }) => {
       if (item.itemType === 'loader') {
         return <ListLoadingIndicator />;
       }
       return (
         <MessageResult
           key={item.messageInfo.id}
           item={item}
           threadInfo={threadInfo}
           navigation={props.navigation}
           route={props.route}
           messageVerticalBounds={messageVerticalBounds}
           scrollable={false}
         />
       );
     },
     [messageVerticalBounds, props.navigation, props.route, threadInfo],
   );
 
   const footer = React.useMemo(() => {
     if (query === '') {
       return <SearchFooter text="Your search results will appear here" />;
     }
     if (!endReached) {
       return null;
     }
     if (measuredMessages.length > 0) {
       return <SearchFooter text="End of results" />;
     }
     const text =
       'No results. Please try using different keywords to refine your search';
     return <SearchFooter text={text} />;
   }, [query, endReached, measuredMessages.length]);
 
   const onEndOfLoadedMessagesReached = React.useCallback(() => {
     if (endReached) {
       return;
     }
     setLastID(oldestMessageID(measuredMessages));
   }, [endReached, measuredMessages, setLastID]);
 
   const styles = useStyles(unboundStyles);
 
   return (
     <MessageListContextProvider threadInfo={threadInfo}>
       <View
         style={styles.content}
         ref={scrollViewContainerRef}
         onLayout={onLayout}
       >
         <FlatList
           renderItem={renderItem}
           data={measuredMessages}
           onEndReached={onEndOfLoadedMessagesReached}
           ListFooterComponent={footer}
         />
       </View>
     </MessageListContextProvider>
   );
 }
 
 function oldestMessageID(data: $ReadOnlyArray<ChatMessageItemWithHeight>) {
   for (let i = data.length - 1; i >= 0; i--) {
     if (data[i].itemType === 'message' && data[i].messageInfo.id) {
       return data[i].messageInfo.id;
     }
   }
   return undefined;
 }
 
 const unboundStyles = {
   content: {
     height: '100%',
     backgroundColor: 'panelBackground',
   },
 };
 
 export default MessageSearch;
diff --git a/native/search/search-messages-button.react.js b/native/search/search-messages-button.react.js
index a4b5acc8c..6e0630558 100644
--- a/native/search/search-messages-button.react.js
+++ b/native/search/search-messages-button.react.js
@@ -1,44 +1,45 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import type { ChatNavigationProp } from '../chat/chat.react.js';
 import Button from '../components/button.react.js';
 import SWMansionIcon from '../components/swmansion-icon.react.js';
 import { MessageSearchRouteName } from '../navigation/route-names.js';
 import { useStyles } from '../themes/colors.js';
 
 type Props = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +navigate: $PropertyType<ChatNavigationProp<'MessageList'>, 'navigate'>,
 };
 
 function SearchMessagesButton(props: Props): React.Node {
   const { threadInfo, navigate } = props;
   const styles = useStyles(unboundStyles);
 
   const onPress = React.useCallback(() => {
     navigate<'MessageSearch'>({
       name: MessageSearchRouteName,
       params: { threadInfo },
       key: `${MessageSearchRouteName}${threadInfo.id}`,
     });
   }, [navigate, threadInfo]);
 
   return (
     <Button onPress={onPress} androidBorderlessRipple={true}>
       <SWMansionIcon name="search" size={24} style={styles.button} />
     </Button>
   );
 }
 
 const unboundStyles = {
   button: {
     color: 'panelForegroundLabel',
     paddingHorizontal: 10,
   },
 };
 
 export default SearchMessagesButton;
diff --git a/native/types/chat-types.js b/native/types/chat-types.js
index ccfabb4b8..e7d5a8083 100644
--- a/native/types/chat-types.js
+++ b/native/types/chat-types.js
@@ -1,78 +1,79 @@
 // @flow
 
 import type { ReactionInfo } from 'lib/selectors/chat-selectors.js';
 import type {
   LocalMessageInfo,
   MultimediaMessageInfo,
   RobotextMessageInfo,
 } from 'lib/types/message-types.js';
 import type { TextMessageInfo } from 'lib/types/messages/text.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import type { EntityText } from 'lib/utils/entity-text.js';
 
 import type { MessagePendingUploads } from '../input/input-state.js';
 
 export type ChatRobotextMessageInfoItemWithHeight = {
   +itemType: 'message',
   +messageShapeType: 'robotext',
   +messageInfo: RobotextMessageInfo,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +startsConversation: boolean,
   +startsCluster: boolean,
   +endsCluster: boolean,
   +robotext: EntityText,
-  +threadCreatedFromMessage: ?ThreadInfo,
+  +threadCreatedFromMessage: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +contentHeight: number,
   +reactions: ReactionInfo,
 };
 
 export type ChatTextMessageInfoItemWithHeight = {
   +itemType: 'message',
   +messageShapeType: 'text',
   +messageInfo: TextMessageInfo,
   +localMessageInfo: ?LocalMessageInfo,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +startsConversation: boolean,
   +startsCluster: boolean,
   +endsCluster: boolean,
   +contentHeight: number,
-  +threadCreatedFromMessage: ?ThreadInfo,
+  +threadCreatedFromMessage: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +reactions: ReactionInfo,
   +hasBeenEdited: ?boolean,
   +isPinned: ?boolean,
 };
 
 // We "measure" the contentHeight of a multimedia message using the media
 // dimensions. This means for multimedia messages we only need to actually
 // measure the inline engagement node
 export type MultimediaContentSizes = {
   +imageHeight: number,
   +contentHeight: number,
   +contentWidth: number,
 };
 export type ChatMultimediaMessageInfoItem = {
   ...MultimediaContentSizes,
   +itemType: 'message',
   +messageShapeType: 'multimedia',
   +messageInfo: MultimediaMessageInfo,
   +localMessageInfo: ?LocalMessageInfo,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +startsConversation: boolean,
   +startsCluster: boolean,
   +endsCluster: boolean,
-  +threadCreatedFromMessage: ?ThreadInfo,
+  +threadCreatedFromMessage: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +pendingUploads: ?MessagePendingUploads,
   +reactions: ReactionInfo,
   +hasBeenEdited: ?boolean,
   +isPinned: ?boolean,
   +inlineEngagementHeight: ?number,
 };
 
 export type ChatMessageInfoItemWithHeight =
   | ChatRobotextMessageInfoItemWithHeight
   | ChatTextMessageInfoItemWithHeight
   | ChatMultimediaMessageInfoItem;
 
 export type ChatMessageItemWithHeight =
   | { itemType: 'loader' }
   | ChatMessageInfoItemWithHeight;
diff --git a/native/utils/drawer-utils.react.js b/native/utils/drawer-utils.react.js
index 0bb024617..a8e95571d 100644
--- a/native/utils/drawer-utils.react.js
+++ b/native/utils/drawer-utils.react.js
@@ -1,118 +1,119 @@
 // @flow
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypeIsCommunityRoot } from 'lib/types/thread-types-enum.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import type { CommunityDrawerItemData } from 'lib/utils/drawer-utils.react.js';
 
 import type { TextStyle } from '../types/styles.js';
 
 export type CommunityDrawerItemDataFlattened = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +hasSubchannelsButton: boolean,
   +labelStyle: TextStyle,
   +hasChildren: boolean,
   +itemStyle: {
     +indentation: number,
     +background: 'none' | 'beginning' | 'middle' | 'end',
   },
 };
 
 const defaultIndentation = 8;
 const addedIndentation = 16;
 
 function flattenDrawerItemsData(
   data: $ReadOnlyArray<CommunityDrawerItemData<TextStyle>>,
   expanded: $ReadOnlyArray<string>,
   prevIndentation: ?number,
 ): $ReadOnlyArray<CommunityDrawerItemDataFlattened> {
   let results = [];
 
   for (const item of data) {
     const isOpen = expanded.includes(item.threadInfo.id);
     const isCommunity = threadTypeIsCommunityRoot(item.threadInfo.type);
 
     let background = 'middle';
     if (isCommunity) {
       background = isOpen ? 'beginning' : 'none';
     }
 
     let indentation = defaultIndentation;
     if (!isCommunity && prevIndentation) {
       indentation = prevIndentation + addedIndentation;
     }
 
     results.push({
       threadInfo: item.threadInfo,
       hasSubchannelsButton: item.hasSubchannelsButton,
       labelStyle: item.labelStyle,
       hasChildren: item.itemChildren?.length > 0,
       itemStyle: {
         indentation,
         background,
       },
     });
 
     if (!isOpen) {
       continue;
     }
     results = results.concat(
       flattenDrawerItemsData(item.itemChildren, expanded, indentation),
     );
     if (isCommunity) {
       results[results.length - 1] = {
         ...results[results.length - 1],
         itemStyle: {
           ...results[results.length - 1].itemStyle,
           background: 'end',
         },
       };
     }
   }
 
   return results;
 }
 
 function findAllDescendantIDs<T>(
   data: $ReadOnlyArray<CommunityDrawerItemData<T>>,
 ): $ReadOnlyArray<string> {
   const results = [];
   for (const item of data) {
     results.push(item.threadInfo.id);
     results.concat(findAllDescendantIDs(item.itemChildren));
   }
   return results;
 }
 
 function findThreadChildrenItems<T>(
   data: $ReadOnlyArray<CommunityDrawerItemData<T>>,
   id: string,
 ): ?$ReadOnlyArray<CommunityDrawerItemData<T>> {
   for (const item of data) {
     if (item.threadInfo.id === id) {
       return item.itemChildren;
     }
     const result = findThreadChildrenItems(item.itemChildren, id);
     if (result) {
       return result;
     }
   }
   return undefined;
 }
 
 function filterOutThreadAndDescendantIDs<T>(
   idsToFilter: $ReadOnlyArray<string>,
   allItems: $ReadOnlyArray<CommunityDrawerItemData<T>>,
   threadID: string,
 ): $ReadOnlyArray<string> {
   const childItems = findThreadChildrenItems(allItems, threadID);
   if (!childItems) {
     return [];
   }
   const descendants = findAllDescendantIDs(childItems);
   const descendantsSet = new Set(descendants);
   return idsToFilter.filter(
     item => !descendantsSet.has(item) && item !== threadID,
   );
 }
 
 export { flattenDrawerItemsData, filterOutThreadAndDescendantIDs };
diff --git a/web/chat/chat-input-bar.react.js b/web/chat/chat-input-bar.react.js
index 57c0b5f81..4893031a0 100644
--- a/web/chat/chat-input-bar.react.js
+++ b/web/chat/chat-input-bar.react.js
@@ -1,687 +1,688 @@
 // @flow
 
 import invariant from 'invariant';
 import _difference from 'lodash/fp/difference.js';
 import * as React from 'react';
 
 import {
   joinThreadActionTypes,
   useJoinThread,
   newThreadActionTypes,
 } from 'lib/actions/thread-actions.js';
 import SWMansionIcon from 'lib/components/SWMansionIcon.react.js';
 import {
   useChatMentionContext,
   useThreadChatMentionCandidates,
 } from 'lib/hooks/chat-mention-hooks.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import { userStoreMentionSearchIndex } from 'lib/selectors/user-selectors.js';
 import {
   getMentionTypeaheadUserSuggestions,
   getTypeaheadRegexMatches,
   getUserMentionsCandidates,
   getMentionTypeaheadChatSuggestions,
   type MentionTypeaheadSuggestionItem,
   type TypeaheadMatchedStrings,
 } from 'lib/shared/mention-utils.js';
 import { localIDPrefix, trimMessage } from 'lib/shared/message-utils.js';
 import {
   threadHasPermission,
   viewerIsMember,
   threadFrozenDueToViewerBlock,
   threadActualMembers,
   checkIfDefaultMembersAreVoiced,
 } from 'lib/shared/thread-utils.js';
 import type { CalendarQuery } from 'lib/types/entry-types.js';
 import type { LoadingStatus } from 'lib/types/loading-types.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import {
   type ThreadInfo,
   type ClientThreadJoinRequest,
   type ThreadJoinPayload,
 } from 'lib/types/thread-types.js';
 import { type UserInfos } from 'lib/types/user-types.js';
 import {
   type DispatchActionPromise,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 
 import css from './chat-input-bar.css';
 import TypeaheadTooltip from './typeahead-tooltip.react.js';
 import Button from '../components/button.react.js';
 import {
   type InputState,
   type PendingMultimediaUpload,
 } from '../input/input-state.js';
 import LoadingIndicator from '../loading-indicator.react.js';
 import { allowedMimeTypeString } from '../media/file-utils.js';
 import Multimedia from '../media/multimedia.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { nonThreadCalendarQuery } from '../selectors/nav-selectors.js';
 import {
   webMentionTypeaheadRegex,
   getMentionTypeaheadTooltipActions,
   getMentionTypeaheadTooltipButtons,
 } from '../utils/typeahead-utils.js';
 
 type BaseProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +inputState: InputState,
 };
 type Props = {
   ...BaseProps,
   +viewerID: ?string,
   +joinThreadLoadingStatus: LoadingStatus,
   +threadCreationInProgress: boolean,
   +calendarQuery: () => CalendarQuery,
   +nextLocalID: number,
   +isThreadActive: boolean,
   +userInfos: UserInfos,
   +dispatchActionPromise: DispatchActionPromise,
   +joinThread: (request: ClientThreadJoinRequest) => Promise<ThreadJoinPayload>,
   +typeaheadMatchedStrings: ?TypeaheadMatchedStrings,
   +suggestions: $ReadOnlyArray<MentionTypeaheadSuggestionItem>,
   +parentThreadInfo: ?ThreadInfo,
 };
 
 class ChatInputBar extends React.PureComponent<Props> {
   textarea: ?HTMLTextAreaElement;
   multimediaInput: ?HTMLInputElement;
 
   componentDidMount() {
     this.updateHeight();
     if (this.props.isThreadActive) {
       this.addReplyListener();
     }
   }
 
   componentWillUnmount() {
     if (this.props.isThreadActive) {
       this.removeReplyListener();
     }
   }
 
   componentDidUpdate(prevProps: Props) {
     if (this.props.isThreadActive && !prevProps.isThreadActive) {
       this.addReplyListener();
     } else if (!this.props.isThreadActive && prevProps.isThreadActive) {
       this.removeReplyListener();
     }
 
     const { inputState } = this.props;
     const prevInputState = prevProps.inputState;
     if (inputState.draft !== prevInputState.draft) {
       this.updateHeight();
     }
 
     if (
       inputState.draft !== prevInputState.draft ||
       inputState.textCursorPosition !== prevInputState.textCursorPosition
     ) {
       inputState.setTypeaheadState({
         canBeVisible: true,
       });
     }
 
     const curUploadIDs = ChatInputBar.unassignedUploadIDs(
       inputState.pendingUploads,
     );
     const prevUploadIDs = ChatInputBar.unassignedUploadIDs(
       prevInputState.pendingUploads,
     );
     if (
       this.multimediaInput &&
       _difference(prevUploadIDs)(curUploadIDs).length > 0
     ) {
       // Whenever a pending upload is removed, we reset the file
       // HTMLInputElement's value field, so that if the same upload occurs again
       // the onChange call doesn't get filtered
       this.multimediaInput.value = '';
     } else if (
       this.textarea &&
       _difference(curUploadIDs)(prevUploadIDs).length > 0
     ) {
       // Whenever a pending upload is added, we focus the textarea
       this.textarea.focus();
       return;
     }
 
     if (
       (this.props.threadInfo.id !== prevProps.threadInfo.id ||
         (inputState.textCursorPosition !== prevInputState.textCursorPosition &&
           this.textarea?.selectionStart === this.textarea?.selectionEnd)) &&
       this.textarea
     ) {
       this.textarea.focus();
 
       this.textarea?.setSelectionRange(
         inputState.textCursorPosition,
         inputState.textCursorPosition,
         'none',
       );
     }
   }
 
   static unassignedUploadIDs(
     pendingUploads: $ReadOnlyArray<PendingMultimediaUpload>,
   ) {
     return pendingUploads
       .filter(
         (pendingUpload: PendingMultimediaUpload) => !pendingUpload.messageID,
       )
       .map((pendingUpload: PendingMultimediaUpload) => pendingUpload.localID);
   }
 
   updateHeight() {
     const textarea = this.textarea;
     if (textarea) {
       textarea.style.height = 'auto';
       const newHeight = Math.min(textarea.scrollHeight, 150);
       textarea.style.height = `${newHeight}px`;
     }
   }
 
   addReplyListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in addReplyListener',
     );
     this.props.inputState.addReplyListener(this.focusAndUpdateText);
   }
 
   removeReplyListener() {
     invariant(
       this.props.inputState,
       'inputState should be set in removeReplyListener',
     );
     this.props.inputState.removeReplyListener(this.focusAndUpdateText);
   }
 
   render() {
     const isMember = viewerIsMember(this.props.threadInfo);
     const canJoin = threadHasPermission(
       this.props.threadInfo,
       threadPermissions.JOIN_THREAD,
     );
 
     let joinButton = null;
     if (!isMember && canJoin && !this.props.threadCreationInProgress) {
       let buttonContent;
       if (this.props.joinThreadLoadingStatus === 'loading') {
         buttonContent = (
           <LoadingIndicator
             status={this.props.joinThreadLoadingStatus}
             size="medium"
             color="white"
           />
         );
       } else {
         buttonContent = (
           <>
             <SWMansionIcon icon="plus" size={24} />
             <p className={css.joinButtonText}>Join Chat</p>
           </>
         );
       }
       joinButton = (
         <div className={css.joinButtonContainer}>
           <Button
             variant="filled"
             buttonColor={{ backgroundColor: `#${this.props.threadInfo.color}` }}
             onClick={this.onClickJoin}
           >
             {buttonContent}
           </Button>
         </div>
       );
     }
 
     const { pendingUploads, cancelPendingUpload } = this.props.inputState;
     const multimediaPreviews = pendingUploads.map(pendingUpload => {
       const { uri, mediaType, thumbHash, dimensions } = pendingUpload;
       let mediaSource = { thumbHash, dimensions };
       if (mediaType !== 'encrypted_photo' && mediaType !== 'encrypted_video') {
         mediaSource = {
           ...mediaSource,
           type: mediaType,
           uri,
           thumbnailURI: null,
         };
       } else {
         const { encryptionKey } = pendingUpload;
         invariant(
           encryptionKey,
           'encryptionKey should be set for encrypted media',
         );
         mediaSource = {
           ...mediaSource,
           type: mediaType,
           blobURI: uri,
           encryptionKey,
           thumbnailBlobURI: null,
           thumbnailEncryptionKey: null,
         };
       }
       return (
         <Multimedia
           mediaSource={mediaSource}
           pendingUpload={pendingUpload}
           remove={cancelPendingUpload}
           multimediaCSSClass={css.multimedia}
           multimediaImageCSSClass={css.multimediaImage}
           key={pendingUpload.localID}
         />
       );
     });
     const previews =
       multimediaPreviews.length > 0 ? (
         <div className={css.previews}>{multimediaPreviews}</div>
       ) : null;
 
     let content;
     // If the thread is created by somebody else while the viewer is attempting
     // to create it, the threadInfo might be modified in-place and won't
     // list the viewer as a member, which will end up hiding the input. In
     // this case, we will assume that our creation action will get translated,
     // into a join and as long as members are voiced, we can show the input.
     const defaultMembersAreVoiced = checkIfDefaultMembersAreVoiced(
       this.props.threadInfo,
     );
 
     let sendButton;
     if (this.props.inputState.draft.length) {
       sendButton = (
         <a onClick={this.onSend} className={css.sendButton}>
           <SWMansionIcon
             icon="send-2"
             size={22}
             color={`#${this.props.threadInfo.color}`}
           />
         </a>
       );
     }
 
     if (
       threadHasPermission(this.props.threadInfo, threadPermissions.VOICED) ||
       (this.props.threadCreationInProgress && defaultMembersAreVoiced)
     ) {
       content = (
         <div className={css.inputBarWrapper}>
           <a className={css.multimediaUpload} onClick={this.onMultimediaClick}>
             <input
               type="file"
               onChange={this.onMultimediaFileChange}
               ref={this.multimediaInputRef}
               accept={allowedMimeTypeString}
               multiple
             />
             <SWMansionIcon
               icon="image-1"
               size={22}
               color={`#${this.props.threadInfo.color}`}
               disableFill
             />
           </a>
           <div className={css.inputBarTextInput}>
             <textarea
               rows="1"
               placeholder="Type your message"
               value={this.props.inputState.draft}
               onChange={this.onChangeMessageText}
               onKeyDown={this.onKeyDown}
               onClick={this.onClickTextarea}
               onSelect={this.onSelectTextarea}
               ref={this.textareaRef}
               autoFocus
             />
           </div>
           {sendButton}
         </div>
       );
     } else if (
       threadFrozenDueToViewerBlock(
         this.props.threadInfo,
         this.props.viewerID,
         this.props.userInfos,
       ) &&
       threadActualMembers(this.props.threadInfo.members).length === 2
     ) {
       content = (
         <span className={css.explanation}>
           You can&rsquo;t send messages to a user that you&rsquo;ve blocked.
         </span>
       );
     } else if (isMember) {
       content = (
         <span className={css.explanation}>
           You don&rsquo;t have permission to send messages.
         </span>
       );
     } else if (defaultMembersAreVoiced && canJoin) {
       content = null;
     } else {
       content = (
         <span className={css.explanation}>
           You don&rsquo;t have permission to send messages.
         </span>
       );
     }
 
     let typeaheadTooltip;
     if (
       this.props.inputState.typeaheadState.canBeVisible &&
       this.props.suggestions.length > 0 &&
       this.props.typeaheadMatchedStrings &&
       this.textarea
     ) {
       typeaheadTooltip = (
         <TypeaheadTooltip
           inputState={this.props.inputState}
           textarea={this.textarea}
           matchedStrings={this.props.typeaheadMatchedStrings}
           suggestions={this.props.suggestions}
           typeaheadTooltipActionsGetter={getMentionTypeaheadTooltipActions}
           typeaheadTooltipButtonsGetter={getMentionTypeaheadTooltipButtons}
         />
       );
     }
 
     return (
       <div className={css.inputBar}>
         {joinButton}
         {previews}
         {content}
         {typeaheadTooltip}
       </div>
     );
   }
 
   textareaRef = (textarea: ?HTMLTextAreaElement) => {
     this.textarea = textarea;
     if (textarea) {
       textarea.focus();
     }
   };
 
   onChangeMessageText = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setDraft(event.currentTarget.value);
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   onClickTextarea = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   onSelectTextarea = (event: SyntheticEvent<HTMLTextAreaElement>) => {
     this.props.inputState.setTextCursorPosition(
       event.currentTarget.selectionStart,
     );
   };
 
   focusAndUpdateText = (text: string) => {
     // We need to call focus() first on Safari, otherwise the cursor
     // ends up at the start instead of the end for some reason
     const { textarea } = this;
     invariant(textarea, 'textarea should be set');
     textarea.focus();
 
     // We reset the textarea to an empty string at the start so that the cursor
     // always ends up at the end, even if the text doesn't actually change
     textarea.value = '';
     const currentText = this.props.inputState.draft;
     if (!currentText.startsWith(text)) {
       const prependedText = text.concat(currentText);
       this.props.inputState.setDraft(prependedText);
       textarea.value = prependedText;
     } else {
       textarea.value = currentText;
     }
 
     // The above strategies make sure the cursor is at the end,
     // but we also need to make sure that we're scrolled to the bottom
     textarea.scrollTop = textarea.scrollHeight;
   };
 
   onKeyDown = (event: SyntheticKeyboardEvent<HTMLTextAreaElement>) => {
     const { accept, close, moveChoiceUp, moveChoiceDown } =
       this.props.inputState.typeaheadState;
 
     const actions = {
       Enter: accept,
       Tab: accept,
       ArrowDown: moveChoiceDown,
       ArrowUp: moveChoiceUp,
       Escape: close,
     };
 
     if (
       this.props.inputState.typeaheadState.canBeVisible &&
       actions[event.key]
     ) {
       event.preventDefault();
       actions[event.key]();
     } else if (event.key === 'Enter' && !event.shiftKey) {
       event.preventDefault();
       this.send();
     }
   };
 
   onSend = (event: SyntheticEvent<HTMLAnchorElement>) => {
     event.preventDefault();
     this.send();
   };
 
   send() {
     let { nextLocalID } = this.props;
 
     const text = trimMessage(this.props.inputState.draft);
     if (text) {
       this.dispatchTextMessageAction(text, nextLocalID);
       nextLocalID++;
     }
     if (this.props.inputState.pendingUploads.length > 0) {
       this.props.inputState.createMultimediaMessage(
         nextLocalID,
         this.props.threadInfo,
       );
     }
   }
 
   dispatchTextMessageAction(text: string, nextLocalID: number) {
     this.props.inputState.setDraft('');
 
     const localID = `${localIDPrefix}${nextLocalID}`;
     const creatorID = this.props.viewerID;
     invariant(creatorID, 'should have viewer ID in order to send a message');
 
     this.props.inputState.sendTextMessage(
       {
         type: messageTypes.TEXT,
         localID,
         threadID: this.props.threadInfo.id,
         text,
         creatorID,
         time: Date.now(),
       },
       this.props.threadInfo,
       this.props.parentThreadInfo,
     );
   }
 
   multimediaInputRef = (multimediaInput: ?HTMLInputElement) => {
     this.multimediaInput = multimediaInput;
   };
 
   onMultimediaClick = () => {
     if (this.multimediaInput) {
       this.multimediaInput.click();
     }
   };
 
   onMultimediaFileChange = async (
     event: SyntheticInputEvent<HTMLInputElement>,
   ) => {
     const result = await this.props.inputState.appendFiles(
       this.props.threadInfo,
       [...event.target.files],
     );
     if (!result && this.multimediaInput) {
       this.multimediaInput.value = '';
     }
   };
 
   onClickJoin = () => {
     this.props.dispatchActionPromise(joinThreadActionTypes, this.joinAction());
   };
 
   async joinAction() {
     const query = this.props.calendarQuery();
     return await this.props.joinThread({
       threadID: this.props.threadInfo.id,
       calendarQuery: {
         startDate: query.startDate,
         endDate: query.endDate,
         filters: [
           ...query.filters,
           { type: 'threads', threadIDs: [this.props.threadInfo.id] },
         ],
       },
     });
   }
 }
 
 const joinThreadLoadingStatusSelector = createLoadingStatusSelector(
   joinThreadActionTypes,
 );
 const createThreadLoadingStatusSelector =
   createLoadingStatusSelector(newThreadActionTypes);
 
 const ConnectedChatInputBar: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedChatInputBar(props) {
     const viewerID = useSelector(
       state => state.currentUserInfo && state.currentUserInfo.id,
     );
     const nextLocalID = useSelector(state => state.nextLocalID);
     const isThreadActive = useSelector(
       state => props.threadInfo.id === state.navInfo.activeChatThreadID,
     );
     const userInfos = useSelector(state => state.userStore.userInfos);
     const joinThreadLoadingStatus = useSelector(
       joinThreadLoadingStatusSelector,
     );
     const createThreadLoadingStatus = useSelector(
       createThreadLoadingStatusSelector,
     );
     const threadCreationInProgress = createThreadLoadingStatus === 'loading';
     const calendarQuery = useSelector(nonThreadCalendarQuery);
     const dispatchActionPromise = useDispatchActionPromise();
     const callJoinThread = useJoinThread();
     const userSearchIndex = useSelector(userStoreMentionSearchIndex);
     const { getChatMentionSearchIndex } = useChatMentionContext();
     const chatMentionSearchIndex = getChatMentionSearchIndex(props.threadInfo);
 
     const { parentThreadID } = props.threadInfo;
     const parentThreadInfo = useSelector(state =>
       parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
     );
 
     const userMentionsCandidates = getUserMentionsCandidates(
       props.threadInfo,
       parentThreadInfo,
     );
 
     const chatMentionCandidates = useThreadChatMentionCandidates(
       props.threadInfo,
     );
 
     const typeaheadRegexMatches = React.useMemo(
       () =>
         getTypeaheadRegexMatches(
           props.inputState.draft,
           {
             start: props.inputState.textCursorPosition,
             end: props.inputState.textCursorPosition,
           },
           webMentionTypeaheadRegex,
         ),
       [props.inputState.textCursorPosition, props.inputState.draft],
     );
 
     const typeaheadMatchedStrings: ?TypeaheadMatchedStrings = React.useMemo(
       () =>
         typeaheadRegexMatches !== null
           ? {
               textBeforeAtSymbol:
                 typeaheadRegexMatches.groups?.textPrefix ?? '',
               query: typeaheadRegexMatches.groups?.mentionText ?? '',
             }
           : null,
       [typeaheadRegexMatches],
     );
 
