diff --git a/lib/reducers/master-reducer.js b/lib/reducers/master-reducer.js
index 7eed71e14..ba20f58b0 100644
--- a/lib/reducers/master-reducer.js
+++ b/lib/reducers/master-reducer.js
@@ -1,241 +1,246 @@
 // @flow
 
 import { reduceAlertStore } from './alert-reducer.js';
 import { reduceAuxUserStore } from './aux-user-reducer.js';
 import reduceCalendarFilters from './calendar-filters-reducer.js';
 import { reduceCommunityStore } from './community-reducer.js';
 import reduceCustomerServer from './custom-server-reducer.js';
 import reduceDataLoaded from './data-loaded-reducer.js';
 import { reduceDBOpsStore } from './db-ops-reducer.js';
 import { reduceDraftStore } from './draft-reducer.js';
 import reduceEnabledApps from './enabled-apps-reducer.js';
 import { reduceEntryInfos } from './entry-reducer.js';
 import { reduceIntegrityStore } from './integrity-reducer.js';
 import reduceInviteLinks from './invite-links-reducer.js';
 import reduceKeyserverStore from './keyserver-reducer.js';
 import reduceLifecycleState from './lifecycle-state-reducer.js';
 import { reduceLoadingStatuses } from './loading-reducer.js';
 import { reduceMessageStore } from './message-reducer.js';
 import reduceBaseNavInfo from './nav-reducer.js';
 import policiesReducer from './policies-reducer.js';
 import reduceReportStore from './report-store-reducer.js';
 import { reduceSyncedMetadataStore } from './synced-metadata-reducer.js';
 import reduceGlobalThemeInfo from './theme-reducer.js';
 import { reduceThreadActivity } from './thread-activity-reducer.js';
 import { reduceThreadInfos } from './thread-reducer.js';
 import { reduceCurrentUserInfo, reduceUserInfos } from './user-reducer.js';
 import { addKeyserverActionType } from '../actions/keyserver-actions.js';
 import { legacySiweAuthActionTypes } from '../actions/siwe-actions.js';
 import { fetchPendingUpdatesActionTypes } from '../actions/update-actions.js';
 import {
   legacyKeyserverRegisterActionTypes,
   legacyLogInActionTypes,
   keyserverAuthActionTypes,
 } from '../actions/user-actions.js';
 import {
   keyserverStoreOpsHandlers,
   type ReplaceKeyserverOperation,
 } from '../ops/keyserver-store-ops.js';
 import { isStaff } from '../shared/staff-utils.js';
 import type { BaseNavInfo } from '../types/nav-types.js';
 import type { BaseAppState, BaseAction } from '../types/redux-types.js';
 import {
   fullStateSyncActionType,
   incrementalStateSyncActionType,
 } from '../types/socket-types.js';
 import type { StoreOperations } from '../types/store-ops-types.js';
 import { isDev } from '../utils/dev-utils.js';
 
 export default function baseReducer<N: BaseNavInfo, T: BaseAppState<N>>(
   state: T,
   action: BaseAction,
   onStateDifference: (message: string) => mixed,
 ): { state: T, storeOperations: StoreOperations } {
   const { threadStore, newThreadInconsistencies, threadStoreOperations } =
     reduceThreadInfos(state.threadStore, action);
   const { threadInfos } = threadStore;
 
   const {
     entryStore,
     reportCreationRequests: newEntryInconsistencies,
     entryStoreOperations,
   } = reduceEntryInfos(
     state.entryStore,
     action,
     threadInfos,
     onStateDifference,
   );
 
   const onStateDifferenceForStaff = (message: string) => {
     const isCurrentUserStaff = state.currentUserInfo?.id
       ? isStaff(state.currentUserInfo.id)
       : false;
     if (isCurrentUserStaff || isDev) {
       onStateDifference(message);
     }
   };
 
   const [userStore, newUserInconsistencies, userStoreOperations] =
     reduceUserInfos(state.userStore, action);
 
   const newInconsistencies = [
     ...newEntryInconsistencies,
     ...newThreadInconsistencies,
     ...newUserInconsistencies,
   ];
   // Only allow checkpoints to increase if we are connected
   // or if the action is a STATE_SYNC
   const { messageStoreOperations, messageStore: reducedMessageStore } =
-    reduceMessageStore(state.messageStore, action, threadInfos);
+    reduceMessageStore(
+      state.messageStore,
+      action,
+      threadInfos,
+      onStateDifferenceForStaff,
+    );
   let messageStore = reducedMessageStore;
 
   let { keyserverStore, keyserverStoreOperations } = reduceKeyserverStore(
     state.keyserverStore,
     action,
     onStateDifferenceForStaff,
   );
 