     React.useEffect(() => {
       if (props.inputState.typeaheadState.keepUpdatingThreadMembers) {
         const setter = props.inputState.setTypeaheadState;
         setter({
           frozenUserMentionsCandidates: userMentionsCandidates,
           frozenChatMentionsCandidates: chatMentionCandidates,
         });
       }
     }, [
       userMentionsCandidates,
       props.inputState.setTypeaheadState,
       props.inputState.typeaheadState.keepUpdatingThreadMembers,
       chatMentionCandidates,
     ]);
 
     const suggestions = React.useMemo(() => {
       if (!typeaheadMatchedStrings) {
         return [];
       }
       const suggestedUsers = getMentionTypeaheadUserSuggestions(
         userSearchIndex,
         props.inputState.typeaheadState.frozenUserMentionsCandidates,
         viewerID,
         typeaheadMatchedStrings.query,
       );
       const suggestedChats = getMentionTypeaheadChatSuggestions(
         chatMentionSearchIndex,
         props.inputState.typeaheadState.frozenChatMentionsCandidates,
         typeaheadMatchedStrings.query,
       );
       return [...suggestedUsers, ...suggestedChats];
     }, [
       typeaheadMatchedStrings,
       userSearchIndex,
       props.inputState.typeaheadState.frozenUserMentionsCandidates,
       props.inputState.typeaheadState.frozenChatMentionsCandidates,
       viewerID,
       chatMentionSearchIndex,
     ]);
 
     return (
       <ChatInputBar
         {...props}
         viewerID={viewerID}
         joinThreadLoadingStatus={joinThreadLoadingStatus}
         threadCreationInProgress={threadCreationInProgress}
         calendarQuery={calendarQuery}
         nextLocalID={nextLocalID}
         isThreadActive={isThreadActive}
         userInfos={userInfos}
         dispatchActionPromise={dispatchActionPromise}
         joinThread={callJoinThread}
         typeaheadMatchedStrings={typeaheadMatchedStrings}
         suggestions={suggestions}
         parentThreadInfo={parentThreadInfo}
       />
     );
   });
 
 export default ConnectedChatInputBar;
diff --git a/web/chat/chat-message-list.react.js b/web/chat/chat-message-list.react.js
index 893dcd11e..2a4d93ab1 100644
--- a/web/chat/chat-message-list.react.js
+++ b/web/chat/chat-message-list.react.js
@@ -1,486 +1,487 @@
 // @flow
 
 import classNames from 'classnames';
 import { detect as detectBrowser } from 'detect-browser';
 import invariant from 'invariant';
 import _debounce from 'lodash/debounce.js';
 import * as React from 'react';
 
 import {
   fetchMessagesBeforeCursorActionTypes,
   useFetchMessagesBeforeCursor,
   fetchMostRecentMessagesActionTypes,
   useFetchMostRecentMessages,
 } from 'lib/actions/message-actions.js';
 import type {
   FetchMostRecentMessagesInput,
   FetchMessagesBeforeCursorInput,
 } from 'lib/actions/message-actions.js';
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import { useOldestMessageServerID } from 'lib/hooks/message-hooks.js';
 import { registerFetchKey } from 'lib/reducers/loading-reducer.js';
 import {
   type ChatMessageItem,
   useMessageListData,
 } from 'lib/selectors/chat-selectors.js';
 import { messageKey } from 'lib/shared/message-utils.js';
 import { threadIsPending } from 'lib/shared/thread-utils.js';
 import type { FetchMessageInfosPayload } from 'lib/types/message-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import {
   type DispatchActionPromise,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 
 import { editBoxHeight, defaultMaxTextAreaHeight } from './chat-constants.js';
 import css from './chat-message-list.css';
 import type { ScrollToMessageCallback } from './edit-message-provider.js';
 import { useEditModalContext } from './edit-message-provider.js';
 import { MessageListContext } from './message-list-types.js';
 import Message from './message.react.js';
 import RelationshipPrompt from './relationship-prompt/relationship-prompt.js';
 import { useTooltipContext } from './tooltip-provider.js';
 import { type InputState, InputStateContext } from '../input/input-state.js';
 import LoadingIndicator from '../loading-indicator.react.js';
 import { useTextMessageRulesFunc } from '../markdown/rules.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 
 const browser = detectBrowser();
 const supportsReverseFlex =
   !browser || browser.name !== 'firefox' || parseInt(browser.version) >= 81;
 
 // Margin between the top of the maximum height edit box
 // and the top of the container
 const editBoxTopMargin = 10;
 
 type BaseProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 type Props = {
   ...BaseProps,
   +activeChatThreadID: ?string,
   +messageListData: ?$ReadOnlyArray<ChatMessageItem>,
   +startReached: boolean,
   +dispatchActionPromise: DispatchActionPromise,
   +fetchMessagesBeforeCursor: (
     input: FetchMessagesBeforeCursorInput,
   ) => Promise<FetchMessageInfosPayload>,
   +fetchMostRecentMessages: (
     input: FetchMostRecentMessagesInput,
   ) => Promise<FetchMessageInfosPayload>,
   +inputState: ?InputState,
   +clearTooltip: () => mixed,
   +oldestMessageServerID: ?string,
   +isEditState: boolean,
   +addScrollToMessageListener: ScrollToMessageCallback => mixed,
   +removeScrollToMessageListener: ScrollToMessageCallback => mixed,
 };
 type Snapshot = {
   +scrollTop: number,
   +scrollHeight: number,
 };
 
 type State = {
   +scrollingEndCallback: ?() => mixed,
 };
 
 class ChatMessageList extends React.PureComponent<Props, State> {
   container: ?HTMLDivElement;
   messageContainer: ?HTMLDivElement;
   loadingFromScroll = false;
 
   constructor(props: Props) {
     super(props);
     this.state = {
       scrollingEndCallback: null,
     };
   }
 
   componentDidMount() {
     this.scrollToBottom();
     this.props.addScrollToMessageListener(this.scrollToMessage);
   }
 
   componentWillUnmount() {
     this.props.removeScrollToMessageListener(this.scrollToMessage);
   }
 
   getSnapshotBeforeUpdate(prevProps: Props) {
     if (
       ChatMessageList.hasNewMessage(this.props, prevProps) &&
       this.messageContainer
     ) {
       const { scrollTop, scrollHeight } = this.messageContainer;
       return { scrollTop, scrollHeight };
     }
     return null;
   }
 
   static hasNewMessage(props: Props, prevProps: Props) {
     const { messageListData } = props;
     if (!messageListData || messageListData.length === 0) {
       return false;
     }
     const prevMessageListData = prevProps.messageListData;
     if (!prevMessageListData || prevMessageListData.length === 0) {
       return true;
     }
     return (
       ChatMessageList.keyExtractor(prevMessageListData[0]) !==
       ChatMessageList.keyExtractor(messageListData[0])
     );
   }
 
   componentDidUpdate(prevProps: Props, prevState, snapshot: ?Snapshot) {
     const { messageListData } = this.props;
     const prevMessageListData = prevProps.messageListData;
 
     const { messageContainer } = this;
     if (messageContainer && prevMessageListData !== messageListData) {
       this.onScroll();
     }
 
     // We'll scroll to the bottom if the user was already scrolled to the bottom
     // before the new message, or if the new message was composed locally
     const hasNewMessage = ChatMessageList.hasNewMessage(this.props, prevProps);
     if (
       this.props.activeChatThreadID !== prevProps.activeChatThreadID ||
       (hasNewMessage &&
         messageListData &&
         messageListData[0].itemType === 'message' &&
         messageListData[0].messageInfo.localID) ||
       (hasNewMessage &&
         snapshot &&
         Math.abs(snapshot.scrollTop) <= 1 &&
         !this.props.isEditState)
     ) {
       this.scrollToBottom();
     } else if (hasNewMessage && messageContainer && snapshot) {
       const { scrollTop, scrollHeight } = messageContainer;
       if (
         scrollHeight > snapshot.scrollHeight &&
         scrollTop === snapshot.scrollTop
       ) {
         const newHeight = scrollHeight - snapshot.scrollHeight;
         const newScrollTop = Math.abs(scrollTop) + newHeight;
         if (supportsReverseFlex) {
           messageContainer.scrollTop = -1 * newScrollTop;
         } else {
           messageContainer.scrollTop = newScrollTop;
         }
       }
     }
   }
 
   scrollToBottom() {
     if (this.messageContainer) {
       this.messageContainer.scrollTop = 0;
     }
   }
 
   static keyExtractor(item: ChatMessageItem) {
     if (item.itemType === 'loader') {
       return 'loader';
     }
     return messageKey(item.messageInfo);
   }
 
   renderItem = item => {
     if (item.itemType === 'loader') {
       return (
         <div key="loader" className={css.loading}>
           <LoadingIndicator status="loading" size="large" color="white" />
         </div>
       );
     }
     const { threadInfo } = this.props;
     invariant(threadInfo, 'ThreadInfo should be set if messageListData is');
     return (
       <Message
         item={item}
         threadInfo={threadInfo}
         shouldDisplayPinIndicator={true}
         key={ChatMessageList.keyExtractor(item)}
       />
     );
   };
 
   scrollingEndCallbackWrapper = (
     composedMessageID: string,
     callback: (maxHeight: number) => mixed,
   ): (() => mixed) => {
     return () => {
       const maxHeight = this.getMaxEditTextAreaHeight(composedMessageID);
       callback(maxHeight);
     };
   };
 
   scrollToMessage = (
     composedMessageID: string,
     callback: (maxHeight: number) => mixed,
   ) => {
     const element = document.getElementById(composedMessageID);
     if (!element) {
       return;
     }
     const scrollingEndCallback = this.scrollingEndCallbackWrapper(
       composedMessageID,
       callback,
     );
     if (!this.willMessageEditWindowOverflow(composedMessageID)) {
       scrollingEndCallback();
       return;
     }
     this.setState(
       {
         scrollingEndCallback,
       },
       () => {
         element.scrollIntoView({ behavior: 'smooth', block: 'center' });
         // It covers the case when browser decide not to scroll to the message
         // because it's already in the view.
         // In this case, the 'scroll' event won't be triggered,
         // so we need to call the callback manually.
         this.debounceEditModeAfterScrollToMessage();
       },
     );
   };
 
   getMaxEditTextAreaHeight = (composedMessageID: string): number => {
     const { messageContainer } = this;
     if (!messageContainer) {
       return defaultMaxTextAreaHeight;
     }
     const messageElement = document.getElementById(composedMessageID);
     if (!messageElement) {
       console.log(`couldn't find the message element`);
       return defaultMaxTextAreaHeight;
     }
 
     const msgPos = messageElement.getBoundingClientRect();
     const containerPos = messageContainer.getBoundingClientRect();
 
     const messageBottom = msgPos.bottom;
     const containerTop = containerPos.top;
 
     const maxHeight =
       messageBottom - containerTop - editBoxHeight - editBoxTopMargin;
 
     return maxHeight;
   };
 
   willMessageEditWindowOverflow(composedMessageID: string) {
     const { messageContainer } = this;
     if (!messageContainer) {
       return false;
     }
     const messageElement = document.getElementById(composedMessageID);
     if (!messageElement) {
       console.log(`couldn't find the message element`);
       return false;
     }
 
     const msgPos = messageElement.getBoundingClientRect();
     const containerPos = messageContainer.getBoundingClientRect();
     const containerTop = containerPos.top;
     const containerBottom = containerPos.bottom;
 
     const availableTextAreaHeight =
       (containerBottom - containerTop) / 2 - editBoxHeight;
     const messageHeight = msgPos.height;
     const expectedMinimumHeight = Math.min(
       defaultMaxTextAreaHeight,
       availableTextAreaHeight,
     );
     const offset = Math.max(
       0,
       expectedMinimumHeight + editBoxHeight + editBoxTopMargin - messageHeight,
     );
 
     const messageTop = msgPos.top - offset;
     const messageBottom = msgPos.bottom;
 
     return messageBottom > containerBottom || messageTop < containerTop;
   }
 
   render() {
     const { messageListData, threadInfo, inputState, isEditState } = this.props;
     if (!messageListData) {
       return <div className={css.container} />;
     }
     invariant(inputState, 'InputState should be set');
     const messages = messageListData.map(this.renderItem);
 
     let relationshipPrompt = null;
     if (threadInfo.type === threadTypes.PERSONAL) {
       relationshipPrompt = <RelationshipPrompt threadInfo={threadInfo} />;
     }
 
     const messageContainerStyle = classNames({
       [css.disableAnchor]:
         this.state.scrollingEndCallback !== null || isEditState,
       [css.messageContainer]: true,
       [css.mirroredMessageContainer]: !supportsReverseFlex,
     });
     return (
       <div className={css.outerMessageContainer}>
         {relationshipPrompt}
         <div className={messageContainerStyle} ref={this.messageContainerRef}>
           {messages}
         </div>
       </div>
     );
   }
 
   messageContainerRef = (messageContainer: ?HTMLDivElement) => {
     this.messageContainer = messageContainer;
     // In case we already have all the most recent messages,
     // but they're not enough
     this.possiblyLoadMoreMessages();
     if (messageContainer) {
       messageContainer.addEventListener('scroll', this.onScroll);
     }
   };
 
   onScroll = () => {
     if (!this.messageContainer) {
       return;
     }
     this.props.clearTooltip();
     this.possiblyLoadMoreMessages();
     this.debounceEditModeAfterScrollToMessage();
   };
 
   debounceEditModeAfterScrollToMessage = _debounce(() => {
     if (this.state.scrollingEndCallback) {
       this.state.scrollingEndCallback();
     }
     this.setState({ scrollingEndCallback: null });
   }, 100);
 
   async possiblyLoadMoreMessages() {
     if (!this.messageContainer) {
       return;
     }
 
     const { scrollTop, scrollHeight, clientHeight } = this.messageContainer;
     if (
       this.props.startReached ||
       Math.abs(scrollTop) + clientHeight + 55 < scrollHeight
     ) {
       return;
     }
 
     if (this.loadingFromScroll) {
       return;
     }
     this.loadingFromScroll = true;
 
     const threadID = this.props.activeChatThreadID;
     invariant(threadID, 'should be set');
 
     try {
       const { oldestMessageServerID } = this.props;
       if (oldestMessageServerID) {
         await this.props.dispatchActionPromise(
           fetchMessagesBeforeCursorActionTypes,
           this.props.fetchMessagesBeforeCursor({
             threadID,
             beforeMessageID: oldestMessageServerID,
           }),
         );
       } else {
         await this.props.dispatchActionPromise(
           fetchMostRecentMessagesActionTypes,
           this.props.fetchMostRecentMessages({ threadID }),
         );
       }
     } finally {
       this.loadingFromScroll = false;
     }
   }
 }
 
 registerFetchKey(fetchMessagesBeforeCursorActionTypes);
 registerFetchKey(fetchMostRecentMessagesActionTypes);
 const ConnectedChatMessageList: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedChatMessageList(
     props: BaseProps,
   ): React.Node {
     const { threadInfo } = props;
     const messageListData = useMessageListData({
       threadInfo,
       searching: false,
       userInfoInputArray: [],
     });
 
     const startReached = !!useSelector(state => {
       const activeID = threadInfo.id;
       if (!activeID) {
         return null;
       }
 
       if (threadIsPending(activeID)) {
         return true;
       }
 
       const threadMessageInfo = state.messageStore.threads[activeID];
       if (!threadMessageInfo) {
         return null;
       }
       return threadMessageInfo.startReached;
     });
 
     const dispatchActionPromise = useDispatchActionPromise();
     const callFetchMessagesBeforeCursor = useFetchMessagesBeforeCursor();
     const callFetchMostRecentMessages = useFetchMostRecentMessages();
 
     const inputState = React.useContext(InputStateContext);
 
     const { clearTooltip } = useTooltipContext();
 
     const chatMentionCandidates = useThreadChatMentionCandidates(threadInfo);
     const getTextMessageMarkdownRules = useTextMessageRulesFunc(
       threadInfo,
       chatMentionCandidates,
     );
     const messageListContext = React.useMemo(() => {
       if (!getTextMessageMarkdownRules) {
         return undefined;
       }
       return { getTextMessageMarkdownRules };
     }, [getTextMessageMarkdownRules]);
 
     const oldestMessageServerID = useOldestMessageServerID(threadInfo.id);
 
     const {
       editState,
       addScrollToMessageListener,
       removeScrollToMessageListener,
     } = useEditModalContext();
     const isEditState = editState !== null;
 
     return (
       <MessageListContext.Provider value={messageListContext}>
         <ChatMessageList
           activeChatThreadID={threadInfo.id}
           threadInfo={threadInfo}
           messageListData={messageListData}
           startReached={startReached}
           inputState={inputState}
           dispatchActionPromise={dispatchActionPromise}
           fetchMessagesBeforeCursor={callFetchMessagesBeforeCursor}
           fetchMostRecentMessages={callFetchMostRecentMessages}
           clearTooltip={clearTooltip}
           oldestMessageServerID={oldestMessageServerID}
           isEditState={isEditState}
           addScrollToMessageListener={addScrollToMessageListener}
           removeScrollToMessageListener={removeScrollToMessageListener}
         />
       </MessageListContext.Provider>
     );
   });
 
 export default ConnectedChatMessageList;
diff --git a/web/chat/composed-message.react.js b/web/chat/composed-message.react.js
index a1fd6d5b8..5df829046 100644
--- a/web/chat/composed-message.react.js
+++ b/web/chat/composed-message.react.js
@@ -1,258 +1,259 @@
 // @flow
 
 import classNames from 'classnames';
 import * as React from 'react';
 import {
   Circle as CircleIcon,
   CheckCircle as CheckCircleIcon,
   XCircle as XCircleIcon,
 } from 'react-feather';
 
 import { useStringForUser } from 'lib/hooks/ens-cache.js';
 import { type ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { getMessageLabel } from 'lib/shared/edit-messages-utils.js';
 import { assertComposableMessageType } from 'lib/types/message-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import { getComposedMessageID } from './chat-constants.js';
 import css from './chat-message-list.css';
 import FailedSend from './failed-send.react.js';
 import InlineEngagement from './inline-engagement.react.js';
 import UserAvatar from '../avatars/user-avatar.react.js';
 import CommIcon from '../CommIcon.react.js';
 import { type InputState, InputStateContext } from '../input/input-state.js';
 import { usePushUserProfileModal } from '../modals/user-profile/user-profile-utils.js';
 import { useMessageTooltip } from '../utils/tooltip-action-utils.js';
 import { tooltipPositions } from '../utils/tooltip-utils.js';
 
 export type ComposedMessageID = string;
 
 const availableTooltipPositionsForViewerMessage = [
   tooltipPositions.LEFT,
   tooltipPositions.LEFT_BOTTOM,
   tooltipPositions.LEFT_TOP,
   tooltipPositions.RIGHT,
   tooltipPositions.RIGHT_BOTTOM,
   tooltipPositions.RIGHT_TOP,
   tooltipPositions.BOTTOM,
   tooltipPositions.TOP,
 ];
 const availableTooltipPositionsForNonViewerMessage = [
   tooltipPositions.RIGHT,
   tooltipPositions.RIGHT_BOTTOM,
   tooltipPositions.RIGHT_TOP,
   tooltipPositions.LEFT,
   tooltipPositions.LEFT_BOTTOM,
   tooltipPositions.LEFT_TOP,
   tooltipPositions.BOTTOM,
   tooltipPositions.TOP,
 ];
 
 type BaseProps = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +shouldDisplayPinIndicator: boolean,
   +sendFailed: boolean,
   +children: React.Node,
   +fixedWidth?: boolean,
   +borderRadius: number,
 };
 type BaseConfig = React.Config<BaseProps, typeof ComposedMessage.defaultProps>;
 type Props = {
   ...BaseProps,
   // withInputState
   +inputState: ?InputState,
   +onMouseLeave: ?() => mixed,
   +onMouseEnter: (event: SyntheticEvent<HTMLDivElement>) => mixed,
   +containsInlineEngagement: boolean,
   +stringForUser: ?string,
   +onClickUser: () => mixed,
 };
 class ComposedMessage extends React.PureComponent<Props> {
   static defaultProps: { +borderRadius: number } = {
     borderRadius: 8,
   };
 
   render(): React.Node {
     assertComposableMessageType(this.props.item.messageInfo.type);
     const { borderRadius, item, threadInfo, shouldDisplayPinIndicator } =
       this.props;
     const { hasBeenEdited, isPinned } = item;
     const { id, creator } = item.messageInfo;
     const threadColor = threadInfo.color;
 
     const { isViewer } = creator;
     const contentClassName = classNames({
       [css.content]: true,
       [css.viewerContent]: isViewer,
       [css.nonViewerContent]: !isViewer,
     });
     const messageBoxContainerClassName = classNames({
       [css.messageBoxContainer]: true,
       [css.fixedWidthMessageBoxContainer]: this.props.fixedWidth,
     });
     const messageBoxClassName = classNames({
       [css.messageBox]: true,
       [css.fixedWidthMessageBox]: this.props.fixedWidth,
     });
     const messageBoxStyle = {
       borderTopRightRadius: isViewer && !item.startsCluster ? 0 : borderRadius,
       borderBottomRightRadius: isViewer && !item.endsCluster ? 0 : borderRadius,
       borderTopLeftRadius: !isViewer && !item.startsCluster ? 0 : borderRadius,
       borderBottomLeftRadius: !isViewer && !item.endsCluster ? 0 : borderRadius,
     };
 
     let authorName = null;
     const { stringForUser } = this.props;
     if (stringForUser) {
       authorName = (
         <span className={css.authorName} onClick={this.props.onClickUser}>
           {stringForUser}
         </span>
       );
     }
 
     let deliveryIcon = null;
     let failedSendInfo = null;
     if (isViewer) {
       let deliveryIconSpan;
       let deliveryIconColor = threadColor;
       if (id !== null && id !== undefined) {
         deliveryIconSpan = <CheckCircleIcon />;
       } else if (this.props.sendFailed) {
         deliveryIconSpan = <XCircleIcon />;
         deliveryIconColor = 'FF0000';
         failedSendInfo = <FailedSend item={item} threadInfo={threadInfo} />;
       } else {
         deliveryIconSpan = <CircleIcon />;
       }
       deliveryIcon = (
         <div
           className={css.iconContainer}
           style={{ color: `#${deliveryIconColor}` }}
         >
           {deliveryIconSpan}
         </div>
       );
     }
 
     let inlineEngagement = null;
     const label = getMessageLabel(hasBeenEdited, threadInfo.id);
     if (
       (this.props.containsInlineEngagement && item.threadCreatedFromMessage) ||
       Object.keys(item.reactions).length > 0 ||
       label
     ) {
       const positioning = isViewer ? 'right' : 'left';
       inlineEngagement = (
         <div className={css.sidebarMarginBottom}>
           <InlineEngagement
             messageInfo={item.messageInfo}
             threadInfo={threadInfo}
             sidebarThreadInfo={item.threadCreatedFromMessage}
             reactions={item.reactions}
             positioning={positioning}
             label={label}
           />
         </div>
       );
     }
 
     let avatar;
     if (!isViewer && item.endsCluster) {
       avatar = (
         <div className={css.avatarContainer} onClick={this.props.onClickUser}>
           <UserAvatar size="S" userID={creator.id} />
         </div>
       );
     } else if (!isViewer) {
       avatar = <div className={css.avatarOffset} />;
     }
 
     const pinIconPositioning = isViewer ? 'left' : 'right';
     const pinIconName = pinIconPositioning === 'left' ? 'pin-mirror' : 'pin';
     const pinIconContainerClassName = classNames({
       [css.pinIconContainer]: true,
       [css.pinIconLeft]: pinIconPositioning === 'left',
       [css.pinIconRight]: pinIconPositioning === 'right',
     });
     let pinIcon;
     if (isPinned && shouldDisplayPinIndicator) {
       pinIcon = (
         <div
           className={pinIconContainerClassName}
           style={{ color: `#${threadColor}` }}
         >
           <CommIcon icon={pinIconName} size={12} />
         </div>
       );
     }
 
     return (
       <React.Fragment>
         {authorName}
         <div className={contentClassName}>
           {avatar}
           <div
             className={messageBoxContainerClassName}
             onMouseEnter={this.props.onMouseEnter}
             onMouseLeave={this.props.onMouseLeave}
           >
             {pinIcon}
             <div
               className={messageBoxClassName}
               style={messageBoxStyle}
               id={getComposedMessageID(item.messageInfo)}
             >
               {this.props.children}
             </div>
           </div>
           {deliveryIcon}
         </div>
         {failedSendInfo}
         {inlineEngagement}
       </React.Fragment>
     );
   }
 }
 
 type ConnectedConfig = React.Config<
   BaseProps,
   typeof ComposedMessage.defaultProps,
 >;
 const ConnectedComposedMessage: React.ComponentType<ConnectedConfig> =
   React.memo<BaseConfig>(function ConnectedComposedMessage(props) {
     const { item, threadInfo } = props;
     const inputState = React.useContext(InputStateContext);
     const { creator } = props.item.messageInfo;
     const { isViewer } = creator;
     const availablePositions = isViewer
       ? availableTooltipPositionsForViewerMessage
       : availableTooltipPositionsForNonViewerMessage;
     const containsInlineEngagement = !!item.threadCreatedFromMessage;
 
     const { onMouseLeave, onMouseEnter } = useMessageTooltip({
       item,
       threadInfo,
       availablePositions,
     });
 
     const shouldShowUsername = !isViewer && item.startsCluster;
     const stringForUser = useStringForUser(shouldShowUsername ? creator : null);
 
     const pushUserProfileModal = usePushUserProfileModal(creator.id);
 
     return (
       <ComposedMessage
         {...props}
         inputState={inputState}
         onMouseLeave={onMouseLeave}
         onMouseEnter={onMouseEnter}
         containsInlineEngagement={containsInlineEngagement}
         stringForUser={stringForUser}
         onClickUser={pushUserProfileModal}
       />
     );
   });
 
 export default ConnectedComposedMessage;
diff --git a/web/chat/edit-message-provider.js b/web/chat/edit-message-provider.js
index 785f738d3..0655e0d97 100644
--- a/web/chat/edit-message-provider.js
+++ b/web/chat/edit-message-provider.js
@@ -1,219 +1,220 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import ModalOverlay from 'lib/components/modal-overlay.react.js';
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types';
 
 import { EditTextMessage } from './edit-text-message.react.js';
 
 export type ModalPosition = {
   +left: number,
   +top: number,
   +width: number,
   +height: number,
 };
 
 export type EditState = {
   +messageInfo: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +editedMessageDraft: ?string,
   +isError: boolean,
   +position?: ModalPosition,
   +maxHeight: number,
 };
 
 export type ScrollToMessageCallback = (
   composedMessageID: string,
   callback: (maxHeight: number) => void,
 ) => void;
 
 type EditModalContextType = {
   +renderEditModal: (params: EditState) => void,
   +clearEditModal: () => void,
   +editState: ?EditState,
   +setDraft: string => void,
   +setError: boolean => void,
   +updatePosition: ModalPosition => void,
   +scrollToMessage: ScrollToMessageCallback,
   +addScrollToMessageListener: ScrollToMessageCallback => void,
   +removeScrollToMessageListener: ScrollToMessageCallback => void,
 };
 
 const EditModalContext: React.Context<EditModalContextType> =
   React.createContext<EditModalContextType>({
     renderEditModal: () => {},
     clearEditModal: () => {},
     editState: null,
     setDraft: () => {},
     setError: () => {},
     updatePosition: () => {},
     scrollToMessage: () => {},
     addScrollToMessageListener: () => {},
     removeScrollToMessageListener: () => {},
   });
 
 type Props = {
   +children: React.Node,
 };
 function EditModalProvider(props: Props): React.Node {
   const { children } = props;
 
   const [editState, setEditState] = React.useState<?EditState>(null);
 
   const [scrollToMessageCallbacks, setScrollToMessageCallbacks] =
     React.useState<Array<ScrollToMessageCallback>>([]);
 
   const clearEditModal = React.useCallback(() => {
     setEditState(null);
   }, []);
 
   const renderEditModal = React.useCallback((newEditState: EditState): void => {
     setEditState(newEditState);
   }, []);
 
   const modal = React.useMemo(() => {
     if (!editState || !editState.position) {
       return null;
     }
 
     const tooltipNode = (
       <EditTextMessage
         item={editState.messageInfo}
         threadInfo={editState.threadInfo}
         background={false}
       />
     );
 
     const tooltipContainerStyle = {
       position: 'fixed',
       left: editState.position.left,
       top: editState.position.top,
       width: editState.position.width,
       height: editState.position.height,
     };
 
     return <div style={tooltipContainerStyle}>{tooltipNode}</div>;
   }, [editState]);
 
   const setDraft = React.useCallback(
     (draft: ?string) => {
       if (!editState) {
         return;
       }
       setEditState({
         ...editState,
         editedMessageDraft: draft,
       });
     },
     [editState, setEditState],
   );
 
   const setError = React.useCallback(
     (isError: boolean) => {
       invariant(editState, 'editState should be set in setError');
       setEditState({
         ...editState,
         isError,
       });
     },
     [editState, setEditState],
   );
 
   const updatePosition = React.useCallback(
     (position: ModalPosition) => {
       invariant(editState, 'editState should be set in updatePosition');
       setEditState({
         ...editState,
         position,
       });
     },
     [editState, setEditState],
   );
 
   const scrollToMessage: ScrollToMessageCallback = React.useCallback(
     (messageKey: string, callback: (maxHeight: number) => void) => {
       scrollToMessageCallbacks.forEach((callback2: ScrollToMessageCallback) =>
         callback2(messageKey, callback),
       );
     },
     [scrollToMessageCallbacks],
   );
 
   const addScrollToMessageListener = React.useCallback(
     (callback: ScrollToMessageCallback): void => {
       setScrollToMessageCallbacks(prevScrollToMessageCallbacks => [
         ...prevScrollToMessageCallbacks,
         callback,
       ]);
     },
     [],
   );
 
   const removeScrollToMessageListener = React.useCallback(
     (callback: ScrollToMessageCallback) => {
       setScrollToMessageCallbacks(prevScrollToMessageCallbacks =>
         prevScrollToMessageCallbacks.filter(
           candidate => candidate !== callback,
         ),
       );
     },
     [],
   );
 
   const value = React.useMemo(
     () => ({
       renderEditModal,
       clearEditModal: clearEditModal,
       editState,
       setDraft,
       setError,
       updatePosition,
       scrollToMessage,
       addScrollToMessageListener,
       removeScrollToMessageListener,
     }),
     [
       renderEditModal,
       clearEditModal,
       editState,
       setDraft,
       setError,
       updatePosition,
       scrollToMessage,
       addScrollToMessageListener,
       removeScrollToMessageListener,
     ],
   );
 
   const modalOverlay = React.useMemo(() => {
     if (!modal) {
       return null;
     }
     return (
       <ModalOverlay
         onClose={clearEditModal}
         backgroundColor="var(--modal-overlay-background-80)"
       >
         {modal}
       </ModalOverlay>
     );
   }, [clearEditModal, modal]);
 
   return (
     <EditModalContext.Provider value={value}>
       {children}
       {modalOverlay}
     </EditModalContext.Provider>
   );
 }
 
 function useEditModalContext(): EditModalContextType {
   const context = React.useContext(EditModalContext);
   invariant(context, 'EditModalContext not found');
   return context;
 }
 
 export { EditModalProvider, useEditModalContext };
diff --git a/web/chat/edit-text-message.react.js b/web/chat/edit-text-message.react.js
index b1ddd3e78..be368d430 100644
--- a/web/chat/edit-text-message.react.js
+++ b/web/chat/edit-text-message.react.js
@@ -1,196 +1,197 @@
 // @flow
 
 import classNames from 'classnames';
 import * as React from 'react';
 import { useCallback } from 'react';
 import { XCircle as XCircleIcon } from 'react-feather';
 
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { useEditMessage } from 'lib/shared/edit-messages-utils.js';
 import { trimMessage } from 'lib/shared/message-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import { editBoxBottomRowHeight } from './chat-constants.js';
 import ChatInputTextArea from './chat-input-text-area.react.js';
 import ComposedMessage from './composed-message.react.js';
 import { useEditModalContext } from './edit-message-provider.js';
 import css from './edit-text-message.css';
 import type { ButtonColor } from '../components/button.react.js';
 import Button from '../components/button.react.js';
 
 type Props = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +background: boolean,
 };
 
 const cancelButtonColor: ButtonColor = {
   backgroundColor: 'transparent',
 };
 
 const bottomRowStyle = { height: editBoxBottomRowHeight };
 
 function EditTextMessage(props: Props): React.Node {
   const { background, threadInfo, item } = props;
   const { editState, clearEditModal, setDraft, setError, updatePosition } =
     useEditModalContext();
   const editMessage = useEditMessage();
 
   const myRef = React.useRef(null);
 
   const editedMessageDraft = editState?.editedMessageDraft ?? '';
   const threadColor = threadInfo.color;
   const saveButtonColor: ButtonColor = React.useMemo(
     () => ({
       backgroundColor: `#${threadColor}`,
     }),
     [threadColor],
   );
 
   const isMessageEmpty = React.useMemo(
     () => trimMessage(editedMessageDraft) === '',
     [editedMessageDraft],
   );
 
   const isMessageEdited = React.useMemo(() => {
     const { messageInfo } = item;
     if (!messageInfo || !messageInfo.text || !editState) {
       return false;
     }
     if (!editedMessageDraft) {
       return false;
     }
     const trimmedDraft = trimMessage(editedMessageDraft);
     return trimmedDraft !== messageInfo.text;
   }, [editState, editedMessageDraft, item]);
 
   const checkAndEdit = async () => {
     const { id: messageInfoID } = item.messageInfo;
     if (isMessageEmpty) {
       return;
     }
     if (!isMessageEdited) {
       clearEditModal();
       return;
     }
     if (!messageInfoID || !editState?.editedMessageDraft) {
       return;
     }
     try {
       await editMessage(messageInfoID, editState.editedMessageDraft);
       clearEditModal();
     } catch (e) {
       setError(true);
     }
   };
 
   const updateDimensions = useCallback(() => {
     if (!myRef.current || !background) {
       return;
     }
     const { left, top, width, height } = myRef.current.getBoundingClientRect();
     updatePosition({
       left,
       top,
       width,
       height,
     });
   }, [background, updatePosition]);
 
   const preventCloseTab = React.useCallback(
     event => {
       if (!isMessageEdited) {
         return null;
       }
       event.preventDefault();
       return (event.returnValue = '');
     },
     [isMessageEdited],
   );
 
   React.useEffect(() => {
     if (!background) {
       return undefined;
     }
     window.addEventListener('resize', updateDimensions);
     window.addEventListener('beforeunload', preventCloseTab);
     return () => {
       window.removeEventListener('resize', updateDimensions);
       window.removeEventListener('beforeunload', preventCloseTab);
     };
   }, [background, preventCloseTab, updateDimensions]);
 
   React.useEffect(() => {
     updateDimensions();
     // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   let editFailed;
   if (editState?.isError) {
     editFailed = (
       <div className={css.failedText}>
         <XCircleIcon className={css.icon} />
         <div className={css.errorColor}>Edit failed.</div>
         <div className={css.whiteColor}>Please try again.</div>
       </div>
     );
   }
 
   const containerStyle = classNames(css.editMessage, {
     [css.backgroundEditMessage]: background,
   });
 
   const maxTextAreaHeight = editState?.maxHeight;
 
   return (
     <div className={containerStyle} ref={myRef}>
       <ChatInputTextArea
         focus={!background}
         currentText={editedMessageDraft}
         setCurrentText={setDraft}
         onChangePosition={updateDimensions}
         send={checkAndEdit}
         maxHeight={maxTextAreaHeight}
       />
       <div className={css.bottomRow} style={bottomRowStyle}>
         {editFailed}
         <div className={css.buttons}>
           <Button
             className={[css.saveButton, css.smallButton]}
             variant="filled"
             buttonColor={saveButtonColor}
             onClick={checkAndEdit}
             disabled={isMessageEmpty}
           >
             Save (enter)
           </Button>
           <Button
             className={css.smallButton}
             variant="filled"
             buttonColor={cancelButtonColor}
             onClick={clearEditModal}
           >
             Cancel (esc)
           </Button>
         </div>
       </div>
     </div>
   );
 }
 
 const ComposedEditTextMessage: React.ComponentType<Props> = React.memo<Props>(
   function ComposedEditTextMessage(props) {
     const { background, ...restProps } = props;
     return (
       <ComposedMessage
         {...restProps}
         sendFailed={false}
         shouldDisplayPinIndicator={false}
       >
         <EditTextMessage {...props} />
       </ComposedMessage>
     );
   },
 );
 
 export { EditTextMessage, ComposedEditTextMessage };
diff --git a/web/chat/failed-send.react.js b/web/chat/failed-send.react.js
index 88c81a571..722408775 100644
--- a/web/chat/failed-send.react.js
+++ b/web/chat/failed-send.react.js
@@ -1,162 +1,163 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { type ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import { messageID } from 'lib/shared/message-utils.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import {
   type RawComposableMessageInfo,
   assertComposableMessageType,
 } from 'lib/types/message-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './chat-message-list.css';
 import multimediaMessageSendFailed from './multimedia-message-send-failed.js';
 import textMessageSendFailed from './text-message-send-failed.js';
 import Button from '../components/button.react.js';
 import { type InputState, InputStateContext } from '../input/input-state.js';
 import { useSelector } from '../redux/redux-utils.js';
 
 type BaseProps = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 type Props = {
   ...BaseProps,
   +rawMessageInfo: RawComposableMessageInfo,
   +inputState: ?InputState,
   +parentThreadInfo: ?ThreadInfo,
 };
 class FailedSend extends React.PureComponent<Props> {
   retryingText = false;
   retryingMedia = false;
 
   componentDidUpdate(prevProps: Props) {
     if (
       (this.props.rawMessageInfo.type === messageTypes.IMAGES ||
         this.props.rawMessageInfo.type === messageTypes.MULTIMEDIA) &&
       (prevProps.rawMessageInfo.type === messageTypes.IMAGES ||
         prevProps.rawMessageInfo.type === messageTypes.MULTIMEDIA)
     ) {
       const { inputState } = this.props;
       const prevInputState = prevProps.inputState;
       invariant(
         inputState && prevInputState,
         'inputState should be set in FailedSend',
       );
       const isFailed = multimediaMessageSendFailed(this.props.item, inputState);
       const wasFailed = multimediaMessageSendFailed(
         prevProps.item,
         prevInputState,
       );
       const isDone =
         this.props.item.messageInfo.id !== null &&
         this.props.item.messageInfo.id !== undefined;
       const wasDone =
         prevProps.item.messageInfo.id !== null &&
         prevProps.item.messageInfo.id !== undefined;
       if ((isFailed && !wasFailed) || (isDone && !wasDone)) {
         this.retryingMedia = false;
       }
     } else if (
       this.props.rawMessageInfo.type === messageTypes.TEXT &&
       prevProps.rawMessageInfo.type === messageTypes.TEXT
     ) {
       const isFailed = textMessageSendFailed(this.props.item);
       const wasFailed = textMessageSendFailed(prevProps.item);
       const isDone =
         this.props.item.messageInfo.id !== null &&
         this.props.item.messageInfo.id !== undefined;
       const wasDone =
         prevProps.item.messageInfo.id !== null &&
         prevProps.item.messageInfo.id !== undefined;
       if ((isFailed && !wasFailed) || (isDone && !wasDone)) {
         this.retryingText = false;
       }
     }
   }
 
   render() {
     return (
       <div className={css.failedSend}>
         <span className={css.deliveryFailed}>Delivery failed.</span>
         <Button
           variant="text"
           buttonColor={{
             color: `#${this.props.threadInfo.color}`,
           }}
           onClick={this.retrySend}
         >
           <span className={css.retryButtonText}>Retry?</span>
         </Button>
       </div>
     );
   }
 
   retrySend = () => {
     const { inputState } = this.props;
     invariant(inputState, 'inputState should be set in FailedSend');
 
     const { rawMessageInfo } = this.props;
     if (rawMessageInfo.type === messageTypes.TEXT) {
       if (this.retryingText) {
         return;
       }
       this.retryingText = true;
       inputState.sendTextMessage(
         {
           ...rawMessageInfo,
           time: Date.now(),
         },
         this.props.threadInfo,
         this.props.parentThreadInfo,
       );
     } else if (
       rawMessageInfo.type === messageTypes.IMAGES ||
       rawMessageInfo.type === messageTypes.MULTIMEDIA
     ) {
       const { localID } = rawMessageInfo;
       invariant(localID, 'failed RawMessageInfo should have localID');
       if (this.retryingMedia) {
         return;
       }
       this.retryingMedia = true;
       inputState.retryMultimediaMessage(localID, this.props.threadInfo);
     }
   };
 }
 
 const ConnectedFailedSend: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedFailedSend(props) {
     const { messageInfo } = props.item;
     assertComposableMessageType(messageInfo.type);
     const id = messageID(messageInfo);
     const rawMessageInfo = useSelector(
       state => state.messageStore.messages[id],
     );
     assertComposableMessageType(rawMessageInfo.type);
     invariant(
       rawMessageInfo.type === messageTypes.TEXT ||
         rawMessageInfo.type === messageTypes.IMAGES ||
         rawMessageInfo.type === messageTypes.MULTIMEDIA,
       'FailedSend should only be used for composable message types',
     );
     const inputState = React.useContext(InputStateContext);
     const { parentThreadID } = props.threadInfo;
     const parentThreadInfo = useSelector(state =>
       parentThreadID ? threadInfoSelector(state)[parentThreadID] : null,
     );
     return (
       <FailedSend
         {...props}
         rawMessageInfo={rawMessageInfo}
         inputState={inputState}
         parentThreadInfo={parentThreadInfo}
       />
     );
   });
 
 export default ConnectedFailedSend;
diff --git a/web/chat/inline-engagement.react.js b/web/chat/inline-engagement.react.js
index 061c7af63..2f56dfff6 100644
--- a/web/chat/inline-engagement.react.js
+++ b/web/chat/inline-engagement.react.js
@@ -1,115 +1,115 @@
 // @flow
 
 import classNames from 'classnames';
 import * as React from 'react';
 
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import type { ReactionInfo } from 'lib/selectors/chat-selectors.js';
 import { getInlineEngagementSidebarText } from 'lib/shared/inline-engagement-utils.js';
 import type { MessageInfo } from 'lib/types/message-types.js';
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './inline-engagement.css';
 import ReactionPill from './reaction-pill.react.js';
 import CommIcon from '../CommIcon.react.js';
 import { useOnClickThread } from '../selectors/thread-selectors.js';
 
 type Props = {
   +messageInfo: MessageInfo,
   +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
-  +sidebarThreadInfo: ?ThreadInfo,
+  +sidebarThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   +reactions: ReactionInfo,
   +positioning: 'left' | 'center' | 'right',
   +label?: ?string,
 };
 function InlineEngagement(props: Props): React.Node {
   const {
     messageInfo,
     threadInfo,
     sidebarThreadInfo,
     reactions,
     positioning,
     label,
   } = props;
 
   const { popModal } = useModalContext();
 
   const isLeft = positioning === 'left';
 
   const labelClasses = classNames({
     [css.messageLabel]: true,
     [css.messageLabelLeft]: isLeft,
     [css.messageLabelRight]: !isLeft,
   });
   const editedLabel = React.useMemo(() => {
     if (!label) {
       return null;
     }
     return (
       <div className={labelClasses}>
         <span>{label}</span>
       </div>
     );
   }, [label, labelClasses]);
 
   const onClickSidebarInner = useOnClickThread(sidebarThreadInfo);
 
   const onClickSidebar = React.useCallback(
     (event: SyntheticEvent<HTMLElement>) => {
       popModal();
       onClickSidebarInner(event);
     },
     [popModal, onClickSidebarInner],
   );
 
   const repliesText = getInlineEngagementSidebarText(sidebarThreadInfo);
 
   const sidebarItem = React.useMemo(() => {
     if (!sidebarThreadInfo || !repliesText) {
       return null;
     }
 
     return (
       <a onClick={onClickSidebar} className={css.sidebarContainer}>
         <CommIcon size={14} icon="sidebar-filled" />
         {repliesText}
       </a>
     );
   }, [sidebarThreadInfo, repliesText, onClickSidebar]);
 
   const reactionsList = React.useMemo(() => {
     if (Object.keys(reactions).length === 0) {
       return null;
     }
 
     return Object.keys(reactions).map(reaction => (
       <ReactionPill
         key={reaction}
         reaction={reaction}
         messageID={messageInfo.id}
         threadID={threadInfo.id}
         reactions={reactions}
       />
     ));
   }, [reactions, messageInfo.id, threadInfo.id]);
 
   const containerClasses = classNames([
     css.inlineEngagementContainer,
     {
       [css.leftContainer]: positioning === 'left',
       [css.centerContainer]: positioning === 'center',
       [css.rightContainer]: positioning === 'right',
     },
   ]);
 
   return (
     <div className={containerClasses}>
       {editedLabel}
       {sidebarItem}
       {reactionsList}
     </div>
   );
 }
 
 export default InlineEngagement;
diff --git a/web/chat/message.react.js b/web/chat/message.react.js
index 65cb7be86..5ff15c976 100644
--- a/web/chat/message.react.js
+++ b/web/chat/message.react.js
@@ -1,80 +1,81 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { type ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import css from './chat-message-list.css';
 import { useEditModalContext } from './edit-message-provider.js';
 import { ComposedEditTextMessage } from './edit-text-message.react.js';
 import MultimediaMessage from './multimedia-message.react.js';
 import RobotextMessage from './robotext-message.react.js';
 import TextMessage from './text-message.react.js';
 
 type Props = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +shouldDisplayPinIndicator: boolean,
 };
 function Message(props: Props): React.Node {
   const { item } = props;
 
   let conversationHeader = null;
   if (item.startsConversation) {
     conversationHeader = (
       <div className={css.conversationHeader}>
         {longAbsoluteDate(item.messageInfo.time)}
       </div>
     );
   }
 
   const { editState } = useEditModalContext();
 
   let message;
   if (
     item.messageInfo.id &&
     editState?.messageInfo.messageInfo?.id === item.messageInfo.id
   ) {
     message = (
       <ComposedEditTextMessage
         item={props.item}
         threadInfo={props.threadInfo}
         background={true}
       />
     );
   } else if (item.messageInfo.type === messageTypes.TEXT) {
     message = (
       <TextMessage
         item={item}
         threadInfo={props.threadInfo}
         shouldDisplayPinIndicator={props.shouldDisplayPinIndicator}
       />
     );
   } else if (
     item.messageInfo.type === messageTypes.IMAGES ||
     item.messageInfo.type === messageTypes.MULTIMEDIA
   ) {
     message = (
       <MultimediaMessage
         item={item}
         threadInfo={props.threadInfo}
         shouldDisplayPinIndicator={props.shouldDisplayPinIndicator}
       />
     );
   } else {
     invariant(item.robotext, "Flow can't handle our fancy types :(");
     message = <RobotextMessage item={item} threadInfo={props.threadInfo} />;
   }
   return (
     <div className={css.message}>
       {conversationHeader}
       {message}
     </div>
   );
 }
 
 export default Message;
diff --git a/web/chat/multimedia-message.react.js b/web/chat/multimedia-message.react.js
index 6bce8ad91..edefaacad 100644
--- a/web/chat/multimedia-message.react.js
+++ b/web/chat/multimedia-message.react.js
@@ -1,110 +1,111 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import {
   encryptedMediaBlobURI,
   encryptedVideoThumbnailBlobURI,
 } from 'lib/media/media-utils.js';
 import { type ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './chat-message-list.css';
 import ComposedMessage from './composed-message.react.js';
 import sendFailed from './multimedia-message-send-failed.js';
 import { type InputState, InputStateContext } from '../input/input-state.js';
 import Multimedia from '../media/multimedia.react.js';
 type BaseProps = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +shouldDisplayPinIndicator: boolean,
 };
 type Props = {
   ...BaseProps,
   // withInputState
   +inputState: ?InputState,
 };
 class MultimediaMessage extends React.PureComponent<Props> {
   render() {
     const { item, inputState } = this.props;
     invariant(
       item.messageInfo.type === messageTypes.IMAGES ||
         item.messageInfo.type === messageTypes.MULTIMEDIA,
       'MultimediaMessage should only be used for multimedia messages',
     );
     const { localID, media } = item.messageInfo;
 
     invariant(inputState, 'inputState should be set in MultimediaMessage');
     const pendingUploads = localID ? inputState.assignedUploads[localID] : null;
     const multimedia = [];
     for (const singleMedia of media) {
       const pendingUpload = pendingUploads
         ? pendingUploads.find(upload => upload.localID === singleMedia.id)
         : null;
       const thumbHash = singleMedia.thumbHash ?? singleMedia.thumbnailThumbHash;
       let mediaSource;
       if (singleMedia.type === 'photo' || singleMedia.type === 'video') {
         const { type, uri, thumbnailURI, dimensions } = singleMedia;
         mediaSource = { type, uri, thumbHash, thumbnailURI, dimensions };
       } else {
         const { type, encryptionKey, thumbnailEncryptionKey, dimensions } =
           singleMedia;
         const blobURI = encryptedMediaBlobURI(singleMedia);
         const thumbnailBlobURI =
           singleMedia.type === 'encrypted_video'
             ? encryptedVideoThumbnailBlobURI(singleMedia)
             : null;
         mediaSource = {
           type,
           blobURI,
           encryptionKey,
           thumbnailBlobURI,
           thumbnailEncryptionKey,
           dimensions,
           thumbHash,
         };
       }
 
       multimedia.push(
         <Multimedia
           mediaSource={mediaSource}
           pendingUpload={pendingUpload}
           multimediaCSSClass={css.multimedia}
           multimediaImageCSSClass={css.multimediaImage}
           key={singleMedia.id}
         />,
       );
     }
 
     invariant(multimedia.length > 0, 'should be at least one multimedia...');
     const content =
       multimedia.length > 1 ? (
         <div className={css.imageGrid}>{multimedia}</div>
       ) : (
         multimedia
       );
 
     return (
       <ComposedMessage
         item={item}
         threadInfo={this.props.threadInfo}
         shouldDisplayPinIndicator={this.props.shouldDisplayPinIndicator}
         sendFailed={sendFailed(item, inputState)}
         fixedWidth={multimedia.length > 1}
         borderRadius={16}
       >
         {content}
       </ComposedMessage>
     );
   }
 }
 
 const ConnectedMultimediaMessage: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedMultimediaMessage(props) {
     const inputState = React.useContext(InputStateContext);
     return <MultimediaMessage {...props} inputState={inputState} />;
   });
 
 export default ConnectedMultimediaMessage;
diff --git a/web/chat/robotext-message.react.js b/web/chat/robotext-message.react.js
index d7a8aa958..4f667291a 100644
--- a/web/chat/robotext-message.react.js
+++ b/web/chat/robotext-message.react.js
@@ -1,164 +1,164 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import { useDispatch } from 'react-redux';
 
 import { type RobotextChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import {
   entityTextToReact,
   useENSNamesForEntityText,
 } from 'lib/utils/entity-text.js';
 
 import InlineEngagement from './inline-engagement.react.js';
 import css from './robotext-message.css';
 import Markdown from '../markdown/markdown.react.js';
 import { linkRules } from '../markdown/rules.react.js';
 import { usePushUserProfileModal } from '../modals/user-profile/user-profile-utils.js';
 import { updateNavInfoActionType } from '../redux/action-types.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { useMessageTooltip } from '../utils/tooltip-action-utils.js';
 import { tooltipPositions } from '../utils/tooltip-utils.js';
 