   if (
     action.type !== incrementalStateSyncActionType &&
     action.type !== fullStateSyncActionType &&
     action.type !== fetchPendingUpdatesActionTypes.success &&
     action.type !== legacyKeyserverRegisterActionTypes.success &&
     action.type !== legacyLogInActionTypes.success &&
     action.type !== legacySiweAuthActionTypes.success &&
     action.type !== keyserverAuthActionTypes.success &&
     action.type !== addKeyserverActionType
   ) {
     const replaceOperations: ReplaceKeyserverOperation[] = [];
     for (const keyserverID in keyserverStore.keyserverInfos) {
       if (
         keyserverStore.keyserverInfos[keyserverID].connection.status ===
         'connected'
       ) {
         continue;
       }
       if (
         messageStore.currentAsOf[keyserverID] !==
         state.messageStore.currentAsOf[keyserverID]
       ) {
         messageStore = {
           ...messageStore,
           currentAsOf: {
             ...messageStore.currentAsOf,
             [keyserverID]: state.messageStore.currentAsOf[keyserverID],
           },
         };
       }
       if (
         state.keyserverStore.keyserverInfos[keyserverID] &&
         keyserverStore.keyserverInfos[keyserverID].updatesCurrentAsOf !==
           state.keyserverStore.keyserverInfos[keyserverID].updatesCurrentAsOf
       ) {
         replaceOperations.push({
           type: 'replace_keyserver',
           payload: {
             id: keyserverID,
             keyserverInfo: {
               ...keyserverStore.keyserverInfos[keyserverID],
               updatesCurrentAsOf:
                 state.keyserverStore.keyserverInfos[keyserverID]
                   .updatesCurrentAsOf,
             },
           },
         });
       }
     }
 
     keyserverStore = keyserverStoreOpsHandlers.processStoreOperations(
       keyserverStore,
       replaceOperations,
     );
     keyserverStoreOperations = [
       ...keyserverStoreOperations,
       ...replaceOperations,
     ];
   }
 
   const { draftStore, draftStoreOperations } = reduceDraftStore(
     state.draftStore,
     action,
   );
 
   const { reportStore, reportStoreOperations } = reduceReportStore(
     state.reportStore,
     action,
     newInconsistencies,
   );
 
   const { communityStore, communityStoreOperations } = reduceCommunityStore(
     state.communityStore,
     action,
   );
 
   const { integrityStore, integrityStoreOperations } = reduceIntegrityStore(
     state.integrityStore,
     action,
     onStateDifferenceForStaff,
     threadInfos,
     threadStoreOperations,
   );
 
   const { syncedMetadataStore, syncedMetadataStoreOperations } =
     reduceSyncedMetadataStore(state.syncedMetadataStore, action);
 
   const { auxUserStore, auxUserStoreOperations } = reduceAuxUserStore(
     state.auxUserStore,
     action,
   );
 
   const { threadActivityStore, threadActivityStoreOperations } =
     reduceThreadActivity(state.threadActivityStore, action);
 
   return {
     state: {
       ...state,
       navInfo: reduceBaseNavInfo(state.navInfo, action),
       draftStore,
       entryStore,
       loadingStatuses: reduceLoadingStatuses(state.loadingStatuses, action),
       currentUserInfo: reduceCurrentUserInfo(state.currentUserInfo, action),
       threadStore,
       userStore,
       messageStore,
       calendarFilters: reduceCalendarFilters(
         state.calendarFilters,
         action,
         threadStore,
       ),
       alertStore: reduceAlertStore(state.alertStore, action),
       lifecycleState: reduceLifecycleState(state.lifecycleState, action),
       enabledApps: reduceEnabledApps(state.enabledApps, action),
       reportStore,
       dataLoaded: reduceDataLoaded(state.dataLoaded, action),
       userPolicies: policiesReducer(state.userPolicies, action),
       inviteLinksStore: reduceInviteLinks(state.inviteLinksStore, action),
       keyserverStore,
       integrityStore,
       globalThemeInfo: reduceGlobalThemeInfo(state.globalThemeInfo, action),
       customServer: reduceCustomerServer(state.customServer, action),
       communityStore,
       dbOpsStore: reduceDBOpsStore(state.dbOpsStore, action),
       syncedMetadataStore,
       auxUserStore,
       threadActivityStore,
     },
     storeOperations: {
       draftStoreOperations,
       threadStoreOperations,
       messageStoreOperations,
       reportStoreOperations,
       userStoreOperations,
       keyserverStoreOperations,
       communityStoreOperations,
       integrityStoreOperations,
       syncedMetadataStoreOperations,
       auxUserStoreOperations,
       threadActivityStoreOperations,
       entryStoreOperations,
     },
   };
 }
diff --git a/lib/reducers/message-reducer.js b/lib/reducers/message-reducer.js
index 673686e7d..d2f618f71 100644
--- a/lib/reducers/message-reducer.js
+++ b/lib/reducers/message-reducer.js
@@ -1,1813 +1,1854 @@
 // @flow
 