 const availableTooltipPositionsForRobotext = [
   tooltipPositions.LEFT,
   tooltipPositions.LEFT_TOP,
   tooltipPositions.LEFT_BOTTOM,
   tooltipPositions.RIGHT,
   tooltipPositions.RIGHT_TOP,
   tooltipPositions.RIGHT_BOTTOM,
 ];
 
 type Props = {
   +item: RobotextChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function RobotextMessage(props: Props): React.Node {
   let inlineEngagement;
   const { item, threadInfo } = props;
   const { threadCreatedFromMessage, reactions } = item;
   if (threadCreatedFromMessage || Object.keys(reactions).length > 0) {
     inlineEngagement = (
       <div className={css.sidebarMarginTop}>
         <InlineEngagement
           messageInfo={item.messageInfo}
           threadInfo={threadInfo}
           sidebarThreadInfo={threadCreatedFromMessage}
           reactions={reactions}
           positioning="center"
         />
       </div>
     );
   }
 
   const { messageInfo, robotext } = item;
   const { threadID } = messageInfo;
   const robotextWithENSNames = useENSNamesForEntityText(robotext);
   invariant(
     robotextWithENSNames,
     'useENSNamesForEntityText only returns falsey when passed falsey',
   );
   const textParts = React.useMemo(() => {
     return entityTextToReact(robotextWithENSNames, threadID, {
       // eslint-disable-next-line react/display-name
       renderText: ({ text }) => (
         <Markdown rules={linkRules(false)}>{text}</Markdown>
       ),
       // eslint-disable-next-line react/display-name
       renderThread: ({ id, name }) => <ThreadEntity id={id} name={name} />,
       // eslint-disable-next-line react/display-name
       renderUser: ({ userID, usernameText }) => (
         <UserEntity userID={userID} usernameText={usernameText} />
       ),
       // eslint-disable-next-line react/display-name
       renderColor: ({ hex }) => <ColorEntity color={hex} />,
     });
   }, [robotextWithENSNames, threadID]);
 
   const { onMouseEnter, onMouseLeave } = useMessageTooltip({
     item,
     threadInfo,
     availablePositions: availableTooltipPositionsForRobotext,
   });
 
   return (
     <div className={css.robotextContainer}>
       <div
         className={css.innerRobotextContainer}
         onMouseEnter={onMouseEnter}
         onMouseLeave={onMouseLeave}
       >
         <span>{textParts}</span>
       </div>
       {inlineEngagement}
     </div>
   );
 }
 
 type BaseInnerThreadEntityProps = {
   +id: string,
   +name: string,
 };
 type InnerThreadEntityProps = {
   ...BaseInnerThreadEntityProps,
   +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +dispatch: Dispatch,
 };
 class InnerThreadEntity extends React.PureComponent<InnerThreadEntityProps> {
   render() {
     return <a onClick={this.onClickThread}>{this.props.name}</a>;
   }
 
   onClickThread = (event: SyntheticEvent<HTMLAnchorElement>) => {
     event.preventDefault();
     const id = this.props.id;
     this.props.dispatch({
       type: updateNavInfoActionType,
       payload: {
         activeChatThreadID: id,
       },
     });
   };
 }
 const ThreadEntity = React.memo<BaseInnerThreadEntityProps>(
   function ConnectedInnerThreadEntity(props: BaseInnerThreadEntityProps) {
     const { id } = props;
     const threadInfo = useSelector(state => threadInfoSelector(state)[id]);
     const dispatch = useDispatch();
 
     return (
       <InnerThreadEntity
         {...props}
         threadInfo={threadInfo}
         dispatch={dispatch}
       />
     );
   },
 );
 
 type UserEntityProps = {
   +userID: string,
   +usernameText: string,
 };
 
 function UserEntity(props: UserEntityProps) {
   const { userID, usernameText } = props;
 
   const pushUserProfileModal = usePushUserProfileModal(userID);
 
   return <a onClick={pushUserProfileModal}>{usernameText}</a>;
 }
 
 function ColorEntity(props: { color: string }) {
   const colorStyle = { color: props.color };
   return <span style={colorStyle}>{props.color}</span>;
 }
 
 const MemoizedRobotextMessage: React.ComponentType<Props> =
   React.memo<Props>(RobotextMessage);
 
 export default MemoizedRobotextMessage;
diff --git a/web/chat/text-message.react.js b/web/chat/text-message.react.js
index 6a99b6578..c7e34f373 100644
--- a/web/chat/text-message.react.js
+++ b/web/chat/text-message.react.js
@@ -1,69 +1,70 @@
 // @flow
 
 import classNames from 'classnames';
 import invariant from 'invariant';
 import * as React from 'react';
 
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { colorIsDark } from 'lib/shared/color-utils.js';
 import { onlyEmojiRegex } from 'lib/shared/emojis.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 
 import css from './chat-message-list.css';
 import ComposedMessage from './composed-message.react.js';
 import { MessageListContext } from './message-list-types.js';
 import textMessageSendFailed from './text-message-send-failed.js';
 import Markdown from '../markdown/markdown.react.js';
 
 type Props = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +shouldDisplayPinIndicator: boolean,
 };
 function TextMessage(props: Props): React.Node {
   invariant(
     props.item.messageInfo.type === messageTypes.TEXT,
     'TextMessage should only be used for messageTypes.TEXT',
   );
   const {
     text,
     creator: { isViewer },
   } = props.item.messageInfo;
 
   const messageStyle = {};
   let darkColor = true;
   if (isViewer) {
     const threadColor = props.threadInfo.color;
     darkColor = colorIsDark(threadColor);
     messageStyle.backgroundColor = `#${threadColor}`;
   }
 
   const onlyEmoji = onlyEmojiRegex.test(text);
   const messageClassName = classNames({
     [css.textMessage]: true,
     [css.textMessageDefaultBackground]: !isViewer,
     [css.normalTextMessage]: !onlyEmoji,
     [css.emojiOnlyTextMessage]: onlyEmoji,
     [css.darkTextMessage]: darkColor,
     [css.lightTextMessage]: !darkColor,
   });
 
   const messageListContext = React.useContext(MessageListContext);
   invariant(messageListContext, 'DummyTextNode should have MessageListContext');
   const rules = messageListContext.getTextMessageMarkdownRules(darkColor);
   return (
     <ComposedMessage
       item={props.item}
       threadInfo={props.threadInfo}
       shouldDisplayPinIndicator={props.shouldDisplayPinIndicator}
       sendFailed={textMessageSendFailed(props.item)}
     >
       <div className={messageClassName} style={messageStyle}>
         <Markdown rules={rules}>{text}</Markdown>
       </div>
     </ComposedMessage>
   );
 }
 
 export default TextMessage;
diff --git a/web/chat/thread-menu.react.js b/web/chat/thread-menu.react.js
index 413ef5584..43cdd75aa 100644
--- a/web/chat/thread-menu.react.js
+++ b/web/chat/thread-menu.react.js
@@ -1,314 +1,315 @@
 // @flow
 
 import * as React from 'react';
 
 import {
   useLeaveThread,
   leaveThreadActionTypes,
 } from 'lib/actions/thread-actions.js';
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import SWMansionIcon from 'lib/components/SWMansionIcon.react.js';
 import { usePromoteSidebar } from 'lib/hooks/promote-sidebar.react.js';
 import { childThreadInfos } from 'lib/selectors/thread-selectors.js';
 import {
   threadHasPermission,
   viewerIsMember,
   threadIsChannel,
 } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 
 import css from './thread-menu.css';
 import MenuItem from '../components/menu-item.react.js';
 import Menu from '../components/menu.react.js';
 import SidebarPromoteModal from '../modals/chat/sidebar-promote-modal.react.js';
 import ConfirmLeaveThreadModal from '../modals/threads/confirm-leave-thread-modal.react.js';
 import ComposeSubchannelModal from '../modals/threads/create/compose-subchannel-modal.react.js';
 import ThreadSettingsMediaGalleryModal from '../modals/threads/gallery/thread-settings-media-gallery.react.js';
 import ThreadMembersModal from '../modals/threads/members/members-modal.react.js';
 import ThreadNotificationsModal from '../modals/threads/notifications/notifications-modal.react.js';
 import ThreadSettingsModal from '../modals/threads/settings/thread-settings-modal.react.js';
 import SidebarsModal from '../modals/threads/sidebars/sidebars-modal.react.js';
 import SubchannelsModal from '../modals/threads/subchannels/subchannels-modal.react.js';
 import { useSelector } from '../redux/redux-utils.js';
 
 type ThreadMenuProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 function ThreadMenu(props: ThreadMenuProps): React.Node {
   const { pushModal, popModal } = useModalContext();
   const { threadInfo } = props;
   const { onPromoteSidebar, canPromoteSidebar } = usePromoteSidebar(threadInfo);
 
   const onClickSettings = React.useCallback(
     () => pushModal(<ThreadSettingsModal threadID={threadInfo.id} />),
     [pushModal, threadInfo.id],
   );
 
   const settingsItem = React.useMemo(() => {
     return (
       <MenuItem
         key="settings"
         text="Settings"
         icon="settings"
         onClick={onClickSettings}
       />
     );
   }, [onClickSettings]);
 
   const onClickMembers = React.useCallback(
     () =>
       pushModal(
         <ThreadMembersModal threadID={threadInfo.id} onClose={popModal} />,
       ),
     [popModal, pushModal, threadInfo.id],
   );
   const membersItem = React.useMemo(() => {
     if (threadInfo.type === threadTypes.PERSONAL) {
       return null;
     }
     return (
       <MenuItem
         key="members"
         text="Members"
         icon="users"
         onClick={onClickMembers}
       />
     );
   }, [onClickMembers, threadInfo.type]);
 
   const onClickThreadMediaGallery = React.useCallback(
     () =>
       pushModal(
         <ThreadSettingsMediaGalleryModal
           onClose={popModal}
           parentThreadInfo={threadInfo}
           limit={36}
           activeTab="All"
         />,
       ),
     [popModal, pushModal, threadInfo],
   );
 
   const threadMediaGalleryItem = React.useMemo(
     () => (
       <MenuItem
         key="threadMediaGallery"
         text="Media"
         icon="image-1"
         onClick={onClickThreadMediaGallery}
       />
     ),
     [onClickThreadMediaGallery],
   );
 
   const childThreads = useSelector(
     state => childThreadInfos(state)[threadInfo.id],
   );
 
   const hasSidebars = React.useMemo(() => {
     return childThreads?.some(
       childThreadInfo => childThreadInfo.type === threadTypes.SIDEBAR,
     );
   }, [childThreads]);
 
   const onClickSidebars = React.useCallback(
     () =>
       pushModal(<SidebarsModal threadID={threadInfo.id} onClose={popModal} />),
     [popModal, pushModal, threadInfo.id],
   );
 
   const sidebarItem = React.useMemo(() => {
     if (!hasSidebars) {
       return null;
     }
     return (
       <MenuItem
         key="sidebars"
         text="Threads"
         icon="arrow-right"
         onClick={onClickSidebars}
       />
     );
   }, [hasSidebars, onClickSidebars]);
 
   const canCreateSubchannels = React.useMemo(
     () => threadHasPermission(threadInfo, threadPermissions.CREATE_SUBCHANNELS),
     [threadInfo],
   );
 
   const hasSubchannels = React.useMemo(() => {
     return !!childThreads?.some(threadIsChannel);
   }, [childThreads]);
 
   const onClickViewSubchannels = React.useCallback(
     () =>
       pushModal(
         <SubchannelsModal threadID={threadInfo.id} onClose={popModal} />,
       ),
     [popModal, pushModal, threadInfo.id],
   );
 
   const viewSubchannelsItem = React.useMemo(() => {
     if (!hasSubchannels) {
       return null;
     }
     return (
       <MenuItem
         key="subchannels"
         text="Subchannels"
         icon="message-square"
         onClick={onClickViewSubchannels}
       />
     );
   }, [hasSubchannels, onClickViewSubchannels]);
 
   const onClickCreateSubchannel = React.useCallback(
     () =>
       pushModal(
         <ComposeSubchannelModal
           parentThreadInfo={threadInfo}
           onClose={popModal}
         />,
       ),
     [popModal, pushModal, threadInfo],
   );
 
   const createSubchannelsItem = React.useMemo(() => {
     if (!canCreateSubchannels) {
       return null;
     }
     return (
       <MenuItem
         key="newSubchannel"
         text="Create new subchannel"
         icon="plus-circle"
         onClick={onClickCreateSubchannel}
       />
     );
   }, [canCreateSubchannels, onClickCreateSubchannel]);
 
   const dispatchActionPromise = useDispatchActionPromise();
   const callLeaveThread = useLeaveThread();
 
   const onConfirmLeaveThread = React.useCallback(() => {
     dispatchActionPromise(
       leaveThreadActionTypes,
       callLeaveThread({ threadID: threadInfo.id }),
     );
     popModal();
   }, [callLeaveThread, popModal, dispatchActionPromise, threadInfo.id]);
 
   const onClickLeaveThread = React.useCallback(
     () =>
       pushModal(
         <ConfirmLeaveThreadModal
           threadInfo={threadInfo}
           onClose={popModal}
           onConfirm={onConfirmLeaveThread}
         />,
       ),
     [popModal, onConfirmLeaveThread, pushModal, threadInfo],
   );
 
   const leaveThreadItem = React.useMemo(() => {
     const canLeaveThread = threadHasPermission(
       threadInfo,
       threadPermissions.LEAVE_THREAD,
     );
     if (!viewerIsMember(threadInfo) || !canLeaveThread) {
       return null;
     }
     return (
       <MenuItem
         key="leave"
         text="Leave chat"
         icon="logout"
         dangerous
         onClick={onClickLeaveThread}
       />
     );
   }, [onClickLeaveThread, threadInfo]);
 
   const onClickPromoteSidebarToThread = React.useCallback(
     () =>
       pushModal(
         <SidebarPromoteModal
           threadInfo={threadInfo}
           onClose={popModal}
           onConfirm={onPromoteSidebar}
         />,
       ),
     [pushModal, threadInfo, popModal, onPromoteSidebar],
   );
 
   const promoteSidebar = React.useMemo(() => {
     return (
       <MenuItem
         key="promote"
         text="Promote to channel"
         icon="message-square-lines"
         onClick={onClickPromoteSidebarToThread}
       />
     );
   }, [onClickPromoteSidebarToThread]);
 
   const onClickNotifications = React.useCallback(() => {
     pushModal(
       <ThreadNotificationsModal threadID={threadInfo.id} onClose={popModal} />,
     );
   }, [popModal, pushModal, threadInfo.id]);
 
   const notificationsItem = React.useMemo(() => {
     if (!viewerIsMember(threadInfo)) {
       return null;
     }
     return (
       <MenuItem
         key="notifications"
         text="Notifications"
         icon="bell"
         onClick={onClickNotifications}
       />
     );
   }, [onClickNotifications, threadInfo]);
 
   const menuItems = React.useMemo(() => {
     const separator = <hr key="separator" className={css.separator} />;
 
     const items = [
       settingsItem,
       notificationsItem,
       membersItem,
       threadMediaGalleryItem,
       sidebarItem,
       viewSubchannelsItem,
       createSubchannelsItem,
       leaveThreadItem && separator,
       canPromoteSidebar && promoteSidebar,
       leaveThreadItem,
     ];
     return items.filter(Boolean);
   }, [
     settingsItem,
     notificationsItem,
     membersItem,
     threadMediaGalleryItem,
     sidebarItem,
     viewSubchannelsItem,
     promoteSidebar,
     createSubchannelsItem,
     leaveThreadItem,
     canPromoteSidebar,
   ]);
   const icon = React.useMemo(
     () => <SWMansionIcon icon="menu-vertical" size={20} />,
     [],
   );
   return <Menu icon={icon}>{menuItems}</Menu>;
 }
 
 export default ThreadMenu;
diff --git a/web/chat/thread-top-bar.react.js b/web/chat/thread-top-bar.react.js
index bcd7c80f1..ec9720d0f 100644
--- a/web/chat/thread-top-bar.react.js
+++ b/web/chat/thread-top-bar.react.js
@@ -1,104 +1,105 @@
 // @flow
 
 import * as React from 'react';
 import { ChevronRight } from 'react-feather';
 
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import SWMansionIcon from 'lib/components/SWMansionIcon.react.js';
 import { threadIsPending } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import ThreadMenu from './thread-menu.react.js';
 import css from './thread-top-bar.css';
 import ThreadAvatar from '../avatars/thread-avatar.react.js';
 import Button from '../components/button.react.js';
 import { InputStateContext } from '../input/input-state.js';
 import MessageResultsModal from '../modals/chat/message-results-modal.react.js';
 import MessageSearchModal from '../modals/search/message-search-modal.react.js';
 
 type ThreadTopBarProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function ThreadTopBar(props: ThreadTopBarProps): React.Node {
   const { threadInfo } = props;
   const { pushModal } = useModalContext();
 
   let threadMenu = null;
   if (!threadIsPending(threadInfo.id)) {
     threadMenu = <ThreadMenu threadInfo={threadInfo} />;
   }
 
   // To allow the pinned messages modal to be re-used by the message search
   // modal, it will be useful to make the modal accept a prop that defines it's
   // name, instead of setting it directly in the modal.
   const bannerText = React.useMemo(() => {
     if (!threadInfo.pinnedCount || threadInfo.pinnedCount === 0) {
       return '';
     }
 
     const messageNoun = threadInfo.pinnedCount === 1 ? 'message' : 'messages';
 
     return `${threadInfo.pinnedCount} pinned ${messageNoun}`;
   }, [threadInfo.pinnedCount]);
 
   const inputState = React.useContext(InputStateContext);
   const pushThreadPinsModal = React.useCallback(() => {
     pushModal(
       <InputStateContext.Provider value={inputState}>
         <MessageResultsModal threadInfo={threadInfo} modalName={bannerText} />
       </InputStateContext.Provider>,
     );
   }, [pushModal, inputState, threadInfo, bannerText]);
 
   const pinnedCountBanner = React.useMemo(() => {
     if (!bannerText) {
       return null;
     }
 
     return (
       <div className={css.pinnedCountBanner}>
         <a className={css.pinnedCountText} onClick={pushThreadPinsModal}>
           {bannerText}
           <ChevronRight size={14} className={css.chevronRight} />
         </a>
       </div>
     );
   }, [bannerText, pushThreadPinsModal]);
 
   const onClickSearch = React.useCallback(
     () =>
       pushModal(
         <InputStateContext.Provider value={inputState}>
           <MessageSearchModal threadInfo={threadInfo} />
         </InputStateContext.Provider>,
       ),
     [inputState, pushModal, threadInfo],
   );
 
   const { uiName } = useResolvedThreadInfo(threadInfo);
 
   return (
     <>
       <div className={css.topBarContainer}>
         <div className={css.topBarThreadInfo}>
           <ThreadAvatar size="S" threadInfo={threadInfo} />
           <div className={css.threadTitle}>{uiName}</div>
         </div>
         <div className={css.buttons}>
           <Button className={css.button} onClick={onClickSearch}>
             <SWMansionIcon
               size={24}
               icon="search"
               className={css.searchButtonIcon}
             />
           </Button>
           {threadMenu}
         </div>
       </div>
       {pinnedCountBanner}
     </>
   );
 }
 
 export default ThreadTopBar;
diff --git a/web/components/message-result.react.js b/web/components/message-result.react.js
index db28d2f8d..7fa8053f6 100644
--- a/web/components/message-result.react.js
+++ b/web/components/message-result.react.js
@@ -1,70 +1,71 @@
 // @flow
 
 import classNames from 'classnames';
 import * as React from 'react';
 
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import { useStringForUser } from 'lib/hooks/ens-cache.js';
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 
 import css from './message-result.css';
 import { MessageListContext } from '../chat/message-list-types.js';
 import Message from '../chat/message.react.js';
 import { useTextMessageRulesFunc } from '../markdown/rules.react.js';
 
 type MessageResultProps = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +scrollable: boolean,
 };
 
 function MessageResult(props: MessageResultProps): React.Node {
   const { item, threadInfo, scrollable } = props;
 
   const chatMentionCandidates = useThreadChatMentionCandidates(threadInfo);
   const getTextMessageMarkdownRules = useTextMessageRulesFunc(
     threadInfo,
     chatMentionCandidates,
   );
   const messageListContext = React.useMemo(() => {
     if (!getTextMessageMarkdownRules) {
       return undefined;
     }
     return { getTextMessageMarkdownRules };
   }, [getTextMessageMarkdownRules]);
 
   const shouldShowUsername = !item.startsConversation && !item.startsCluster;
   const username = useStringForUser(
     shouldShowUsername ? item.messageInfo.creator : null,
   );
 
   const messageContainerClassNames = classNames({
     [css.messageContainer]: true,
     [css.messageContainerOverflow]: scrollable,
   });
 
   return (
     <div className={messageContainerClassNames}>
       <div>
         <div className={css.creator}>{username}</div>
         <div className={css.messageContent}>
           <MessageListContext.Provider value={messageListContext}>
             <Message
               item={item}
               threadInfo={threadInfo}
               shouldDisplayPinIndicator={false}
               key={item.messageInfo.id}
             />
           </MessageListContext.Provider>
         </div>
         <div className={css.messageDate}>
           {longAbsoluteDate(item.messageInfo.time)}
         </div>
       </div>
     </div>
   );
 }
 
 export default MessageResult;
diff --git a/web/input/input-state-container.react.js b/web/input/input-state-container.react.js
index 7d3720918..f6448339a 100644
--- a/web/input/input-state-container.react.js
+++ b/web/input/input-state-container.react.js
@@ -1,1666 +1,1676 @@
 // @flow
 
 import invariant from 'invariant';
 import _groupBy from 'lodash/fp/groupBy.js';
 import _keyBy from 'lodash/fp/keyBy.js';
 import _omit from 'lodash/fp/omit.js';
 import _partition from 'lodash/fp/partition.js';
 import _sortBy from 'lodash/fp/sortBy.js';
 import _memoize from 'lodash/memoize.js';
 import * as React from 'react';
 import { useDispatch } from 'react-redux';
 import { createSelector } from 'reselect';
 
 import {
   createLocalMessageActionType,
   sendMultimediaMessageActionTypes,
   useLegacySendMultimediaMessage,
   sendTextMessageActionTypes,
   useSendTextMessage,
 } from 'lib/actions/message-actions.js';
 import type {
   LegacySendMultimediaMessageInput,
   SendTextMessageInput,
 } from 'lib/actions/message-actions.js';
 import { queueReportsActionType } from 'lib/actions/report-actions.js';
 import { useNewThread } from 'lib/actions/thread-actions.js';
 import {
   uploadMultimedia,
   updateMultimediaMessageMediaActionType,
   useDeleteUpload,
   useBlobServiceUpload,
   type MultimediaUploadCallbacks,
   type MultimediaUploadExtras,
   type BlobServiceUploadAction,
   type DeleteUploadInput,
 } from 'lib/actions/upload-actions.js';
 import {
   useModalContext,
   type PushModal,
 } from 'lib/components/modal-provider.react.js';
 import blobService from 'lib/facts/blob-service.js';
 import commStaffCommunity from 'lib/facts/comm-staff-community.js';
 import { getNextLocalUploadID } from 'lib/media/media-utils.js';
 import { pendingToRealizedThreadIDsSelector } from 'lib/selectors/thread-selectors.js';
 import {
   createMediaMessageInfo,
   localIDPrefix,
   useMessageCreationSideEffectsFunc,
 } from 'lib/shared/message-utils.js';
 import type { CreationSideEffectsFunc } from 'lib/shared/messages/message-spec.js';
 import {
   createRealThreadFromPendingThread,
   draftKeyFromThreadID,
   threadIsPending,
   threadIsPendingSidebar,
   patchThreadInfoToIncludeMentionedMembersOfParent,
   threadInfoInsideCommunity,
 } from 'lib/shared/thread-utils.js';
 import type { CalendarQuery } from 'lib/types/entry-types.js';
 import type {
   UploadMultimediaResult,
   MediaMissionStep,
   MediaMissionFailure,
   MediaMissionResult,
   MediaMission,
 } from 'lib/types/media-types.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
 import {
   type RawMessageInfo,
   type RawMultimediaMessageInfo,
   type SendMessageResult,
   type SendMessagePayload,
 } from 'lib/types/message-types.js';
 import type { RawImagesMessageInfo } from 'lib/types/messages/images.js';
 import type { RawMediaMessageInfo } from 'lib/types/messages/media.js';
 import type { RawTextMessageInfo } from 'lib/types/messages/text.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { Dispatch } from 'lib/types/redux-types.js';
 import { reportTypes } from 'lib/types/report-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import {
   type ClientNewThreadRequest,
   type NewThreadResult,
   type ThreadInfo,
 } from 'lib/types/thread-types.js';
 import {
   type DispatchActionPromise,
   useServerCall,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 import {
   makeBlobServiceEndpointURL,
   isBlobServiceURI,
   blobHashFromBlobServiceURI,
 } from 'lib/utils/blob-service.js';
 import { getConfig } from 'lib/utils/config.js';
 import { getMessageForException, cloneError } from 'lib/utils/errors.js';
 import { generateReportID } from 'lib/utils/report-utils.js';
 
 import {
   type PendingMultimediaUpload,
   type TypeaheadState,
   InputStateContext,
 } from './input-state.js';
 import { encryptFile } from '../media/encryption-utils.js';
 import { generateThumbHash } from '../media/image-utils.js';
 import {
   preloadMediaResource,
   validateFile,
   preloadImage,
 } from '../media/media-utils.js';
 import InvalidUploadModal from '../modals/chat/invalid-upload.react.js';
 import { updateNavInfoActionType } from '../redux/action-types.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { nonThreadCalendarQuery } from '../selectors/nav-selectors.js';
 
 type BaseProps = {
   +children: React.Node,
 };
 type Props = {
   ...BaseProps,
   +activeChatThreadID: ?string,
   +drafts: { +[key: string]: string },
   +viewerID: ?string,
   +messageStoreMessages: { +[id: string]: RawMessageInfo },
   +pendingRealizedThreadIDs: $ReadOnlyMap<string, string>,
   +dispatch: Dispatch,
   +dispatchActionPromise: DispatchActionPromise,
   +calendarQuery: () => CalendarQuery,
   +uploadMultimedia: (
     multimedia: Object,
     extras: MultimediaUploadExtras,
     callbacks: MultimediaUploadCallbacks,
   ) => Promise<UploadMultimediaResult>,
   +blobServiceUpload: BlobServiceUploadAction,
   +deleteUpload: (input: DeleteUploadInput) => Promise<void>,
   +sendMultimediaMessage: (
     input: LegacySendMultimediaMessageInput,
   ) => Promise<SendMessageResult>,
   +sendTextMessage: (input: SendTextMessageInput) => Promise<SendMessageResult>,
   +newThread: (request: ClientNewThreadRequest) => Promise<NewThreadResult>,
   +pushModal: PushModal,
   +sendCallbacks: $ReadOnlyArray<() => mixed>,
   +registerSendCallback: (() => mixed) => void,
   +unregisterSendCallback: (() => mixed) => void,
   +textMessageCreationSideEffectsFunc: CreationSideEffectsFunc<RawTextMessageInfo>,
 };
 type State = {
   +pendingUploads: {
     [threadID: string]: { [localUploadID: string]: PendingMultimediaUpload },
   },
   +textCursorPositions: { [threadID: string]: number },
   +typeaheadState: TypeaheadState,
 };
 
 type PropsAndState = {
   ...Props,
   ...State,
 };
 class InputStateContainer extends React.PureComponent<Props, State> {
   state: State = {
     pendingUploads: {},
     textCursorPositions: {},
     typeaheadState: {
       canBeVisible: false,
       keepUpdatingThreadMembers: true,
       frozenUserMentionsCandidates: [],
       frozenChatMentionsCandidates: {},
       moveChoiceUp: null,
       moveChoiceDown: null,
       close: null,
       accept: null,
     },
   };
   replyCallbacks: Array<(message: string) => void> = [];
   pendingThreadCreations = new Map<string, Promise<string>>();
   // TODO: flip the switch
   // Note that this enables Blob service for encrypted media only
   useBlobServiceUploads = false;
 
   // When the user sends a multimedia message that triggers the creation of a
   // sidebar, the sidebar gets created right away, but the message needs to wait
   // for the uploads to complete before sending. We use this Set to track the
   // message localIDs that need sidebarCreation: true.
   pendingSidebarCreationMessageLocalIDs = new Set<string>();
 
   static reassignToRealizedThreads<T>(
     state: { +[threadID: string]: T },
     props: Props,
   ): ?{ [threadID: string]: T } {
     const newState = {};
     let updated = false;
     for (const threadID in state) {
       const newThreadID =
         props.pendingRealizedThreadIDs.get(threadID) ?? threadID;
       if (newThreadID !== threadID) {
         updated = true;
       }
       newState[newThreadID] = state[threadID];
     }
     return updated ? newState : null;
   }
 
   static getDerivedStateFromProps(props: Props, state: State) {
     const pendingUploads = InputStateContainer.reassignToRealizedThreads(
       state.pendingUploads,
       props,
     );
     const textCursorPositions = InputStateContainer.reassignToRealizedThreads(
       state.textCursorPositions,
       props,
     );
 
     if (!pendingUploads && !textCursorPositions) {
       return null;
     }
 
     const stateUpdate = {};
     if (pendingUploads) {
       stateUpdate.pendingUploads = pendingUploads;
     }
     if (textCursorPositions) {
       stateUpdate.textCursorPositions = textCursorPositions;
     }
     return stateUpdate;
   }
 
   static completedMessageIDs(state: State) {
     const completed = new Map();
     for (const threadID in state.pendingUploads) {
       const pendingUploads = state.pendingUploads[threadID];
       for (const localUploadID in pendingUploads) {
         const upload = pendingUploads[localUploadID];
         const { messageID, serverID, failed } = upload;
         if (!messageID || !messageID.startsWith(localIDPrefix)) {
           continue;
         }
         if (!serverID || failed) {
           completed.set(messageID, false);
           continue;
         }
         if (completed.get(messageID) === undefined) {
           completed.set(messageID, true);
         }
       }
     }
     const messageIDs = new Set();
     for (const [messageID, isCompleted] of completed) {
       if (isCompleted) {
         messageIDs.add(messageID);
       }
     }
     return messageIDs;
   }
 
   componentDidUpdate(prevProps: Props, prevState: State) {
     if (this.props.viewerID !== prevProps.viewerID) {
       this.setState({ pendingUploads: {} });
       return;
     }
 
     const previouslyAssignedMessageIDs = new Set();
     for (const threadID in prevState.pendingUploads) {
       const pendingUploads = prevState.pendingUploads[threadID];
       for (const localUploadID in pendingUploads) {
         const { messageID } = pendingUploads[localUploadID];
         if (messageID) {
           previouslyAssignedMessageIDs.add(messageID);
         }
       }
     }
 
     const newlyAssignedUploads = new Map();
     for (const threadID in this.state.pendingUploads) {
       const pendingUploads = this.state.pendingUploads[threadID];
       for (const localUploadID in pendingUploads) {
         const upload = pendingUploads[localUploadID];
         const { messageID } = upload;
         if (
           !messageID ||
           !messageID.startsWith(localIDPrefix) ||
           previouslyAssignedMessageIDs.has(messageID)
         ) {
           continue;
         }
         const { shouldEncrypt } = upload;
         let assignedUploads = newlyAssignedUploads.get(messageID);
         if (!assignedUploads) {
           assignedUploads = { threadID, shouldEncrypt, uploads: [] };
           newlyAssignedUploads.set(messageID, assignedUploads);
         }
         if (shouldEncrypt !== assignedUploads.shouldEncrypt) {
           console.warn(
             `skipping upload ${localUploadID} ` +
               "because shouldEncrypt doesn't match",
           );
           continue;
         }
         assignedUploads.uploads.push(upload);
       }
     }
 
     const newMessageInfos = new Map();
     for (const [messageID, assignedUploads] of newlyAssignedUploads) {
       const { uploads, threadID, shouldEncrypt } = assignedUploads;
       const creatorID = this.props.viewerID;
       invariant(creatorID, 'need viewer ID in order to send a message');
       const media = uploads.map(
         ({
           localID,
           serverID,
           uri,
           mediaType,
           dimensions,
           encryptionKey,
           thumbHash,
         }) => {
           // We can get into this state where dimensions are null if the user is
           // uploading a file type that the browser can't render. In that case
           // we fake the dimensions here while we wait for the server to tell us
           // the true dimensions.
           const shimmedDimensions = dimensions ?? { height: 0, width: 0 };
           invariant(
             mediaType === 'photo' || mediaType === 'encrypted_photo',
             "web InputStateContainer can't handle video",
           );
           if (
             mediaType !== 'encrypted_photo' &&
             mediaType !== 'encrypted_video'
           ) {
             return {
               id: serverID ? serverID : localID,
               uri,
               type: 'photo',
               dimensions: shimmedDimensions,
               thumbHash,
             };
           }
           invariant(
             encryptionKey,
             'encrypted media must have an encryption key',
           );
           return {
             id: serverID ? serverID : localID,
             blobURI: uri,
             type: 'encrypted_photo',
             encryptionKey,
             dimensions: shimmedDimensions,
             thumbHash,
           };
         },
       );
       const messageInfo = createMediaMessageInfo(
         {
           localID: messageID,
           threadID,
           creatorID,
           media,
         },
         { forceMultimediaMessageType: shouldEncrypt },
       );
       newMessageInfos.set(messageID, messageInfo);
     }
 
     const currentlyCompleted = InputStateContainer.completedMessageIDs(
       this.state,
     );
     const previouslyCompleted =
       InputStateContainer.completedMessageIDs(prevState);
     for (const messageID of currentlyCompleted) {
       if (previouslyCompleted.has(messageID)) {
         continue;
       }
       let rawMessageInfo = newMessageInfos.get(messageID);
       if (rawMessageInfo) {
         newMessageInfos.delete(messageID);
       } else {
         rawMessageInfo = this.getRawMultimediaMessageInfo(messageID);
       }
       this.sendMultimediaMessage(rawMessageInfo);
     }
 
     for (const [, messageInfo] of newMessageInfos) {
       this.props.dispatch({
         type: createLocalMessageActionType,
         payload: messageInfo,
       });
     }
   }
 
   getRawMultimediaMessageInfo(
     localMessageID: string,
   ): RawMultimediaMessageInfo {
     const rawMessageInfo = this.props.messageStoreMessages[localMessageID];
     invariant(rawMessageInfo, `rawMessageInfo ${localMessageID} should exist`);
     invariant(
       rawMessageInfo.type === messageTypes.IMAGES ||
         rawMessageInfo.type === messageTypes.MULTIMEDIA,
       `rawMessageInfo ${localMessageID} should be multimedia`,
     );
     return rawMessageInfo;
   }
 
   shouldEncryptMedia(threadInfo: ThreadInfo): boolean {
     return threadInfoInsideCommunity(threadInfo, commStaffCommunity.id);
   }
 
   async sendMultimediaMessage(messageInfo: RawMultimediaMessageInfo) {
     if (!threadIsPending(messageInfo.threadID)) {
       this.props.dispatchActionPromise(
         sendMultimediaMessageActionTypes,
         this.sendMultimediaMessageAction(messageInfo),
         undefined,
         messageInfo,
       );
       return;
     }
 
     this.props.dispatch({
       type: sendMultimediaMessageActionTypes.started,
       payload: messageInfo,
     });
 
     let newThreadID = null;
     try {
       const threadCreationPromise = this.pendingThreadCreations.get(
         messageInfo.threadID,
       );
       if (!threadCreationPromise) {
         // When we create or retry multimedia message, we add a promise to
         // pendingThreadCreations map. This promise can be removed in
         // sendMultimediaMessage and sendTextMessage methods. When any of these
         // method remove the promise, it has to be settled. If the promise was
         // fulfilled, this method would be called with realized thread, so we
         // can conclude that the promise was rejected. We don't have enough info
         // here to retry the thread creation, but we can mark the message as
         // failed. Then the retry will be possible and promise will be created
         // again.
         throw new Error('Thread creation failed');
       }
       newThreadID = await threadCreationPromise;
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       this.props.dispatch({
         type: sendMultimediaMessageActionTypes.failed,
         payload: copy,
         error: true,
       });
       return;
     } finally {
       this.pendingThreadCreations.delete(messageInfo.threadID);
     }
 
     // While the thread was being created, the image preload may have completed,
     // and we might have a finalized URI now. So we fetch from Redux again
     const { localID } = messageInfo;
     invariant(
       localID !== null && localID !== undefined,
       'localID should exist for locally-created RawMessageInfo',
     );
     const latestMessageInfo = this.getRawMultimediaMessageInfo(localID);
 
     // Conditional is necessary for Flow
     let newMessageInfo;
     if (latestMessageInfo.type === messageTypes.MULTIMEDIA) {
       newMessageInfo = {
         ...latestMessageInfo,
         threadID: newThreadID,
         time: Date.now(),
       };
     } else {
       newMessageInfo = {
         ...latestMessageInfo,
         threadID: newThreadID,
         time: Date.now(),
       };
     }
 
     this.props.dispatchActionPromise(
       sendMultimediaMessageActionTypes,
       this.sendMultimediaMessageAction(newMessageInfo),
       undefined,
       newMessageInfo,
     );
   }
 
   async sendMultimediaMessageAction(
     messageInfo: RawMultimediaMessageInfo,
   ): Promise<SendMessagePayload> {
     const { localID, threadID } = messageInfo;
     invariant(
       localID !== null && localID !== undefined,
       'localID should be set',
     );
     const sidebarCreation =
       this.pendingSidebarCreationMessageLocalIDs.has(localID);
     const mediaIDs = [];
     for (const { id } of messageInfo.media) {
       mediaIDs.push(id);
     }
     try {
       const result = await this.props.sendMultimediaMessage({
         threadID,
         localID,
         mediaIDs,
         sidebarCreation,
       });
       this.pendingSidebarCreationMessageLocalIDs.delete(localID);
       this.setState(prevState => {
         const newThreadID = this.getRealizedOrPendingThreadID(threadID);
         const prevUploads = prevState.pendingUploads[newThreadID];
         const newUploads = {};
         for (const localUploadID in prevUploads) {
           const upload = prevUploads[localUploadID];
           if (upload.messageID !== localID) {
             newUploads[localUploadID] = upload;
           } else if (!upload.uriIsReal) {
             newUploads[localUploadID] = {
               ...upload,
               messageID: result.id,
             };
           }
         }
         return {
           pendingUploads: {
             ...prevState.pendingUploads,
             [newThreadID]: newUploads,
           },
         };
       });
       return {
         localID,
         serverID: result.id,
         threadID,
         time: result.time,
         interface: result.interface,
       };
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = localID;
       copy.threadID = threadID;
       throw copy;
     }
   }
 
-  startThreadCreation(threadInfo: ThreadInfo): Promise<string> {
+  startThreadCreation(
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  ): Promise<string> {
     if (!threadIsPending(threadInfo.id)) {
       return Promise.resolve(threadInfo.id);
     }
     let threadCreationPromise = this.pendingThreadCreations.get(threadInfo.id);
     if (!threadCreationPromise) {
       const calendarQuery = this.props.calendarQuery();
       threadCreationPromise = createRealThreadFromPendingThread({
         threadInfo,
         dispatchActionPromise: this.props.dispatchActionPromise,
         createNewThread: this.props.newThread,
         sourceMessageID: threadInfo.sourceMessageID,
         viewerID: this.props.viewerID,
         calendarQuery,
       });
       this.pendingThreadCreations.set(threadInfo.id, threadCreationPromise);
     }
     return threadCreationPromise;
   }
 
   inputBaseStateSelector = _memoize((threadID: ?string) =>
     createSelector(
       (propsAndState: PropsAndState) =>
         threadID ? propsAndState.pendingUploads[threadID] : null,
       (propsAndState: PropsAndState) =>
         threadID ? propsAndState.drafts[draftKeyFromThreadID(threadID)] : null,
       (propsAndState: PropsAndState) =>
         threadID ? propsAndState.textCursorPositions[threadID] : null,
       (
         pendingUploads: ?{ [localUploadID: string]: PendingMultimediaUpload },
         draft: ?string,
         textCursorPosition: ?number,
       ) => {
         let threadPendingUploads = [];
         const assignedUploads = {};
         if (pendingUploads) {
           const [uploadsWithMessageIDs, uploadsWithoutMessageIDs] =
             _partition('messageID')(pendingUploads);
           threadPendingUploads = _sortBy('localID')(uploadsWithoutMessageIDs);
           const threadAssignedUploads = _groupBy('messageID')(
             uploadsWithMessageIDs,
           );
           for (const messageID in threadAssignedUploads) {
             // lodash libdefs don't return $ReadOnlyArray
             assignedUploads[messageID] = [...threadAssignedUploads[messageID]];
           }
         }
         return {
           pendingUploads: threadPendingUploads,
           assignedUploads,
           draft: draft ?? '',
           textCursorPosition: textCursorPosition ?? 0,
           appendFiles: (threadInfo: ThreadInfo, files: $ReadOnlyArray<File>) =>
             this.appendFiles(threadInfo, files),
           cancelPendingUpload: (localUploadID: string) =>
             this.cancelPendingUpload(threadID, localUploadID),
           sendTextMessage: (
             messageInfo: RawTextMessageInfo,
             threadInfo: ThreadInfo,
             parentThreadInfo: ?ThreadInfo,
           ) => this.sendTextMessage(messageInfo, threadInfo, parentThreadInfo),
           createMultimediaMessage: (localID: number, threadInfo: ThreadInfo) =>
             this.createMultimediaMessage(localID, threadInfo),
           setDraft: (newDraft: string) => this.setDraft(threadID, newDraft),
           setTextCursorPosition: (newPosition: number) =>
             this.setTextCursorPosition(threadID, newPosition),
           messageHasUploadFailure: (localMessageID: string) =>
             this.messageHasUploadFailure(assignedUploads[localMessageID]),
           retryMultimediaMessage: (
             localMessageID: string,
             threadInfo: ThreadInfo,
           ) =>
             this.retryMultimediaMessage(
               localMessageID,
               threadInfo,
               assignedUploads[localMessageID],
             ),
           addReply: (message: string) => this.addReply(message),
           addReplyListener: this.addReplyListener,
           removeReplyListener: this.removeReplyListener,
           registerSendCallback: this.props.registerSendCallback,
           unregisterSendCallback: this.props.unregisterSendCallback,
         };
       },
     ),
   );
 
   typeaheadStateSelector = createSelector(
     (propsAndState: PropsAndState) => propsAndState.typeaheadState,
     (typeaheadState: TypeaheadState) => ({
       typeaheadState,
       setTypeaheadState: this.setTypeaheadState,
     }),
   );
 
   inputStateSelector = createSelector(
     state => state.inputBaseState,
     state => state.typeaheadState,
     (inputBaseState, typeaheadState) => ({
       ...inputBaseState,
       ...typeaheadState,
     }),
   );
 
   getRealizedOrPendingThreadID(threadID: string): string {
     return this.props.pendingRealizedThreadIDs.get(threadID) ?? threadID;
   }
 
   async appendFiles(
     threadInfo: ThreadInfo,
     files: $ReadOnlyArray<File>,
   ): Promise<boolean> {
     const selectionTime = Date.now();
     const { pushModal } = this.props;
 
     const appendResults = await Promise.all(
       files.map(file => this.appendFile(threadInfo, file, selectionTime)),
     );
 
     if (appendResults.some(({ result }) => !result.success)) {
       pushModal(<InvalidUploadModal />);
 
       const time = Date.now() - selectionTime;
       const reports = [];
       for (const appendResult of appendResults) {
         const { steps } = appendResult;
         let { result } = appendResult;
         let uploadLocalID;
         if (result.success) {
           uploadLocalID = result.pendingUpload.localID;
           result = { success: false, reason: 'web_sibling_validation_failed' };
         }
         const mediaMission = { steps, result, userTime: time, totalTime: time };
         reports.push({ mediaMission, uploadLocalID });
       }
       this.queueMediaMissionReports(reports);
 
       return false;
     }
 
     const newUploads = appendResults.map(({ result }) => {
       invariant(result.success, 'any failed validation should be caught above');
       return result.pendingUpload;
     });
 
     const newUploadsObject = _keyBy('localID')(newUploads);
     this.setState(
       prevState => {
         const newThreadID = this.getRealizedOrPendingThreadID(threadInfo.id);
         const prevUploads = prevState.pendingUploads[newThreadID];
         const mergedUploads = prevUploads
           ? { ...prevUploads, ...newUploadsObject }
           : newUploadsObject;
         return {
           pendingUploads: {
             ...prevState.pendingUploads,
             [newThreadID]: mergedUploads,
           },
         };
       },
       () => this.uploadFiles(threadInfo.id, newUploads),
     );
     return true;
   }
 
   async appendFile(
     threadInfo: ThreadInfo,
     file: File,
     selectTime: number,
   ): Promise<{
     steps: $ReadOnlyArray<MediaMissionStep>,
     result:
       | MediaMissionFailure
       | { success: true, pendingUpload: PendingMultimediaUpload },
   }> {
     const steps = [
       {
         step: 'web_selection',
         filename: file.name,
         size: file.size,
         mime: file.type,
         selectTime,
       },
     ];
 
     let response;
     const validationStart = Date.now();
     try {
       response = await validateFile(file);
     } catch (e) {
       return {
         steps,
         result: {
           success: false,
           reason: 'processing_exception',
           time: Date.now() - validationStart,
           exceptionMessage: getMessageForException(e),
         },
       };
     }
     const { steps: validationSteps, result } = response;
     steps.push(...validationSteps);
     if (!result.success) {
       return { steps, result };
     }
     const { uri, file: fixedFile, mediaType, dimensions } = result;
 
     const shouldEncrypt = this.shouldEncryptMedia(threadInfo);
 
     let encryptionResult;
     if (shouldEncrypt) {
       let encryptionResponse;
       const encryptionStart = Date.now();
       try {
         encryptionResponse = await encryptFile(fixedFile);
       } catch (e) {
         return {
           steps,
           result: {
             success: false,
             reason: 'encryption_exception',
             time: Date.now() - encryptionStart,
             exceptionMessage: getMessageForException(e),
           },
         };
       }
       steps.push(...encryptionResponse.steps);
       encryptionResult = encryptionResponse.result;
     }
     if (encryptionResult && !encryptionResult.success) {
       return { steps, result: encryptionResult };
     }
 
     const { steps: thumbHashSteps, result: thumbHashResult } =
       await generateThumbHash(fixedFile, encryptionResult?.encryptionKey);
     const thumbHash = thumbHashResult.success
       ? thumbHashResult.thumbHash
       : null;
     steps.push(...thumbHashSteps);
 
     return {
       steps,
       result: {
         success: true,
         pendingUpload: {
           localID: getNextLocalUploadID(),
           serverID: null,
           messageID: null,
           failed: false,
           file: encryptionResult?.file ?? fixedFile,
           mediaType: encryptionResult ? 'encrypted_photo' : mediaType,
           dimensions,
           uri: encryptionResult?.uri ?? uri,
           loop: false,
           uriIsReal: false,
           blobHolder: null,
           blobHash: encryptionResult?.sha256Hash,
           encryptionKey: encryptionResult?.encryptionKey,
           thumbHash,
           progressPercent: 0,
           abort: null,
           steps,
           selectTime,
           shouldEncrypt,
         },
       },
     };
   }
 
   uploadFiles(
     threadID: string,
     uploads: $ReadOnlyArray<PendingMultimediaUpload>,
   ) {
     return Promise.all(
       uploads.map(upload => this.uploadFile(threadID, upload)),
     );
   }
 
   async uploadFile(threadID: string, upload: PendingMultimediaUpload) {
     const { selectTime, localID, encryptionKey } = upload;
     const isEncrypted =
       !!encryptionKey &&
       (upload.mediaType === 'encrypted_photo' ||
         upload.mediaType === 'encrypted_video');
 
     const steps = [...upload.steps];
     let userTime;
 
     const sendReport = (missionResult: MediaMissionResult) => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const latestUpload = this.state.pendingUploads[newThreadID][localID];
       invariant(
         latestUpload,
         `pendingUpload ${localID} for ${newThreadID} missing in sendReport`,
       );
       const { serverID, messageID } = latestUpload;
       const totalTime = Date.now() - selectTime;
       userTime = userTime ? userTime : totalTime;
       const mission = { steps, result: missionResult, totalTime, userTime };
       this.queueMediaMissionReports([
         {
           mediaMission: mission,
           uploadLocalID: localID,
           uploadServerID: serverID,
           messageLocalID: messageID,
         },
       ]);
     };
 
     let uploadResult, uploadExceptionMessage;
     const uploadStart = Date.now();
     try {
       const callbacks = {
         onProgress: (percent: number) =>
           this.setProgress(threadID, localID, percent),
         abortHandler: (abort: () => void) =>
           this.handleAbortCallback(threadID, localID, abort),
       };
       if (
         this.useBlobServiceUploads &&
         (upload.mediaType === 'encrypted_photo' ||
           upload.mediaType === 'encrypted_video')
       ) {
         const { blobHash, dimensions, thumbHash } = upload;
         invariant(
           encryptionKey && blobHash && dimensions,
           'incomplete encrypted upload',
         );
         uploadResult = await this.props.blobServiceUpload({
           uploadInput: {
             blobInput: {
               type: 'file',
               file: upload.file,
             },
             blobHash,
             encryptionKey,
             dimensions,
             loop: false,
             thumbHash,
           },
           keyserverOrThreadID: threadID,
           callbacks,
         });
       } else {
         let uploadExtras = {
           ...upload.dimensions,
           loop: false,
           thumbHash: upload.thumbHash,
         };
         if (encryptionKey) {
           uploadExtras = { ...uploadExtras, encryptionKey };
         }
         uploadResult = await this.props.uploadMultimedia(
           upload.file,
           uploadExtras,
           callbacks,
         );
       }
     } catch (e) {
       uploadExceptionMessage = getMessageForException(e);
       this.handleUploadFailure(threadID, localID);
     }
     userTime = Date.now() - selectTime;
     steps.push({
       step: 'upload',
       success: !!uploadResult,
       exceptionMessage: uploadExceptionMessage,
       time: Date.now() - uploadStart,
       inputFilename: upload.file.name,
       outputMediaType: uploadResult && uploadResult.mediaType,
       outputURI: uploadResult && uploadResult.uri,
       outputDimensions: uploadResult && uploadResult.dimensions,
       outputLoop: uploadResult && uploadResult.loop,
     });
     if (!uploadResult) {
       sendReport({
         success: false,
         reason: 'http_upload_failed',
         exceptionMessage: uploadExceptionMessage,
       });
       return;
     }
     const result = uploadResult;
     const outputMediaType = isEncrypted ? 'encrypted_photo' : result.mediaType;
 
     const successThreadID = this.getRealizedOrPendingThreadID(threadID);
     const uploadAfterSuccess =
       this.state.pendingUploads[successThreadID][localID];
     invariant(
       uploadAfterSuccess,
       `pendingUpload ${localID}/${result.id} for ${successThreadID} missing ` +
         `after upload`,
     );
     if (uploadAfterSuccess.messageID) {
       this.props.dispatch({
         type: updateMultimediaMessageMediaActionType,
         payload: {
           messageID: uploadAfterSuccess.messageID,
           currentMediaID: localID,
           mediaUpdate: {
             id: result.id,
           },
         },
       });
     }
 
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const uploads = prevState.pendingUploads[newThreadID];
       const currentUpload = uploads[localID];
       invariant(
         currentUpload,
         `pendingUpload ${localID}/${result.id} for ${newThreadID} ` +
           `missing while assigning serverID`,
       );
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: {
             ...uploads,
             [localID]: {
               ...currentUpload,
               serverID: result.id,
               blobHolder: result.blobHolder,
               abort: null,
             },
           },
         },
       };
     });
 
     if (encryptionKey) {
       const { steps: preloadSteps } = await preloadMediaResource(result.uri);
       steps.push(...preloadSteps);
     } else {
       const { steps: preloadSteps } = await preloadImage(result.uri);
       steps.push(...preloadSteps);
     }
     sendReport({ success: true });
 
     const preloadThreadID = this.getRealizedOrPendingThreadID(threadID);
     const uploadAfterPreload =
       this.state.pendingUploads[preloadThreadID][localID];
     invariant(
       uploadAfterPreload,
       `pendingUpload ${localID}/${result.id} for ${preloadThreadID} missing ` +
         `after preload`,
     );
     if (uploadAfterPreload.messageID) {
       const { mediaType, uri, dimensions, loop } = result;
       const { thumbHash } = upload;
       let mediaUpdate = {
         loop,
         dimensions,
         ...(thumbHash ? { thumbHash } : undefined),
       };
       if (!isEncrypted) {
         mediaUpdate = {
           ...mediaUpdate,
           type: mediaType,
           uri,
         };
       } else {
         mediaUpdate = {
           ...mediaUpdate,
           type: outputMediaType,
           blobURI: uri,
           encryptionKey,
         };
       }
       this.props.dispatch({
         type: updateMultimediaMessageMediaActionType,
         payload: {
           messageID: uploadAfterPreload.messageID,
           currentMediaID: result.id ?? uploadAfterPreload.localID,
           mediaUpdate,
         },
       });
     }
 