 import invariant from 'invariant';
 import _difference from 'lodash/fp/difference.js';
 import _flow from 'lodash/fp/flow.js';
 import _isEqual from 'lodash/fp/isEqual.js';
 import _keyBy from 'lodash/fp/keyBy.js';
 import _map from 'lodash/fp/map.js';
 import _mapKeys from 'lodash/fp/mapKeys.js';
 import _mapValues from 'lodash/fp/mapValues.js';
 import _omit from 'lodash/fp/omit.js';
 import _omitBy from 'lodash/fp/omitBy.js';
 import _pick from 'lodash/fp/pick.js';
 import _pickBy from 'lodash/fp/pickBy.js';
 import _uniq from 'lodash/fp/uniq.js';
 
 import { setClientDBStoreActionType } from '../actions/client-db-store-actions.js';
 import {
   createEntryActionTypes,
   saveEntryActionTypes,
   deleteEntryActionTypes,
   restoreEntryActionTypes,
 } from '../actions/entry-actions.js';
 import {
   toggleMessagePinActionTypes,
   fetchMessagesBeforeCursorActionTypes,
   fetchMostRecentMessagesActionTypes,
   sendTextMessageActionTypes,
   sendMultimediaMessageActionTypes,
   sendReactionMessageActionTypes,
   sendEditMessageActionTypes,
   saveMessagesActionType,
   processMessagesActionType,
   messageStorePruneActionType,
   createLocalMessageActionType,
   fetchSingleMostRecentMessagesFromThreadsActionTypes,
 } from '../actions/message-actions.js';
 import { sendMessageReportActionTypes } from '../actions/message-report-actions.js';
 import { legacySiweAuthActionTypes } from '../actions/siwe-actions.js';
 import {
   changeThreadSettingsActionTypes,
   deleteThreadActionTypes,
   leaveThreadActionTypes,
   newThreadActionTypes,
   removeUsersFromThreadActionTypes,
   changeThreadMemberRolesActionTypes,
   joinThreadActionTypes,
 } from '../actions/thread-actions.js';
 import { fetchPendingUpdatesActionTypes } from '../actions/update-actions.js';
 import { updateMultimediaMessageMediaActionType } from '../actions/upload-actions.js';
 import {
   keyserverAuthActionTypes,
   deleteKeyserverAccountActionTypes,
   legacyLogInActionTypes,
   legacyKeyserverRegisterActionTypes,
 } from '../actions/user-actions.js';
 import { setNewSessionActionType } from '../keyserver-conn/keyserver-conn-types.js';
 import {
   messageStoreOpsHandlers,
   type MessageStoreOperation,
   type ReplaceMessageOperation,
 } from '../ops/message-store-ops.js';
 import { pendingToRealizedThreadIDsSelector } from '../selectors/thread-selectors.js';
 import {
   messageID,
   sortMessageInfoList,
   sortMessageIDs,
   mergeThreadMessageInfos,
   findNewestMessageTimePerKeyserver,
   localIDPrefix,
 } from '../shared/message-utils.js';
 import {
   threadHasPermission,
   threadInChatList,
   threadIsPending,
 } from '../shared/thread-utils.js';
 import threadWatcher from '../shared/thread-watcher.js';
 import { unshimMessageInfos } from '../shared/unshim-utils.js';
 import { updateSpecs } from '../shared/updates/update-specs.js';
 import { recoveryFromReduxActionSources } from '../types/account-types.js';
 import type { Media, Image } from '../types/media-types.js';
 import { messageTypes } from '../types/message-types-enum.js';
 import {
   type RawMessageInfo,
   type LocalMessageInfo,
   type MessageStore,
   type MessageTruncationStatus,
   type MessageTruncationStatuses,
   messageTruncationStatus,
   defaultNumberPerThread,
   type ThreadMessageInfo,
 } from '../types/message-types.js';
 import type { RawImagesMessageInfo } from '../types/messages/images.js';
 import type { RawMediaMessageInfo } from '../types/messages/media.js';
 import type { RawThreadInfo } from '../types/minimally-encoded-thread-permissions-types.js';
 import { type BaseAction } from '../types/redux-types.js';
 import { processServerRequestsActionType } from '../types/request-types.js';
 import {
   fullStateSyncActionType,
   incrementalStateSyncActionType,
   stateSyncPayloadTypes,
 } from '../types/socket-types.js';
 import { threadPermissions } from '../types/thread-permission-types.js';
 import type {
   LegacyRawThreadInfo,
   RawThreadInfos,
   MixedRawThreadInfos,
 } from '../types/thread-types.js';
 import {
   type ClientUpdateInfo,
   processUpdatesActionType,
 } from '../types/update-types.js';
+import { getMessageForException } from '../utils/errors.js';
 import { translateClientDBThreadMessageInfos } from '../utils/message-ops-utils.js';
+import { assertObjectsAreEqual } from '../utils/objects.js';
 
 const _mapValuesWithKeys = _mapValues.convert({ cap: false });
 