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const uploads = prevState.pendingUploads[newThreadID];
       const currentUpload = uploads[localID];
       invariant(
         currentUpload,
         `pendingUpload ${localID}/${result.id} for ${newThreadID} ` +
           `missing while assigning URI`,
       );
       const { messageID } = currentUpload;
       if (messageID && !messageID.startsWith(localIDPrefix)) {
         const newPendingUploads = _omit([localID])(uploads);
         return {
           pendingUploads: {
             ...prevState.pendingUploads,
             [newThreadID]: newPendingUploads,
           },
         };
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: {
             ...uploads,
             [localID]: {
               ...currentUpload,
               uri: result.uri,
               mediaType: outputMediaType,
               dimensions: result.dimensions,
               uriIsReal: true,
               loop: result.loop,
             },
           },
         },
       };
     });
   }
 
   handleAbortCallback(
     threadID: string,
     localUploadID: string,
     abort: () => void,
   ) {
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const uploads = prevState.pendingUploads[newThreadID];
       const upload = uploads[localUploadID];
       if (!upload) {
         // The upload has been cancelled before we were even handed the
         // abort function. We should immediately abort.
         abort();
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: {
             ...uploads,
             [localUploadID]: {
               ...upload,
               abort,
             },
           },
         },
       };
     });
   }
 
   handleUploadFailure(threadID: string, localUploadID: string) {
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const uploads = prevState.pendingUploads[newThreadID];
       const upload = uploads[localUploadID];
       if (!upload || !upload.abort || upload.serverID) {
         // The upload has been cancelled or completed before it failed
         return {};
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: {
             ...uploads,
             [localUploadID]: {
               ...upload,
               failed: true,
               progressPercent: 0,
               abort: null,
             },
           },
         },
       };
     });
   }
 
   queueMediaMissionReports(
     partials: $ReadOnlyArray<{
       mediaMission: MediaMission,
       uploadLocalID?: ?string,
       uploadServerID?: ?string,
       messageLocalID?: ?string,
     }>,
   ) {
     const reports = partials.map(
       ({ mediaMission, uploadLocalID, uploadServerID, messageLocalID }) => ({
         type: reportTypes.MEDIA_MISSION,
         time: Date.now(),
         platformDetails: getConfig().platformDetails,
         mediaMission,
         uploadServerID,
         uploadLocalID,
         messageLocalID,
         id: generateReportID(),
       }),
     );
     this.props.dispatch({ type: queueReportsActionType, payload: { reports } });
   }
 
   cancelPendingUpload(threadID: ?string, localUploadID: string) {
     invariant(threadID, 'threadID should be set in cancelPendingUpload');
 
     let revokeURL, abortRequest;
     this.setState(
       prevState => {
         const newThreadID = this.getRealizedOrPendingThreadID(threadID);
         const currentPendingUploads = prevState.pendingUploads[newThreadID];
         if (!currentPendingUploads) {
           return {};
         }
         const pendingUpload = currentPendingUploads[localUploadID];
         if (!pendingUpload) {
           return {};
         }
         if (!pendingUpload.uriIsReal) {
           revokeURL = pendingUpload.uri;
         }
         if (pendingUpload.abort) {
           abortRequest = pendingUpload.abort;
         }
         if (pendingUpload.serverID) {
           this.props.deleteUpload({
             id: pendingUpload.serverID,
             keyserverOrThreadID: threadID,
           });
           if (isBlobServiceURI(pendingUpload.uri)) {
             invariant(
               pendingUpload.blobHolder,
               'blob service upload has no holder',
             );
             const endpoint = blobService.httpEndpoints.DELETE_BLOB;
             const holder = pendingUpload.blobHolder;
             const blobHash = blobHashFromBlobServiceURI(pendingUpload.uri);
             fetch(makeBlobServiceEndpointURL(endpoint), {
               method: endpoint.method,
               body: JSON.stringify({
                 holder,
                 blob_hash: blobHash,
               }),
               headers: {
                 'content-type': 'application/json',
               },
             });
           }
         }
         const newPendingUploads = _omit([localUploadID])(currentPendingUploads);
         return {
           pendingUploads: {
             ...prevState.pendingUploads,
             [newThreadID]: newPendingUploads,
           },
         };
       },
       () => {
         if (revokeURL) {
           URL.revokeObjectURL(revokeURL);
         }
         if (abortRequest) {
           abortRequest();
         }
       },
     );
   }
 
   async sendTextMessage(
     messageInfo: RawTextMessageInfo,
     inputThreadInfo: ThreadInfo,
     parentThreadInfo: ?ThreadInfo,
   ) {
     this.props.sendCallbacks.forEach(callback => callback());
 
     const { localID } = messageInfo;
     invariant(
       localID !== null && localID !== undefined,
       'localID should be set',
     );
     if (threadIsPendingSidebar(inputThreadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localID);
     }
 
     if (!threadIsPending(inputThreadInfo.id)) {
       this.props.dispatchActionPromise(
         sendTextMessageActionTypes,
         this.sendTextMessageAction(
           messageInfo,
           inputThreadInfo,
           parentThreadInfo,
         ),
         undefined,
         messageInfo,
       );
       return;
     }
 
     this.props.dispatch({
       type: sendTextMessageActionTypes.started,
       payload: messageInfo,
     });
 
     let threadInfo = inputThreadInfo;
     const { viewerID } = this.props;
     if (viewerID && inputThreadInfo.type === threadTypes.SIDEBAR) {
       invariant(parentThreadInfo, 'sidebar should have parent');
       threadInfo = patchThreadInfoToIncludeMentionedMembersOfParent(
         inputThreadInfo,
         parentThreadInfo,
         messageInfo.text,
         viewerID,
       );
       if (threadInfo !== inputThreadInfo) {
         this.props.dispatch({
           type: updateNavInfoActionType,
           payload: { pendingThread: threadInfo },
         });
       }
     }
 
     let newThreadID = null;
     try {
       newThreadID = await this.startThreadCreation(threadInfo);
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       this.props.dispatch({
         type: sendTextMessageActionTypes.failed,
         payload: copy,
         error: true,
       });
       return;
     } finally {
       this.pendingThreadCreations.delete(threadInfo.id);
     }
 
     const newMessageInfo = {
       ...messageInfo,
       threadID: newThreadID,
       time: Date.now(),
     };
-    const newThreadInfo = {
-      ...threadInfo,
-      id: newThreadID,
-    };
+
+    // Branching to appease `flow`.
+    const newThreadInfo = threadInfo.minimallyEncoded
+      ? {
+          ...threadInfo,
+          id: newThreadID,
+        }
+      : {
+          ...threadInfo,
+          id: newThreadID,
+        };
     this.props.dispatchActionPromise(
       sendTextMessageActionTypes,
       this.sendTextMessageAction(
         newMessageInfo,
         newThreadInfo,
         parentThreadInfo,
       ),
       undefined,
       newMessageInfo,
     );
   }
 
   async sendTextMessageAction(
     messageInfo: RawTextMessageInfo,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ): Promise<SendMessagePayload> {
     try {
       await this.props.textMessageCreationSideEffectsFunc(
         messageInfo,
         threadInfo,
         parentThreadInfo,
       );
       const { localID } = messageInfo;
       invariant(
         localID !== null && localID !== undefined,
         'localID should be set',
       );
       const sidebarCreation =
         this.pendingSidebarCreationMessageLocalIDs.has(localID);
       const result = await this.props.sendTextMessage({
         threadID: messageInfo.threadID,
         localID,
         text: messageInfo.text,
         sidebarCreation,
       });
       this.pendingSidebarCreationMessageLocalIDs.delete(localID);
       return {
         localID,
         serverID: result.id,
         threadID: messageInfo.threadID,
         time: result.time,
         interface: result.interface,
       };
     } catch (e) {
       const copy = cloneError(e);
       copy.localID = messageInfo.localID;
       copy.threadID = messageInfo.threadID;
       throw copy;
     }
   }
 
   // Creates a MultimediaMessage from the unassigned pending uploads,
   // if there are any
   createMultimediaMessage(localID: number, threadInfo: ThreadInfo) {
     this.props.sendCallbacks.forEach(callback => callback());
 
     const localMessageID = `${localIDPrefix}${localID}`;
     this.startThreadCreation(threadInfo);
 
     if (threadIsPendingSidebar(threadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localMessageID);
     }
 
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadInfo.id);
       const currentPendingUploads = prevState.pendingUploads[newThreadID];
       if (!currentPendingUploads) {
         return {};
       }
       const newPendingUploads = {};
       let uploadAssigned = false;
       for (const localUploadID in currentPendingUploads) {
         const upload = currentPendingUploads[localUploadID];
         if (upload.messageID) {
           newPendingUploads[localUploadID] = upload;
         } else {
           const newUpload = {
             ...upload,
             messageID: localMessageID,
           };
           uploadAssigned = true;
           newPendingUploads[localUploadID] = newUpload;
         }
       }
       if (!uploadAssigned) {
         return {};
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: newPendingUploads,
         },
       };
     });
   }
 
   setDraft(threadID: ?string, draft: string) {
     invariant(threadID, 'threadID should be set in setDraft');
 
     const newThreadID = this.getRealizedOrPendingThreadID(threadID);
     this.props.dispatch({
       type: 'UPDATE_DRAFT',
       payload: {
         key: draftKeyFromThreadID(newThreadID),
         text: draft,
       },
     });
   }
 
   setTextCursorPosition(threadID: ?string, newPosition: number) {
     invariant(threadID, 'threadID should be set in setTextCursorPosition');
 
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       return {
         textCursorPositions: {
           ...prevState.textCursorPositions,
           [newThreadID]: newPosition,
         },
       };
     });
   }
 
   setTypeaheadState = (newState: $Shape<TypeaheadState>) => {
     this.setState(prevState => ({
       typeaheadState: {
         ...prevState.typeaheadState,
         ...newState,
       },
     }));
   };
 
   setProgress(
     threadID: string,
     localUploadID: string,
     progressPercent: number,
   ) {
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadID);
       const pendingUploads = prevState.pendingUploads[newThreadID];
       if (!pendingUploads) {
         return {};
       }
       const pendingUpload = pendingUploads[localUploadID];
       if (!pendingUpload) {
         return {};
       }
       const newPendingUploads = {
         ...pendingUploads,
         [localUploadID]: {
           ...pendingUpload,
           progressPercent,
         },
       };
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: newPendingUploads,
         },
       };
     });
   }
 
   messageHasUploadFailure(
     pendingUploads: ?$ReadOnlyArray<PendingMultimediaUpload>,
   ) {
     if (!pendingUploads) {
       return false;
     }
     return pendingUploads.some(upload => upload.failed);
   }
 
   retryMultimediaMessage(
     localMessageID: string,
     threadInfo: ThreadInfo,
     pendingUploads: ?$ReadOnlyArray<PendingMultimediaUpload>,
   ) {
     this.props.sendCallbacks.forEach(callback => callback());
 
     const rawMessageInfo = this.getRawMultimediaMessageInfo(localMessageID);
     let newRawMessageInfo;
     // This conditional is for Flow
     if (rawMessageInfo.type === messageTypes.MULTIMEDIA) {
       newRawMessageInfo = ({
         ...rawMessageInfo,
         time: Date.now(),
       }: RawMediaMessageInfo);
     } else {
       newRawMessageInfo = ({
         ...rawMessageInfo,
         time: Date.now(),
       }: RawImagesMessageInfo);
     }
 
     this.startThreadCreation(threadInfo);
 
     if (threadIsPendingSidebar(threadInfo.id)) {
       this.pendingSidebarCreationMessageLocalIDs.add(localMessageID);
     }
 
     const completed = InputStateContainer.completedMessageIDs(this.state);
     if (completed.has(localMessageID)) {
       this.sendMultimediaMessage(newRawMessageInfo);
       return;
     }
 
     if (!pendingUploads) {
       return;
     }
 
     // We're not actually starting the send here,
     // we just use this action to update the message's timestamp in Redux
     this.props.dispatch({
       type: sendMultimediaMessageActionTypes.started,
       payload: newRawMessageInfo,
     });
 
     const uploadIDsToRetry = new Set();
     const uploadsToRetry = [];
     for (const pendingUpload of pendingUploads) {
       const { serverID, messageID, localID, abort } = pendingUpload;
       if (serverID || messageID !== localMessageID) {
         continue;
       }
       if (abort) {
         abort();
       }
       uploadIDsToRetry.add(localID);
       uploadsToRetry.push(pendingUpload);
     }
 
     this.setState(prevState => {
       const newThreadID = this.getRealizedOrPendingThreadID(threadInfo.id);
       const prevPendingUploads = prevState.pendingUploads[newThreadID];
       if (!prevPendingUploads) {
         return {};
       }
       const newPendingUploads = {};
       let pendingUploadChanged = false;
       for (const localID in prevPendingUploads) {
         const pendingUpload = prevPendingUploads[localID];
         if (uploadIDsToRetry.has(localID) && !pendingUpload.serverID) {
           newPendingUploads[localID] = {
             ...pendingUpload,
             failed: false,
             progressPercent: 0,
             abort: null,
           };
           pendingUploadChanged = true;
         } else {
           newPendingUploads[localID] = pendingUpload;
         }
       }
       if (!pendingUploadChanged) {
         return {};
       }
       return {
         pendingUploads: {
           ...prevState.pendingUploads,
           [newThreadID]: newPendingUploads,
         },
       };
     });
 
     this.uploadFiles(threadInfo.id, uploadsToRetry);
   }
 
   addReply = (message: string) => {
     this.replyCallbacks.forEach(addReplyCallback => addReplyCallback(message));
   };
 
   addReplyListener = (callbackReply: (message: string) => void) => {
     this.replyCallbacks.push(callbackReply);
   };
 
   removeReplyListener = (callbackReply: (message: string) => void) => {
     this.replyCallbacks = this.replyCallbacks.filter(
       candidate => candidate !== callbackReply,
     );
   };
 
   render() {
     const { activeChatThreadID } = this.props;
 
     // we're going with two selectors as we want to avoid
     // recreation of chat state setter functions on typeahead state updates
     const inputBaseState = this.inputBaseStateSelector(activeChatThreadID)({
       ...this.state,
       ...this.props,
     });
 
     const typeaheadState = this.typeaheadStateSelector({
       ...this.state,
       ...this.props,
     });
 
     const inputState = this.inputStateSelector({
       inputBaseState,
       typeaheadState,
     });
 
     return (
       <InputStateContext.Provider value={inputState}>
         {this.props.children}
       </InputStateContext.Provider>
     );
   }
 }
 
 const ConnectedInputStateContainer: React.ComponentType<BaseProps> =
   React.memo<BaseProps>(function ConnectedInputStateContainer(props) {
     const activeChatThreadID = useSelector(
       state => state.navInfo.activeChatThreadID,
     );
     const drafts = useSelector(state => state.draftStore.drafts);
     const viewerID = useSelector(
       state => state.currentUserInfo && state.currentUserInfo.id,
     );
     const messageStoreMessages = useSelector(
       state => state.messageStore.messages,
     );
     const pendingToRealizedThreadIDs = useSelector(state =>
       pendingToRealizedThreadIDsSelector(state.threadStore.threadInfos),
     );
     const calendarQuery = useSelector(nonThreadCalendarQuery);
     const callUploadMultimedia = useServerCall(uploadMultimedia);
     const callBlobServiceUpload = useBlobServiceUpload();
     const callDeleteUpload = useDeleteUpload();
     const callSendMultimediaMessage = useLegacySendMultimediaMessage();
     const callSendTextMessage = useSendTextMessage();
     const callNewThread = useNewThread();
     const dispatch = useDispatch();
     const dispatchActionPromise = useDispatchActionPromise();
     const modalContext = useModalContext();
 
     const [sendCallbacks, setSendCallbacks] = React.useState<
       $ReadOnlyArray<() => mixed>,
     >([]);
     const registerSendCallback = React.useCallback((callback: () => mixed) => {
       setSendCallbacks(prevCallbacks => [...prevCallbacks, callback]);
     }, []);
     const unregisterSendCallback = React.useCallback(
       (callback: () => mixed) => {
         setSendCallbacks(prevCallbacks =>
           prevCallbacks.filter(candidate => candidate !== callback),
         );
       },
       [],
     );
     const textMessageCreationSideEffectsFunc =
       useMessageCreationSideEffectsFunc(messageTypes.TEXT);
 
     return (
       <InputStateContainer
         {...props}
         activeChatThreadID={activeChatThreadID}
         drafts={drafts}
         viewerID={viewerID}
         messageStoreMessages={messageStoreMessages}
         pendingRealizedThreadIDs={pendingToRealizedThreadIDs}
         calendarQuery={calendarQuery}
         uploadMultimedia={callUploadMultimedia}
         blobServiceUpload={callBlobServiceUpload}
         deleteUpload={callDeleteUpload}
         sendMultimediaMessage={callSendMultimediaMessage}
         sendTextMessage={callSendTextMessage}
         newThread={callNewThread}
         dispatch={dispatch}
         dispatchActionPromise={dispatchActionPromise}
         pushModal={modalContext.pushModal}
         sendCallbacks={sendCallbacks}
         registerSendCallback={registerSendCallback}
         unregisterSendCallback={unregisterSendCallback}
         textMessageCreationSideEffectsFunc={textMessageCreationSideEffectsFunc}
       />
     );
   });
 
 export default ConnectedInputStateContainer;
diff --git a/web/input/input-state.js b/web/input/input-state.js
index 48a0f2344..e851dd220 100644
--- a/web/input/input-state.js
+++ b/web/input/input-state.js
@@ -1,96 +1,105 @@
 // @flow
 
 import * as React from 'react';
 
 import {
   type MediaType,
   type EncryptedMediaType,
   type Dimensions,
   type MediaMissionStep,
 } from 'lib/types/media-types.js';
 import type { RawTextMessageInfo } from 'lib/types/messages/text.js';
+import type {
+  MinimallyEncodedRelativeMemberInfo,
+  MinimallyEncodedThreadInfo,
+} from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type {
   ThreadInfo,
   RelativeMemberInfo,
   ChatMentionCandidates,
 } from 'lib/types/thread-types.js';
 
 export type PendingMultimediaUpload = {
   +localID: string,
   // Pending uploads are assigned a serverID once they are complete
   +serverID: ?string,
   // Pending uploads are assigned a messageID once they are sent
   +messageID: ?string,
   // This is set to true if the upload fails for whatever reason
   +failed: boolean,
   +file: File,
   +mediaType: MediaType | EncryptedMediaType,
   +dimensions: ?Dimensions,
   +uri: string,
   +blobHolder: ?string,
   +blobHash: ?string,
   +encryptionKey: ?string,
   +thumbHash: ?string,
   +loop: boolean,
   // URLs created with createObjectURL aren't considered "real". The distinction
   // is required because those "fake" URLs must be disposed properly
   +uriIsReal: boolean,
   +progressPercent: number,
   // This is set once the network request begins and used if the upload is
   // cancelled
   +abort: ?() => void,
   +steps: MediaMissionStep[],
   +selectTime: number,
   +shouldEncrypt: boolean,
 };
 
 export type TypeaheadState = {
   +canBeVisible: boolean,
   +keepUpdatingThreadMembers: boolean,
-  +frozenUserMentionsCandidates: $ReadOnlyArray<RelativeMemberInfo>,
+  +frozenUserMentionsCandidates: $ReadOnlyArray<
+    RelativeMemberInfo | MinimallyEncodedRelativeMemberInfo,
+  >,
   +frozenChatMentionsCandidates: ChatMentionCandidates,
   +moveChoiceUp: ?() => void,
   +moveChoiceDown: ?() => void,
   +close: ?() => void,
   +accept: ?() => void,
 };
 
 // This type represents the input state for a particular thread
 export type InputState = {
   +pendingUploads: $ReadOnlyArray<PendingMultimediaUpload>,
   +assignedUploads: {
     [messageID: string]: $ReadOnlyArray<PendingMultimediaUpload>,
   },
   +draft: string,
   +textCursorPosition: number,
   +typeaheadState: TypeaheadState,
   +appendFiles: (
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
     files: $ReadOnlyArray<File>,
   ) => Promise<boolean>,
   +cancelPendingUpload: (localUploadID: string) => void,
   +sendTextMessage: (
     messageInfo: RawTextMessageInfo,
-    threadInfo: ThreadInfo,
-    parentThreadInfo: ?ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+    parentThreadInfo: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
   ) => Promise<void>,
-  +createMultimediaMessage: (localID: number, threadInfo: ThreadInfo) => void,
+  +createMultimediaMessage: (
+    localID: number,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  ) => void,
   +setDraft: (draft: string) => void,
   +setTextCursorPosition: (newPosition: number) => void,
   +setTypeaheadState: ($Shape<TypeaheadState>) => void,
   +messageHasUploadFailure: (localMessageID: string) => boolean,
   +retryMultimediaMessage: (
     localMessageID: string,
-    threadInfo: ThreadInfo,
+    threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   ) => void,
   +addReply: (text: string) => void,
   +addReplyListener: ((message: string) => void) => void,
   +removeReplyListener: ((message: string) => void) => void,
   +registerSendCallback: (() => mixed) => void,
   +unregisterSendCallback: (() => mixed) => void,
 };
 
 const InputStateContext: React.Context<?InputState> =
   React.createContext<?InputState>(null);
 
 export { InputStateContext };
diff --git a/web/modals/chat/message-results-modal.react.js b/web/modals/chat/message-results-modal.react.js
index 1732d5e44..383a41917 100644
--- a/web/modals/chat/message-results-modal.react.js
+++ b/web/modals/chat/message-results-modal.react.js
@@ -1,149 +1,150 @@
 // @flow
 
 import * as React from 'react';
 
 import {
   fetchPinnedMessageActionTypes,
   useFetchPinnedMessages,
 } from 'lib/actions/message-actions.js';
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import { messageListData } from 'lib/selectors/chat-selectors.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import {
   createMessageInfo,
   isInvalidPinSourceForThread,
   modifyItemForResultScreen,
 } from 'lib/shared/message-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 
 import css from './message-results-modal.css';
 import MessageResult from '../../components/message-result.react.js';
 import LoadingIndicator from '../../loading-indicator.react.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import Modal from '../modal.react.js';
 
 type MessageResultsModalProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +modalName: string,
 };
 
 const loadingStatusSelector = createLoadingStatusSelector(
   fetchPinnedMessageActionTypes,
 );
 
 function MessageResultsModal(props: MessageResultsModalProps): React.Node {
   const { threadInfo, modalName } = props;
   const { id: threadID } = threadInfo;
   const { popModal } = useModalContext();
   const [rawMessageResults, setRawMessageResults] = React.useState([]);
 
   const callFetchPinnedMessages = useFetchPinnedMessages();
   const dispatchActionPromise = useDispatchActionPromise();
 
   const userInfos = useSelector(state => state.userStore.userInfos);
   const loadingStatus = useSelector(loadingStatusSelector);
 
   React.useEffect(() => {
     dispatchActionPromise(
       fetchPinnedMessageActionTypes,
       (async () => {
         const result = await callFetchPinnedMessages({ threadID });
         setRawMessageResults(result.pinnedMessages);
       })(),
     );
   }, [dispatchActionPromise, callFetchPinnedMessages, threadID]);
 
   const translatedMessageResults = React.useMemo(() => {
     const threadInfos = { [threadID]: threadInfo };
 
     return rawMessageResults
       .map(messageInfo =>
         createMessageInfo(messageInfo, null, userInfos, threadInfos),
       )
       .filter(Boolean);
   }, [rawMessageResults, userInfos, threadID, threadInfo]);
 
   const chatMessageInfos = useSelector(
     messageListData(threadInfo.id, translatedMessageResults),
   );
 
   const sortedUniqueChatMessageInfoItems = React.useMemo(() => {
     if (!chatMessageInfos) {
       return [];
     }
 
     const chatMessageInfoItems = chatMessageInfos.filter(
       item =>
         item.itemType === 'message' &&
         item.isPinned &&
         !isInvalidPinSourceForThread(item.messageInfo, threadInfo),
     );
 
     // By the nature of using messageListData and passing in
     // the desired translatedMessageResults as additional
     // messages, we will have duplicate ChatMessageInfoItems.
     const uniqueChatMessageInfoItemsMap = new Map();
     chatMessageInfoItems.forEach(
       item =>
         item.messageInfo &&
         item.messageInfo.id &&
         uniqueChatMessageInfoItemsMap.set(item.messageInfo.id, item),
     );
 
     // Push the items in the order they appear in the rawMessageResults
     // since the messages fetched from the server are already sorted
     // in the order of pin_time (newest first).
     const sortedChatMessageInfoItems = [];
     for (let i = 0; i < rawMessageResults.length; i++) {
       sortedChatMessageInfoItems.push(
         uniqueChatMessageInfoItemsMap.get(rawMessageResults[i].id),
       );
     }
 
     return sortedChatMessageInfoItems;
   }, [chatMessageInfos, rawMessageResults, threadInfo]);
 
   const modifiedItems = React.useMemo(
     () =>
       sortedUniqueChatMessageInfoItems
         .filter(Boolean)
         .map(item => modifyItemForResultScreen(item)),
     [sortedUniqueChatMessageInfoItems],
   );
 
   const messageResultsToDisplay = React.useMemo(() => {
     const items = modifiedItems.map(item => (
       <MessageResult
         key={item.messageInfo.id}
         item={item}
         threadInfo={threadInfo}
         scrollable={false}
       />
     ));
     return <>{items}</>;
   }, [modifiedItems, threadInfo]);
 
   const loadingIndicator = React.useMemo(() => {
     if (loadingStatus === 'loading') {
       return (
         <div className={css.loadingIndicator}>
           <LoadingIndicator status="loading" size="medium" />
         </div>
       );
     }
     return null;
   }, [loadingStatus]);
 
   return (
     <Modal name={modalName} onClose={popModal} size="large">
       <hr className={css.separator} />
       <div className={css.topSpace}>{loadingIndicator}</div>
       <div className={css.messageResultsContainer}>
         {messageResultsToDisplay}
       </div>
     </Modal>
   );
 }
 
 export default MessageResultsModal;
diff --git a/web/modals/chat/sidebar-promote-modal.react.js b/web/modals/chat/sidebar-promote-modal.react.js
index 3b6e087c7..3decd7ef2 100644
--- a/web/modals/chat/sidebar-promote-modal.react.js
+++ b/web/modals/chat/sidebar-promote-modal.react.js
@@ -1,52 +1,53 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import css from './sidebar-promote-modal.css';
 import Button from '../../components/button.react.js';
 import Modal from '../modal.react.js';
 
 type Props = {
   +onClose: () => void,
   +onConfirm: () => void,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 function SidebarPromoteModal(props: Props): React.Node {
   const { threadInfo, onClose, onConfirm } = props;
   const { uiName } = useResolvedThreadInfo(threadInfo);
 
   const handleConfirm = React.useCallback(() => {
     onConfirm();
     onClose();
   }, [onClose, onConfirm]);
 
   return (
     <Modal
       size="large"
       name="Promote to channel"
       icon="warning-circle"
       onClose={onClose}
     >
       <div className={css.modal_body}>
         <p>
           {`Are you sure you want to promote "${uiName}"? 
           Promoting a thread to a channel cannot be undone.`}
         </p>
         <div className={css.buttonContainer}>
           <Button onClick={onClose} type="submit" variant="outline">
             Cancel
           </Button>
           <Button onClick={handleConfirm} type="submit" variant="filled">
             Promote to channel
           </Button>
         </div>
       </div>
     </Modal>
   );
 }
 
 export default SidebarPromoteModal;
diff --git a/web/modals/chat/toggle-pin-modal.react.js b/web/modals/chat/toggle-pin-modal.react.js
index c34127fe7..061d79ce2 100644
--- a/web/modals/chat/toggle-pin-modal.react.js
+++ b/web/modals/chat/toggle-pin-modal.react.js
@@ -1,130 +1,131 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import {
   useToggleMessagePin,
   toggleMessagePinActionTypes,
 } from 'lib/actions/message-actions.js';
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import type { ChatMessageInfoItem } from 'lib/selectors/chat-selectors.js';
 import { modifyItemForResultScreen } from 'lib/shared/message-utils.js';
 import type { RawMessageInfo } from 'lib/types/message-types.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 
 import css from './toggle-pin-modal.css';
 import Button, { buttonThemes } from '../../components/button.react.js';
 import MessageResult from '../../components/message-result.react.js';
 import Modal from '../modal.react.js';
 
 type TogglePinModalProps = {
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 function TogglePinModal(props: TogglePinModalProps): React.Node {
   const { item, threadInfo } = props;
   const { messageInfo, isPinned } = item;
   const { popModal } = useModalContext();
 
   const callToggleMessagePin = useToggleMessagePin();
   const dispatchActionPromise = useDispatchActionPromise();
 
   const modalInfo = React.useMemo(() => {
     if (isPinned) {
       return {
         name: 'Remove Pinned Message',
         action: 'unpin',
         confirmationText:
           'Are you sure you want to remove this pinned message?',
         buttonText: 'Remove Pinned Message',
         buttonColor: buttonThemes.danger,
       };
     }
 
     return {
       name: 'Pin Message',
       action: 'pin',
       confirmationText: `You may pin this message to the channel 
         you are currently viewing. To unpin a message, select the pinned 
         messages icon in the channel.`,
       buttonText: 'Pin Message',
       buttonColor: buttonThemes.standard,
     };
   }, [isPinned]);
 
   // We want to remove inline engagement (threadCreatedFromMessage / reactions)
   // and the message header (startsConversation). We also want to set isViewer
   // to false so that the message is left-aligned and uncolored.
   const modifiedItem = React.useMemo(() => {
     if (item.messageInfoType !== 'composable') {
       return item;
     }
 
     const strippedItem = {
       ...item,
       threadCreatedFromMessage: undefined,
       reactions: {},
     };
     return modifyItemForResultScreen(strippedItem);
   }, [item]);
 
   const onClick = React.useCallback(() => {
     const createToggleMessagePinPromise = async () => {
       invariant(messageInfo.id, 'messageInfo.id should be defined');
       const result = await callToggleMessagePin({
         messageID: messageInfo.id,
         action: modalInfo.action,
       });
       return ({
         newMessageInfos: result.newMessageInfos,
         threadID: result.threadID,
       }: {
         +newMessageInfos: $ReadOnlyArray<RawMessageInfo>,
         +threadID: string,
       });
     };
 
     dispatchActionPromise(
       toggleMessagePinActionTypes,
       createToggleMessagePinPromise(),
     );
     popModal();
   }, [
     modalInfo,
     callToggleMessagePin,
     dispatchActionPromise,
     messageInfo.id,
     popModal,
   ]);
 
   return (
     <Modal name={modalInfo.name} onClose={popModal} size="large">
       <div className={css.confirmationText}>{modalInfo.confirmationText}</div>
       <div className={css.messageContainer}>
         <MessageResult
           item={modifiedItem}
           threadInfo={threadInfo}
           scrollable={true}
         />
       </div>
       <div className={css.buttonContainer}>
         <Button
           variant="filled"
           className={css.togglePinButton}
           buttonColor={modalInfo.buttonColor}
           onClick={onClick}
         >
           {modalInfo.buttonText}
         </Button>
         <div className={css.cancelButton} onClick={popModal}>
           Cancel
         </div>
       </div>
     </Modal>
   );
 }
 
 export default TogglePinModal;
diff --git a/web/modals/search/message-search-modal.react.js b/web/modals/search/message-search-modal.react.js
index c155c03c0..ac375efbe 100644
--- a/web/modals/search/message-search-modal.react.js
+++ b/web/modals/search/message-search-modal.react.js
@@ -1,158 +1,159 @@
 // @flow
 
 import * as React from 'react';
 
 import { useModalContext } from 'lib/components/modal-provider.react.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import css from './message-search-modal.css';
 import { useParseSearchResults } from './message-search-utils.react.js';
 import { useTooltipContext } from '../../chat/tooltip-provider.js';
 import Button from '../../components/button.react.js';
 import MessageResult from '../../components/message-result.react.js';
 import Search from '../../components/search.react.js';
 import LoadingIndicator from '../../loading-indicator.react.js';
 import { useMessageSearchContext } from '../../search/message-search-state-provider.react.js';
 import Modal from '../modal.react.js';
 
 type ContentProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 function MessageSearchModal(props: ContentProps): React.Node {
   const { threadInfo } = props;
 
   const {
     getQuery,
     setQuery,
     clearQuery,
     searchMessages,
     getSearchResults,
     getEndReached,
   } = useMessageSearchContext();
 
   const [input, setInput] = React.useState(getQuery(threadInfo.id));
 
   const onPressSearch = React.useCallback(() => {
     setQuery(input, threadInfo.id);
     searchMessages(threadInfo.id);
   }, [setQuery, input, searchMessages, threadInfo.id]);
 
   const onKeyDown = React.useCallback(
     event => {
       if (event.key === 'Enter') {
         onPressSearch();
       }
     },
     [onPressSearch],
   );
 
   const modifiedItems = useParseSearchResults(
     threadInfo,
     getSearchResults(threadInfo.id),
   );
 
   const { clearTooltip } = useTooltipContext();
 
   const messageContainer = React.useRef(null);
 
   const possiblyLoadMoreMessages = React.useCallback(() => {
     if (!messageContainer.current) {
       return;
     }
 
     const loaderTopOffset = 32;
     const { scrollTop, scrollHeight, clientHeight } = messageContainer.current;
     if (Math.abs(scrollTop) + clientHeight + loaderTopOffset < scrollHeight) {
       return;
     }
     searchMessages(threadInfo.id);
   }, [searchMessages, threadInfo.id]);
 
   const onScroll = React.useCallback(() => {
     clearTooltip();
     possiblyLoadMoreMessages();
   }, [clearTooltip, possiblyLoadMoreMessages]);
 
   const renderItem = React.useCallback(
     item => (
       <MessageResult
         key={item.messageInfo.id}
         item={item}
         threadInfo={threadInfo}
         scrollable={false}
       />
     ),
     [threadInfo],
   );
 
   const messages = React.useMemo(
     () => modifiedItems.map(item => renderItem(item)),
     [modifiedItems, renderItem],
   );
 
   const endReached = getEndReached(threadInfo.id);
   const query = getQuery(threadInfo.id);
 
   const footer = React.useMemo(() => {
     if (query === '') {
       return (
         <div className={css.footer}>Your search results will appear here</div>
       );
     }
     if (!endReached) {
       return (
         <div key="search-loader" className={css.loading}>
           <LoadingIndicator status="loading" size="medium" color="white" />
         </div>
       );
     }
     if (modifiedItems.length > 0) {
       return <div className={css.footer}>End of results</div>;
     }
     return (
       <div className={css.footer}>
         No results. Please try using different keywords to refine your search
       </div>
     );
   }, [query, endReached, modifiedItems.length]);
 
   const { uiName } = useResolvedThreadInfo(threadInfo);
   const searchPlaceholder = `Searching in ${uiName}`;
   const { popModal } = useModalContext();
 
   const clearQueryWrapper = React.useCallback(
     () => clearQuery(threadInfo.id),
     [clearQuery, threadInfo.id],
   );
 
   return (
     <Modal name="Search messages" onClose={popModal} size="large">
       <div className={css.container}>
         <div className={css.header}>
           <Search
             onChangeText={setInput}
             searchText={input}
             placeholder={searchPlaceholder}
             onClearText={clearQueryWrapper}
             onKeyDown={onKeyDown}
           />
           <Button
             onClick={onPressSearch}
             variant="filled"
             className={css.button}
           >
             Search
           </Button>
         </div>
         <div className={css.content} ref={messageContainer} onScroll={onScroll}>
           {messages}
           {footer}
         </div>
       </div>
     </Modal>
   );
 }
 
 export default MessageSearchModal;
diff --git a/web/modals/threads/confirm-leave-thread-modal.react.js b/web/modals/threads/confirm-leave-thread-modal.react.js
index 4d846d402..374ca9704 100644
--- a/web/modals/threads/confirm-leave-thread-modal.react.js
+++ b/web/modals/threads/confirm-leave-thread-modal.react.js
@@ -1,53 +1,54 @@
 // @flow
 
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import css from './confirm-leave-thread-modal.css';
 import Button, { buttonThemes } from '../../components/button.react.js';
 import Modal from '../modal.react.js';
 
 type Props = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +onClose: () => void,
   +onConfirm: () => void,
 };
 function ConfirmLeaveThreadModal(props: Props): React.Node {
   const { threadInfo, onClose, onConfirm } = props;
   const { uiName } = useResolvedThreadInfo(threadInfo);
 
   return (
     <Modal
       size="fit-content"
       name="Leaving channel"
       icon="warning-circle"
       withCloseButton={false}
       onClose={onClose}
     >
       <div className={css.container}>
         <p>
           {'Are you sure you want to leave "'}
           <span className={css['thread-name']}>{uiName}</span>
           {'"?'}
         </p>
         <div className={css.buttonContainer}>
           <Button variant="outline" onClick={onClose}>
             Cancel
           </Button>
           <Button
             variant="filled"
             buttonColor={buttonThemes.danger}
             onClick={onConfirm}
             type="submit"
           >
             Yes, leave chat
           </Button>
         </div>
       </div>
     </Modal>
   );
 }
 
 export default ConfirmLeaveThreadModal;
diff --git a/web/modals/threads/create/compose-subchannel-modal.react.js b/web/modals/threads/create/compose-subchannel-modal.react.js
index e1b455f94..36bc06bb9 100644
--- a/web/modals/threads/create/compose-subchannel-modal.react.js
+++ b/web/modals/threads/create/compose-subchannel-modal.react.js
@@ -1,276 +1,277 @@
 // @flow
 import * as React from 'react';
 import { useDispatch, useSelector } from 'react-redux';
 
 import {
   useNewThread,
   newThreadActionTypes,
 } from 'lib/actions/thread-actions.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useDispatchActionPromise } from 'lib/utils/action-utils.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 import { trimText } from 'lib/utils/text-utils.js';
 
 import css from './compose-subchannel-modal.css';
 import SubchannelMembers from './steps/subchannel-members.react.js';
 import SubchannelSettings from './steps/subchannel-settings.react.js';
 import type { VisibilityType } from './steps/subchannel-settings.react.js';
 import Stepper from '../../../components/stepper.react.js';
 import { updateNavInfoActionType } from '../../../redux/action-types.js';
 import { nonThreadCalendarQuery } from '../../../selectors/nav-selectors.js';
 import Modal from '../../modal.react.js';
 
 type Props = {
   +onClose: () => void,
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 const getThreadType = (visibility: VisibilityType, announcement: boolean) => {
   if (visibility === 'open') {
     return announcement
       ? threadTypes.COMMUNITY_OPEN_ANNOUNCEMENT_SUBTHREAD
       : threadTypes.COMMUNITY_OPEN_SUBTHREAD;
   } else {
     return announcement
       ? threadTypes.COMMUNITY_SECRET_ANNOUNCEMENT_SUBTHREAD
       : threadTypes.COMMUNITY_SECRET_SUBTHREAD;
   }
 };
 
 type Steps = 'settings' | 'members';
 
 type HeaderProps = {
   +parentThreadName: string,
 };
 
 function ComposeSubchannelHeader(props: HeaderProps): React.Node {
   const { parentThreadName } = props;
   return (
     <div className={css.modalHeader}>
       <div>{'within '}</div>
       <div className={css.modalHeaderParentName}>{parentThreadName}</div>
     </div>
   );
 }
 
 const createSubchannelLoadingStatusSelector =
   createLoadingStatusSelector(newThreadActionTypes);
 
 function ComposeSubchannelModal(props: Props): React.Node {
   const { parentThreadInfo, onClose } = props;
   const { uiName: parentThreadName } = useResolvedThreadInfo(parentThreadInfo);
 
   const [activeStep, setActiveStep] = React.useState<Steps>('settings');
 
   const [channelName, setChannelName] = React.useState<string>('');
   const [visibilityType, setVisibilityType] =
     React.useState<VisibilityType>('open');
   const [announcement, setAnnouncement] = React.useState<boolean>(false);
   const [selectedUsers, setSelectedUsers] = React.useState<
     $ReadOnlySet<string>,
   >(new Set());
   const [searchUserText, setSearchUserText] = React.useState<string>('');
 
   const loadingState = useSelector(createSubchannelLoadingStatusSelector);
 
   const [errorMessage, setErrorMessage] = React.useState<string>('');
 
   const calendarQuery = useSelector(nonThreadCalendarQuery);
   const callNewThread = useNewThread();
 
   const dispatchActionPromise = useDispatchActionPromise();
   const dispatch = useDispatch();
 
   const createSubchannel = React.useCallback(async () => {
     try {
       const threadType = getThreadType(visibilityType, announcement);
 
       const query = calendarQuery();
       const result = await callNewThread({
         name: channelName,
         type: threadType,
         parentThreadID: parentThreadInfo.id,
         initialMemberIDs: Array.from(selectedUsers),
         calendarQuery: query,
         color: parentThreadInfo.color,
       });
 
       return result;
     } catch (e) {
       await setErrorMessage('unknown error');
       return null;
     }
   }, [
     parentThreadInfo,
     selectedUsers,
     visibilityType,
     announcement,
     callNewThread,
     calendarQuery,
     channelName,
   ]);
 
   const dispatchCreateSubchannel = React.useCallback(async () => {
     await setErrorMessage('');
 
     const response = createSubchannel();
     await dispatchActionPromise(newThreadActionTypes, response);
     const result = await response;
 
     if (result) {
       const { newThreadID } = result;
       await dispatch({
         type: updateNavInfoActionType,
         payload: {
           activeChatThreadID: newThreadID,
         },
       });
 
       props.onClose();
     }
   }, [dispatchActionPromise, createSubchannel, props, dispatch]);
 
   const onChangeChannelName = React.useCallback(
     (event: SyntheticEvent<HTMLInputElement>) => {
       const target = event.currentTarget;
       setChannelName(target.value);
     },
     [],
   );
 
   const onOpenVisibilityTypeSelected = React.useCallback(
     () => setVisibilityType('open'),
     [],
   );
 
   const onSecretVisibilityTypeSelected = React.useCallback(
     () => setVisibilityType('secret'),
     [],
   );
 
   const onAnnouncementSelected = React.useCallback(
     () => setAnnouncement(!announcement),
     [announcement],
   );
 
   const toggleUserSelection = React.useCallback((userID: string) => {
     setSelectedUsers((users: $ReadOnlySet<string>) => {
       const newUsers = new Set(users);
       if (newUsers.has(userID)) {
         newUsers.delete(userID);
       } else {
         newUsers.add(userID);
       }
       return newUsers;
     });
   }, []);
 
   const subchannelSettings = React.useMemo(
     () => (
       <SubchannelSettings
         channelName={channelName}
         visibilityType={visibilityType}
         announcement={announcement}
         onChangeChannelName={onChangeChannelName}
         onOpenTypeSelect={onOpenVisibilityTypeSelected}
         onSecretTypeSelect={onSecretVisibilityTypeSelected}
         onAnnouncementSelected={onAnnouncementSelected}
       />
     ),
     [
       channelName,
       visibilityType,
       announcement,
       onChangeChannelName,
       onOpenVisibilityTypeSelected,
       onSecretVisibilityTypeSelected,
       onAnnouncementSelected,
     ],
   );
 
   const stepperButtons = React.useMemo(
     () => ({
       settings: {
         nextProps: {
           content: 'Next',
           disabled: !channelName.trim(),
           onClick: () => {
             setErrorMessage('');
             setChannelName(channelName.trim());
             setActiveStep('members');
           },
         },
       },
       members: {
         prevProps: {
           content: 'Back',
           onClick: () => setActiveStep('settings'),
         },
         nextProps: {
           content: 'Create',
           loading: loadingState === 'loading',
           disabled: selectedUsers.size === 0,
           onClick: () => {
             dispatchCreateSubchannel();
           },
         },
       },
     }),
     [channelName, dispatchCreateSubchannel, loadingState, selectedUsers],
   );
 
   const subchannelMembers = React.useMemo(
     () => (
       <SubchannelMembers
         parentThreadInfo={parentThreadInfo}
         selectedUsers={selectedUsers}
         searchText={searchUserText}
         setSearchText={setSearchUserText}
         toggleUserSelection={toggleUserSelection}
       />
     ),
     [
       selectedUsers,
       toggleUserSelection,
       parentThreadInfo,
       searchUserText,
       setSearchUserText,
     ],
   );
 
   const modalName =
     activeStep === 'members'
       ? `Create channel - ${trimText(channelName, 11)}`
       : 'Create channel';
 
   return (
     <Modal name={modalName} onClose={onClose} size="fit-content">
       <div className={css.container}>
         <ComposeSubchannelHeader parentThreadName={parentThreadName} />
         <div className={css.stepItem}>
           <Stepper.Container
             className={css.stepContainer}
             activeStep={activeStep}
           >
             <Stepper.Item
               content={subchannelSettings}
               name="settings"
               nextProps={stepperButtons.settings.nextProps}
             />
             <Stepper.Item
               content={subchannelMembers}
               name="members"
               prevProps={stepperButtons.members.prevProps}
               nextProps={stepperButtons.members.nextProps}
               errorMessage={errorMessage}
             />
           </Stepper.Container>
         </div>
       </div>
     </Modal>
   );
 }
 
 export default ComposeSubchannelModal;
diff --git a/web/modals/threads/create/steps/subchannel-members-list.react.js b/web/modals/threads/create/steps/subchannel-members-list.react.js
index f0dab1043..4a41c4b52 100644
--- a/web/modals/threads/create/steps/subchannel-members-list.react.js
+++ b/web/modals/threads/create/steps/subchannel-members-list.react.js
@@ -1,103 +1,128 @@
 // @flow
 
 import * as React from 'react';
 import { useSelector } from 'react-redux';
 
 import { useENSNames } from 'lib/hooks/ens-cache.js';
 import { stringForUser } from 'lib/shared/user-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import type { UserListItem } from 'lib/types/user-types.js';
 
 import AddMembersList from '../../../components/add-members-list.react.js';
 
 type Props = {
   +searchText: string,
   +searchResult: $ReadOnlySet<string>,
-  +communityThreadInfo: ThreadInfo,
-  +parentThreadInfo: ThreadInfo,
+  +communityThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +selectedUsers: $ReadOnlySet<string>,
   +toggleUserSelection: (userID: string) => void,
 };
 
 function SubchannelMembersList(props: Props): React.Node {
   const {
     searchText,
     searchResult,
     communityThreadInfo,
     parentThreadInfo,
     selectedUsers,
     toggleUserSelection,
   } = props;
 
-  const { members: parentMembers } = parentThreadInfo;
-
-  const { members: communityMembers, name: communityName } =
-    communityThreadInfo;
+  const { name: communityName } = communityThreadInfo;
 
   const currentUserId = useSelector(state => state.currentUserInfo.id);
 
   const parentMembersSet = React.useMemo(
     () => new Set(parentThreadInfo.members.map(user => user.id)),
     [parentThreadInfo],
   );
 
-  const parentMemberListWithoutENSNames = React.useMemo(
-    () =>
-      parentMembers
+  const parentMemberListWithoutENSNames = React.useMemo(() => {
+    // Branching to appease `flow`.
+    if (parentThreadInfo.minimallyEncoded) {
+      return parentThreadInfo.members
+        .filter(
+          user =>
+            user.id !== currentUserId &&
+            (searchResult.has(user.id) || searchText.length === 0),
+        )
+        .map(user => ({ id: user.id, username: stringForUser(user) }));
+    } else {
+      return parentThreadInfo.members
         .filter(
           user =>
             user.id !== currentUserId &&
             (searchResult.has(user.id) || searchText.length === 0),
         )
-        .map(user => ({ id: user.id, username: stringForUser(user) })),
+        .map(user => ({ id: user.id, username: stringForUser(user) }));
+    }
+  }, [
+    currentUserId,
+    parentThreadInfo.members,
+    parentThreadInfo.minimallyEncoded,
+    searchResult,
+    searchText.length,
+  ]);
 
-    [parentMembers, currentUserId, searchResult, searchText],
-  );
   const parentMemberList = useENSNames<UserListItem>(
     parentMemberListWithoutENSNames,
   );
 
-  const otherMemberListWithoutENSNames = React.useMemo(
-    () =>
-      communityMembers
+  const otherMemberListWithoutENSNames = React.useMemo(() => {
+    // Branching to appease `flow`.
+    if (communityThreadInfo.minimallyEncoded) {
+      return communityThreadInfo.members
         .filter(
           user =>
             !parentMembersSet.has(user.id) &&
             user.id !== currentUserId &&
             (searchResult.has(user.id) || searchText.length === 0),
         )
-        .map(user => ({ id: user.id, username: stringForUser(user) })),
-    [
-      communityMembers,
-      parentMembersSet,
-      currentUserId,
-      searchResult,
-      searchText,
-    ],
-  );
+        .map(user => ({ id: user.id, username: stringForUser(user) }));
+    } else {
+      return communityThreadInfo.members
+        .filter(
+          user =>
+            !parentMembersSet.has(user.id) &&
+            user.id !== currentUserId &&
+            (searchResult.has(user.id) || searchText.length === 0),
+        )
+        .map(user => ({ id: user.id, username: stringForUser(user) }));
+    }
+  }, [
+    communityThreadInfo.members,
+    communityThreadInfo.minimallyEncoded,
+    currentUserId,
+    parentMembersSet,
+    searchResult,
+    searchText.length,
+  ]);
+
   const otherMemberList = useENSNames<UserListItem>(
     otherMemberListWithoutENSNames,
   );
 
   const sortedGroupedUserList = React.useMemo(
     () =>
       [
         { header: 'Users in parent channel', userInfos: parentMemberList },
         {
           header: `All users in ${communityName ?? 'community'}`,
           userInfos: otherMemberList,
         },
       ].filter(item => item.userInfos.length),
     [parentMemberList, otherMemberList, communityName],
   );
 
   return (
     <AddMembersList
       switchUser={toggleUserSelection}
       pendingUsersToAdd={selectedUsers}
       sortedGroupedUsersList={sortedGroupedUserList}
     />
   );
 }
 
 export default SubchannelMembersList;
diff --git a/web/modals/threads/create/steps/subchannel-members.react.js b/web/modals/threads/create/steps/subchannel-members.react.js
index 446d38056..48be25b4d 100644
--- a/web/modals/threads/create/steps/subchannel-members.react.js
+++ b/web/modals/threads/create/steps/subchannel-members.react.js
@@ -1,64 +1,65 @@
 // @flow
 
 import * as React from 'react';
 import { useSelector } from 'react-redux';
 
 import { userStoreSearchIndex } from 'lib/selectors/user-selectors.js';
 import { useAncestorThreads } from 'lib/shared/ancestor-threads.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import MembersList from './subchannel-members-list.react.js';
 import css from './subchannel-members.css';
 import Search from '../../../../components/search.react.js';
 
 type SubchannelMembersProps = {
-  +parentThreadInfo: ThreadInfo,
+  +parentThreadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
   +selectedUsers: $ReadOnlySet<string>,
   +searchText: string,
   +setSearchText: string => void,
   +toggleUserSelection: (userID: string) => void,
 };
 
 function SubchannelMembers(props: SubchannelMembersProps): React.Node {
   const {
     toggleUserSelection,
     searchText,
     setSearchText,
     parentThreadInfo,
     selectedUsers,
   } = props;
 
   const ancestorThreads = useAncestorThreads(parentThreadInfo);
 
   const communityThread = ancestorThreads[0] ?? parentThreadInfo;
 
   const userSearchIndex = useSelector(userStoreSearchIndex);
   const searchResult = React.useMemo(
     () => new Set(userSearchIndex.getSearchResults(searchText)),
     [userSearchIndex, searchText],
   );
 
   return (
     <>
       <div className={css.searchBar}>
         <Search
           searchText={searchText}
           onChangeText={setSearchText}
           placeholder="Search"
         />
       </div>
       <div className={css.members}>
         <MembersList
           communityThreadInfo={communityThread}
           parentThreadInfo={parentThreadInfo}
           selectedUsers={selectedUsers}
           searchResult={searchResult}
           searchText={searchText}
           toggleUserSelection={toggleUserSelection}
         />
       </div>
     </>
   );
 }
 
 export default SubchannelMembers;
diff --git a/web/navigation-panels/chat-thread-ancestors.react.js b/web/navigation-panels/chat-thread-ancestors.react.js
index 75a136bf3..89b13a93a 100644
--- a/web/navigation-panels/chat-thread-ancestors.react.js
+++ b/web/navigation-panels/chat-thread-ancestors.react.js
@@ -1,73 +1,74 @@
 // @flow
 
 import classnames from 'classnames';
 import * as React from 'react';
 import { ChevronRight } from 'react-feather';
 
 import { useAncestorThreads } from 'lib/shared/ancestor-threads.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { useResolvedThreadInfo } from 'lib/utils/entity-helpers.js';
 
 import css from './chat-thread-ancestors.css';
 
 type ThreadAncestorsProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function ThreadAncestors(props: ThreadAncestorsProps): React.Node {
   const { threadInfo } = props;
 
   const ancestorThreadsWithCommunity = useAncestorThreads(threadInfo);
 
   const community = ancestorThreadsWithCommunity[0] ?? threadInfo;
   const resolvedCommunity = useResolvedThreadInfo(community);
 
   const threadHasNoAncestors = community === threadInfo;
 
   const ancestorThreads = ancestorThreadsWithCommunity.slice(1);
 
   const chevronRight = React.useMemo(() => {
     if (threadHasNoAncestors) {
       return null;
     }
     return <ChevronRight size={20} className={css.chevronRight} />;
   }, [threadHasNoAncestors]);
 
   const { uiName } = useResolvedThreadInfo(threadInfo);
 
   const path = React.useMemo(() => {
     if (threadHasNoAncestors) {
       return null;
     }
     const ancestors = ancestorThreads.map(ancestor => (
       <ThreadAncestor threadInfo={ancestor} key={ancestor.id} />
     ));
     const chatNameClasses = classnames(css.ancestorName, css.chatName);
     return (
       <div className={css.ancestorThreadsContainer}>
         {ancestors}
         <div className={chatNameClasses}>{uiName}</div>
       </div>
     );
   }, [ancestorThreads, threadHasNoAncestors, uiName]);
 
   return (
     <div className={css.container}>
       <div className={css.communityName}>{resolvedCommunity.uiName}</div>
       {chevronRight}
       {path}
     </div>
   );
 }
 
 function ThreadAncestor(props: ThreadAncestorsProps): React.Node {
   const { uiName } = useResolvedThreadInfo(props.threadInfo);
   const chevronClasses = classnames(css.ancestorSeparator, css.chevronRight);
   return (
     <>
       <div className={css.ancestorName}>{uiName}</div>
       <ChevronRight size={12} className={chevronClasses} />
     </>
   );
 }
 
 export default ThreadAncestors;
diff --git a/web/navigation-panels/nav-state-info-bar.react.js b/web/navigation-panels/nav-state-info-bar.react.js
index 10709b3e7..9ddde92ae 100644
--- a/web/navigation-panels/nav-state-info-bar.react.js
+++ b/web/navigation-panels/nav-state-info-bar.react.js
@@ -1,67 +1,68 @@
 // @flow
 
 import classnames from 'classnames';
 import * as React from 'react';
 
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 
 import ThreadAncestors from './chat-thread-ancestors.react.js';
 import css from './nav-state-info-bar.css';
 import ThreadAvatar from '../avatars/thread-avatar.react.js';
 
 type NavStateInfoBarProps = {
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 function NavStateInfoBar(props: NavStateInfoBarProps): React.Node {
   const { threadInfo } = props;
 
   return (
     <>
       <div className={css.avatarContainer}>
         <ThreadAvatar size="S" threadInfo={threadInfo} />
       </div>
       <ThreadAncestors threadInfo={threadInfo} />
     </>
   );
 }
 
 type PossiblyEmptyNavStateInfoBarProps = {
-  +threadInfoInput: ?ThreadInfo,
+  +threadInfoInput: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 };
 function PossiblyEmptyNavStateInfoBar(
   props: PossiblyEmptyNavStateInfoBarProps,
 ): React.Node {
   const { threadInfoInput } = props;
 
   const [threadInfo, setThreadInfo] = React.useState(threadInfoInput);
 
   React.useEffect(() => {
     if (threadInfoInput !== threadInfo) {
       if (threadInfoInput) {
         setThreadInfo(threadInfoInput);
       } else {
         const timeout = setTimeout(() => {
           setThreadInfo(null);
         }, 200);
         return () => clearTimeout(timeout);
       }
     }
     return undefined;
   }, [threadInfoInput, threadInfo]);
 
   const content = React.useMemo(() => {
     if (threadInfo) {
       return <NavStateInfoBar threadInfo={threadInfo} />;
     } else {
       return null;
     }
   }, [threadInfo]);
 
   const classes = classnames(css.topBarContainer, {
     [css.hide]: !threadInfoInput,
     [css.show]: threadInfoInput,
   });
   return <div className={classes}>{content}</div>;
 }
 
 export default PossiblyEmptyNavStateInfoBar;
diff --git a/web/selectors/thread-selectors.js b/web/selectors/thread-selectors.js
index b42d718b7..5bd481a80 100644
--- a/web/selectors/thread-selectors.js
+++ b/web/selectors/thread-selectors.js
@@ -1,160 +1,160 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 import { useDispatch } from 'react-redux';
 import { createSelector } from 'reselect';
 
 import { ENSCacheContext } from 'lib/components/ens-cache-provider.react.js';
 import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
 import { useThreadChatMentionCandidates } from 'lib/hooks/chat-mention-hooks.js';
 import {
   createPendingSidebar,
   threadInHomeChatList,
 } from 'lib/shared/thread-utils.js';
 import type {
   ComposableMessageInfo,
   RobotextMessageInfo,
 } from 'lib/types/message-types.js';
 import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import type { ThreadInfo, RawThreadInfos } from 'lib/types/thread-types.js';
 import { values } from 'lib/utils/objects.js';
 
 import { getDefaultTextMessageRules } from '../markdown/rules.react.js';
 import { updateNavInfoActionType } from '../redux/action-types.js';
 import type { AppState } from '../redux/redux-setup.js';
 import { useSelector } from '../redux/redux-utils.js';
 
 function useOnClickThread(
   thread: ?ThreadInfo | ?MinimallyEncodedThreadInfo,
 ): (event: SyntheticEvent<HTMLElement>) => void {
   const dispatch = useDispatch();
   return React.useCallback(
     (event: SyntheticEvent<HTMLElement>) => {
       invariant(
         thread?.id,
         'useOnClickThread should be called with threadID set',
       );
       event.preventDefault();
       const { id: threadID } = thread;
 
       let payload;
       if (threadID.includes('pending')) {
         payload = {
           chatMode: 'view',
           activeChatThreadID: threadID,
           pendingThread: thread,
           tab: 'chat',
         };
       } else {
         payload = {
           chatMode: 'view',
           activeChatThreadID: threadID,
           tab: 'chat',
         };
       }
 
       dispatch({ type: updateNavInfoActionType, payload });
     },
     [dispatch, thread],
   );
 }
 
 function useThreadIsActive(threadID: string): boolean {
   return useSelector(state => threadID === state.navInfo.activeChatThreadID);
 }
 
 function useOnClickPendingSidebar(
   messageInfo: ComposableMessageInfo | RobotextMessageInfo,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): (event: SyntheticEvent<HTMLElement>) => mixed {
   const dispatch = useDispatch();
   const loggedInUserInfo = useLoggedInUserInfo();
 
   const cacheContext = React.useContext(ENSCacheContext);
   const { getENSNames } = cacheContext;
 
   const chatMentionCandidates = useThreadChatMentionCandidates(threadInfo);
   return React.useCallback(
     async (event: SyntheticEvent<HTMLElement>) => {
       event.preventDefault();
       if (!loggedInUserInfo) {
         return;
       }
       const pendingSidebarInfo = await createPendingSidebar({
         sourceMessageInfo: messageInfo,
         parentThreadInfo: threadInfo,
         loggedInUserInfo,
         markdownRules: getDefaultTextMessageRules(chatMentionCandidates)
           .simpleMarkdownRules,
         getENSNames,
       });
       dispatch({
         type: updateNavInfoActionType,
         payload: {
           activeChatThreadID: pendingSidebarInfo.id,
           pendingThread: pendingSidebarInfo,
         },
       });
     },
     [
       loggedInUserInfo,
       chatMentionCandidates,
       threadInfo,
       messageInfo,
       getENSNames,
       dispatch,
     ],
   );
 }
 
 function useOnClickNewThread(): (event: SyntheticEvent<HTMLElement>) => void {
   const dispatch = useDispatch();
   return React.useCallback(
     (event: SyntheticEvent<HTMLElement>) => {
       event.preventDefault();
       dispatch({
         type: updateNavInfoActionType,
         payload: {
           chatMode: 'create',
           selectedUserList: [],
         },
       });
     },
     [dispatch],
   );
 }
 
 function useDrawerSelectedThreadID(): ?string {
   const activeChatThreadID = useSelector(
     state => state.navInfo.activeChatThreadID,
   );
   const pickedCommunityID = useSelector(
     state => state.communityPickerStore.calendar,
   );
   const inCalendar = useSelector(state => state.navInfo.tab === 'calendar');
 
   return inCalendar ? pickedCommunityID : activeChatThreadID;
 }
 
 const unreadCountInSelectedCommunity: (state: AppState) => number =
   createSelector(
     (state: AppState) => state.threadStore.threadInfos,
     (state: AppState) => state.communityPickerStore.chat,
     (threadInfos: RawThreadInfos, communityID: ?string): number =>
       values(threadInfos).filter(
         threadInfo =>
           threadInHomeChatList(threadInfo) &&
           threadInfo.currentUser.unread &&
           (!communityID || communityID === threadInfo.community),
       ).length,
   );
 
 export {
   useOnClickThread,
   useThreadIsActive,
   useOnClickPendingSidebar,
   useOnClickNewThread,
   useDrawerSelectedThreadID,
   unreadCountInSelectedCommunity,
 };
diff --git a/web/utils/thread-utils.js b/web/utils/thread-utils.js
index 2d9cc3b95..9595d7401 100644
--- a/web/utils/thread-utils.js
+++ b/web/utils/thread-utils.js
@@ -1,110 +1,111 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
 import { threadInfoSelector } from 'lib/selectors/thread-selectors.js';
 import { userInfoSelectorForPotentialMembers } from 'lib/selectors/user-selectors.js';
 import {
   createPendingThread,
   useExistingThreadInfoFinder,
 } from 'lib/shared/thread-utils.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadTypes } from 'lib/types/thread-types-enum.js';
 import { type ThreadInfo } from 'lib/types/thread-types.js';
 import type { AccountUserInfo } from 'lib/types/user-types.js';
 
 import { useSelector } from '../redux/redux-utils.js';
 
 type InfosForPendingThread = {
   +isChatCreation: boolean,
   +selectedUserInfos: $ReadOnlyArray<AccountUserInfo>,
   +otherUserInfos: { [id: string]: AccountUserInfo },
 };
 
 function useInfosForPendingThread(): InfosForPendingThread {
   const isChatCreation = useSelector(
     state => state.navInfo.chatMode === 'create',
   );
   const selectedUserInfos = useSelector(
     state => state.navInfo.selectedUserList ?? [],
   );
   const otherUserInfos = useSelector(userInfoSelectorForPotentialMembers);
   return {
     isChatCreation,
     selectedUserInfos,
     otherUserInfos,
   };
 }
 
 function useThreadInfoForPossiblyPendingThread(
   activeChatThreadID: ?string,
-): ?ThreadInfo {
+): ?ThreadInfo | ?MinimallyEncodedThreadInfo {
   const { isChatCreation, selectedUserInfos } = useInfosForPendingThread();
 
   const loggedInUserInfo = useLoggedInUserInfo();
   invariant(loggedInUserInfo, 'loggedInUserInfo should be set');
 
   const pendingPrivateThread = React.useRef(
     createPendingThread({
       viewerID: loggedInUserInfo.id,
       threadType: threadTypes.PRIVATE,
       members: [loggedInUserInfo],
     }),
   );
 
   const newThreadID = 'pending/new_thread';
   const pendingNewThread = React.useMemo(
     () => ({
       ...createPendingThread({
         viewerID: loggedInUserInfo.id,
         threadType: threadTypes.PRIVATE,
         members: [loggedInUserInfo],
         name: 'New thread',
       }),
       id: newThreadID,
     }),
     [loggedInUserInfo],
   );
   const existingThreadInfoFinderForCreatingThread = useExistingThreadInfoFinder(
     pendingPrivateThread.current,
   );
 
   const baseThreadInfo = useSelector(state => {
     if (activeChatThreadID) {
       const activeThreadInfo = threadInfoSelector(state)[activeChatThreadID];
       if (activeThreadInfo) {
         return activeThreadInfo;
       }
     }
     return state.navInfo.pendingThread;
   });
   const existingThreadInfoFinder = useExistingThreadInfoFinder(baseThreadInfo);
   const threadInfo = React.useMemo(() => {
     if (isChatCreation) {
       if (selectedUserInfos.length === 0) {
         return pendingNewThread;
       }
 
       return existingThreadInfoFinderForCreatingThread({
         searching: true,
         userInfoInputArray: selectedUserInfos,
       });
     }
 
     return existingThreadInfoFinder({
       searching: false,
       userInfoInputArray: [],
     });
   }, [
     existingThreadInfoFinder,
     existingThreadInfoFinderForCreatingThread,
     isChatCreation,
     pendingNewThread,
     selectedUserInfos,
   ]);
 
   return threadInfo;
 }
 
 export { useThreadInfoForPossiblyPendingThread, useInfosForPendingThread };
diff --git a/web/utils/tooltip-action-utils.js b/web/utils/tooltip-action-utils.js
index 537de1a4e..c99f3504f 100644
--- a/web/utils/tooltip-action-utils.js
+++ b/web/utils/tooltip-action-utils.js
@@ -1,485 +1,486 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { useModalContext } from 'lib/components/modal-provider.react.js';
 import { useResettingState } from 'lib/hooks/use-resetting-state.js';
 import type {
   ReactionInfo,
   ChatMessageInfoItem,
 } from 'lib/selectors/chat-selectors.js';
 import { useCanEditMessage } from 'lib/shared/edit-messages-utils.js';
 import { createMessageReply } from 'lib/shared/message-utils.js';
 import { useCanCreateReactionFromMessage } from 'lib/shared/reaction-utils.js';
 import {
   threadHasPermission,
   useSidebarExistsOrCanBeCreated,
 } from 'lib/shared/thread-utils.js';
 import { messageTypes } from 'lib/types/message-types-enum.js';
+import type { MinimallyEncodedThreadInfo } from 'lib/types/minimally-encoded-thread-permissions-types.js';
 import { threadPermissions } from 'lib/types/thread-permission-types.js';
 import type { ThreadInfo } from 'lib/types/thread-types.js';
 import { longAbsoluteDate } from 'lib/utils/date-utils.js';
 import { canToggleMessagePin } from 'lib/utils/toggle-pin-utils.js';
 
 import {
   type MessageTooltipAction,
   getTooltipPositionStyle,
   calculateMessageTooltipSize,
   calculateReactionTooltipSize,
   type TooltipPosition,
   type TooltipPositionStyle,
   type TooltipSize,
 } from './tooltip-utils.js';
 import { getComposedMessageID } from '../chat/chat-constants.js';
 import { useEditModalContext } from '../chat/edit-message-provider.js';
 import MessageTooltip from '../chat/message-tooltip.react.js';
 import ReactionTooltip from '../chat/reaction-tooltip.react.js';
 import { useTooltipContext } from '../chat/tooltip-provider.js';
 import CommIcon from '../CommIcon.react.js';
 import { InputStateContext } from '../input/input-state.js';
 import TogglePinModal from '../modals/chat/toggle-pin-modal.react.js';
 import {
   useOnClickPendingSidebar,
   useOnClickThread,
 } from '../selectors/thread-selectors.js';
 
 type UseTooltipArgs = {
   +createTooltip: (tooltipPositionStyle: TooltipPositionStyle) => React.Node,
   +tooltipSize: TooltipSize,
   +availablePositions: $ReadOnlyArray<TooltipPosition>,
 };
 type UseTooltipResult = {
   +onMouseEnter: (event: SyntheticEvent<HTMLElement>) => mixed,
   +onMouseLeave: ?() => mixed,
 };
 
 function useTooltip({
   createTooltip,
   tooltipSize,
   availablePositions,
 }: UseTooltipArgs): UseTooltipResult {
   const [onMouseLeave, setOnMouseLeave] = React.useState<?() => mixed>(null);
   const [tooltipSourcePosition, setTooltipSourcePosition] = React.useState();
 
   const { renderTooltip } = useTooltipContext();
   const updateTooltip = React.useRef();
 
   const onMouseEnter = React.useCallback(
     (event: SyntheticEvent<HTMLElement>) => {
       if (!renderTooltip) {
         return;
       }
       const rect = event.currentTarget.getBoundingClientRect();
       const { top, bottom, left, right, height, width } = rect;
       const sourcePosition = { top, bottom, left, right, height, width };
       setTooltipSourcePosition(sourcePosition);
 
       const tooltipPositionStyle = getTooltipPositionStyle({
         tooltipSourcePosition: sourcePosition,
         tooltipSize,
         availablePositions,
       });
       if (!tooltipPositionStyle) {
         return;
       }
 
       const tooltip = createTooltip(tooltipPositionStyle);
 
       const renderTooltipResult = renderTooltip({
         newNode: tooltip,
         tooltipPositionStyle,
       });
       if (renderTooltipResult) {
         const { onMouseLeaveCallback: callback } = renderTooltipResult;
         setOnMouseLeave((() => callback: () => () => mixed));
         updateTooltip.current = renderTooltipResult.updateTooltip;
       }
     },
     [availablePositions, createTooltip, renderTooltip, tooltipSize],
   );
 
   React.useEffect(() => {
     if (!updateTooltip.current) {
       return;
     }
 
     const tooltipPositionStyle = getTooltipPositionStyle({
       tooltipSourcePosition,
       tooltipSize,
       availablePositions,
     });
     if (!tooltipPositionStyle) {
       return;
     }
 
     const tooltip = createTooltip(tooltipPositionStyle);
     updateTooltip.current?.(tooltip);
   }, [availablePositions, createTooltip, tooltipSize, tooltipSourcePosition]);
 
   return {
     onMouseEnter,
     onMouseLeave,
   };
 }
 
 function useMessageTooltipSidebarAction(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): ?MessageTooltipAction {
   const { threadCreatedFromMessage, messageInfo } = item;
   const { popModal } = useModalContext();
   const sidebarExists = !!threadCreatedFromMessage;
   const sidebarExistsOrCanBeCreated = useSidebarExistsOrCanBeCreated(
     threadInfo,
     item,
   );
   const openThread = useOnClickThread(threadCreatedFromMessage);
   const openPendingSidebar = useOnClickPendingSidebar(messageInfo, threadInfo);
   return React.useMemo(() => {
     if (!sidebarExistsOrCanBeCreated) {
       return null;
     }
     const buttonContent = <CommIcon icon="sidebar-filled" size={16} />;
     const onClick = (event: SyntheticEvent<HTMLElement>) => {
       popModal();
 
       if (threadCreatedFromMessage) {
         openThread(event);
       } else {
         openPendingSidebar(event);
       }
     };
     return {
       actionButtonContent: buttonContent,
       onClick,
       label: sidebarExists ? 'Go to thread' : 'Create thread',
     };
   }, [
     popModal,
     openPendingSidebar,
     openThread,
     sidebarExists,
     sidebarExistsOrCanBeCreated,
     threadCreatedFromMessage,
   ]);
 }
 
 function useMessageTooltipReplyAction(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): ?MessageTooltipAction {
   const { messageInfo } = item;
   const { popModal } = useModalContext();
   const inputState = React.useContext(InputStateContext);
   invariant(inputState, 'inputState is required');
   const { addReply } = inputState;
   return React.useMemo(() => {
     if (
       item.messageInfo.type !== messageTypes.TEXT ||
       !threadHasPermission(threadInfo, threadPermissions.VOICED)
     ) {
       return null;
     }
     const buttonContent = <CommIcon icon="reply-filled" size={18} />;
     const onClick = () => {
       popModal();
 
       if (!messageInfo.text) {
         return;
       }
       addReply(createMessageReply(messageInfo.text));
     };
     return {
       actionButtonContent: buttonContent,
       onClick,
       label: 'Reply',
     };
   }, [popModal, addReply, item.messageInfo.type, messageInfo, threadInfo]);
 }
 
 const copiedMessageDurationMs = 2000;
 function useMessageCopyAction(
   item: ChatMessageInfoItem,
 ): ?MessageTooltipAction {
   const { messageInfo } = item;
 
   const [successful, setSuccessful] = useResettingState(
     false,
     copiedMessageDurationMs,
   );
 
   return React.useMemo(() => {
     if (messageInfo.type !== messageTypes.TEXT) {
       return null;
     }
     const buttonContent = <CommIcon icon="copy-filled" size={18} />;
     const onClick = async () => {
       try {
         await navigator.clipboard.writeText(messageInfo.text);
         setSuccessful(true);
       } catch (e) {
         setSuccessful(false);
       }
     };
     return {
       actionButtonContent: buttonContent,
       onClick,
       label: successful ? 'Copied!' : 'Copy',
     };
   }, [messageInfo.text, messageInfo.type, setSuccessful, successful]);
 }
 
 function useMessageReactAction(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): ?MessageTooltipAction {
   const { messageInfo } = item;
 
   const { setShouldRenderEmojiKeyboard } = useTooltipContext();
 
   const canCreateReactionFromMessage = useCanCreateReactionFromMessage(
     threadInfo,
     messageInfo,
   );
 
   return React.useMemo(() => {
     if (!canCreateReactionFromMessage) {
       return null;
     }
 
     const buttonContent = <CommIcon icon="emote-smile-filled" size={18} />;
 
     const onClickReact = () => {
       if (!setShouldRenderEmojiKeyboard) {
         return;
       }
       setShouldRenderEmojiKeyboard(true);
     };
 
     return {
       actionButtonContent: buttonContent,
       onClick: onClickReact,
       label: 'React',
     };
   }, [canCreateReactionFromMessage, setShouldRenderEmojiKeyboard]);
 }
 
 function useMessageTogglePinAction(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): ?MessageTooltipAction {
   const { pushModal } = useModalContext();
   const { messageInfo, isPinned } = item;
 
   const canTogglePin = canToggleMessagePin(messageInfo, threadInfo);
 
   const inputState = React.useContext(InputStateContext);
 
   return React.useMemo(() => {
     if (!canTogglePin) {
       return null;
     }
 
     const iconName = isPinned ? 'unpin' : 'pin';
 
     const buttonContent = <CommIcon icon={iconName} size={18} />;
 
     const onClickTogglePin = () => {
       pushModal(
         <InputStateContext.Provider value={inputState}>
           <TogglePinModal item={item} threadInfo={threadInfo} />
         </InputStateContext.Provider>,
       );
     };
 
     return {
       actionButtonContent: buttonContent,
       onClick: onClickTogglePin,
       label: isPinned ? 'Unpin' : 'Pin',
     };
   }, [canTogglePin, inputState, isPinned, pushModal, item, threadInfo]);
 }
 
 function useMessageEditAction(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): ?MessageTooltipAction {
   const { messageInfo } = item;
 
   const canEditMessage = useCanEditMessage(threadInfo, messageInfo);
   const { renderEditModal, scrollToMessage } = useEditModalContext();
   const { clearTooltip } = useTooltipContext();
 
   return React.useMemo(() => {
     if (!canEditMessage) {
       return null;
     }
     const buttonContent = <CommIcon icon="edit-filled" size={18} />;
     const onClickEdit = () => {
       const callback = (maxHeight: number) =>
         renderEditModal({
           messageInfo: item,
           threadInfo,
           isError: false,
           editedMessageDraft: messageInfo.text,
           maxHeight: maxHeight,
         });
       clearTooltip();
       scrollToMessage(getComposedMessageID(messageInfo), callback);
     };
     return {
       actionButtonContent: buttonContent,
       onClick: onClickEdit,
       label: 'Edit',
     };
   }, [
     canEditMessage,
     clearTooltip,
     item,
     messageInfo,
     renderEditModal,
     scrollToMessage,
     threadInfo,
   ]);
 }
 
 function useMessageTooltipActions(
   item: ChatMessageInfoItem,
-  threadInfo: ThreadInfo,
+  threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 ): $ReadOnlyArray<MessageTooltipAction> {
   const sidebarAction = useMessageTooltipSidebarAction(item, threadInfo);
   const replyAction = useMessageTooltipReplyAction(item, threadInfo);
   const copyAction = useMessageCopyAction(item);
   const reactAction = useMessageReactAction(item, threadInfo);
   const togglePinAction = useMessageTogglePinAction(item, threadInfo);
   const editAction = useMessageEditAction(item, threadInfo);
   return React.useMemo(
     () =>
       [
         replyAction,
         sidebarAction,
         copyAction,
         reactAction,
         togglePinAction,
         editAction,
       ].filter(Boolean),
     [
       replyAction,
       sidebarAction,
       copyAction,
       reactAction,
       togglePinAction,
       editAction,
     ],
   );
 }
 
 const undefinedTooltipSize = {
   width: 0,
   height: 0,
 };
 
 type UseMessageTooltipArgs = {
   +availablePositions: $ReadOnlyArray<TooltipPosition>,
   +item: ChatMessageInfoItem,
-  +threadInfo: ThreadInfo,
+  +threadInfo: ThreadInfo | MinimallyEncodedThreadInfo,
 };
 
 function useMessageTooltip({
   availablePositions,
   item,
   threadInfo,
 }: UseMessageTooltipArgs): UseTooltipResult {
   const tooltipActions = useMessageTooltipActions(item, threadInfo);
 
   const messageTimestamp = React.useMemo(() => {
     const time = item.messageInfo.time;
     return longAbsoluteDate(time);
   }, [item.messageInfo.time]);
 
   const tooltipSize = React.useMemo(() => {
     if (typeof document === 'undefined') {
       return undefinedTooltipSize;
     }
     const tooltipLabels = tooltipActions.map(action => action.label);
     return calculateMessageTooltipSize({
       tooltipLabels,
       timestamp: messageTimestamp,
     });
   }, [messageTimestamp, tooltipActions]);
 
   const createMessageTooltip = React.useCallback(
     tooltipPositionStyle => (
       <MessageTooltip
         actions={tooltipActions}
         messageTimestamp={messageTimestamp}
         tooltipPositionStyle={tooltipPositionStyle}
         tooltipSize={tooltipSize}
         item={item}
         threadInfo={threadInfo}
       />
     ),
     [item, messageTimestamp, threadInfo, tooltipActions, tooltipSize],
   );
 
   const { onMouseEnter, onMouseLeave } = useTooltip({
     createTooltip: createMessageTooltip,
     tooltipSize,
     availablePositions,
   });
 
   return {
     onMouseEnter,
     onMouseLeave,
   };
 }
 
 type UseReactionTooltipArgs = {
   +reaction: string,
   +reactions: ReactionInfo,
   +availablePositions: $ReadOnlyArray<TooltipPosition>,
 };
 
 function useReactionTooltip({
   reaction,
   reactions,
   availablePositions,
 }: UseReactionTooltipArgs): UseTooltipResult {
   const { users } = reactions[reaction];
 
   const tooltipSize = React.useMemo(() => {
     if (typeof document === 'undefined') {
       return undefinedTooltipSize;
     }
 
     const usernames = users.map(user => user.username).filter(Boolean);
 
     return calculateReactionTooltipSize(usernames);
   }, [users]);
 
   const createReactionTooltip = React.useCallback(
     () => <ReactionTooltip reactions={reactions} reaction={reaction} />,
     [reaction, reactions],
   );
 
   const { onMouseEnter, onMouseLeave } = useTooltip({
     createTooltip: createReactionTooltip,
     tooltipSize,
     availablePositions,
   });
 
   return {
     onMouseEnter,
     onMouseLeave,
   };
 }
 
 export {
   useMessageTooltipSidebarAction,
   useMessageTooltipReplyAction,
   useMessageReactAction,
   useMessageTooltipActions,
   useMessageTooltip,
   useReactionTooltip,
 };