 // Input must already be ordered!
 function mapThreadsToMessageIDsFromOrderedMessageInfos(
   orderedMessageInfos: $ReadOnlyArray<RawMessageInfo>,
 ): { [threadID: string]: string[] } {
   const threadsToMessageIDs: { [threadID: string]: string[] } = {};
   for (const messageInfo of orderedMessageInfos) {
     const key = messageID(messageInfo);
     if (!threadsToMessageIDs[messageInfo.threadID]) {
       threadsToMessageIDs[messageInfo.threadID] = [key];
     } else {
       threadsToMessageIDs[messageInfo.threadID].push(key);
     }
   }
   return threadsToMessageIDs;
 }
 
 function isThreadWatched(
   threadID: string,
   threadInfo: ?LegacyRawThreadInfo | ?RawThreadInfo,
   watchedIDs: $ReadOnlyArray<string>,
 ) {
   return (
     threadIsPending(threadID) ||
     (threadInfo &&
       threadHasPermission(threadInfo, threadPermissions.VISIBLE) &&
       (threadInChatList(threadInfo) || watchedIDs.includes(threadID)))
   );
 }
 
+function assertMessageStoreLocalMessageInfosAreEqual(
+  processedMessageStore: MessageStore,
+  expectedMessageStore: MessageStore,
+  location: string,
+  onStateDifference?: (message: string) => mixed,
+) {
+  try {
+    assertObjectsAreEqual(
+      processedMessageStore.local,
+      expectedMessageStore.local,
+      `MessageStore.local - ${location}`,
+    );
+  } catch (e) {
+    console.log(
+      'Error processing MessageStore local ops',
+      processedMessageStore.local,
+      expectedMessageStore.local,
+    );
+    const message = `Error processing MessageStore local ops ${
+      getMessageForException(e) ?? '{no exception message}'
+    }`;
+    onStateDifference?.(message);
+  }
+}
+
 const newThread = (): ThreadMessageInfo => ({
   messageIDs: [],
   startReached: false,
 });
 
 type FreshMessageStoreResult = {
   +messageStoreOperations: $ReadOnlyArray<MessageStoreOperation>,
   +messageStore: MessageStore,
 };
 function freshMessageStore(
   messageInfos: $ReadOnlyArray<RawMessageInfo>,
   truncationStatus: { [threadID: string]: MessageTruncationStatus },
   currentAsOf: { +[keyserverID: string]: number },
   threadInfos: MixedRawThreadInfos,
 ): FreshMessageStoreResult {
   const unshimmed = unshimMessageInfos(messageInfos);
   const orderedMessageInfos = sortMessageInfoList(unshimmed);
   const messages = _keyBy(messageID)(orderedMessageInfos);
 
   const messageStoreReplaceOperations = orderedMessageInfos.map(
     messageInfo => ({
       type: 'replace',
       payload: { id: messageID(messageInfo), messageInfo },
     }),
   );
 
   const threadsToMessageIDs =
     mapThreadsToMessageIDsFromOrderedMessageInfos(orderedMessageInfos);
   const threads = _mapValuesWithKeys(
     (messageIDs: string[], threadID: string) => ({
       ...newThread(),
       messageIDs,
       startReached:
         truncationStatus[threadID] === messageTruncationStatus.EXHAUSTIVE,
     }),
   )(threadsToMessageIDs);
   const watchedIDs = threadWatcher.getWatchedIDs();
   for (const threadID in threadInfos) {
     const threadInfo = threadInfos[threadID];
     if (
       threads[threadID] ||
       !isThreadWatched(threadID, threadInfo, watchedIDs)
     ) {
       continue;
     }
     threads[threadID] = newThread();
   }
 
   const messageStoreOperations = [
     { type: 'remove_all' },
     {
       type: 'remove_all_threads',
     },
     {
       type: 'remove_all_local_message_infos',
     },
     {
       type: 'replace_threads',
       payload: { threads },
     },
     ...messageStoreReplaceOperations,
   ];
 
   return {
     messageStoreOperations,
     messageStore: {
       messages,
       threads,
       local: {},
       currentAsOf,
     },
   };
 }
 
 type ReassignmentResult = {
   +messageStoreOperations: MessageStoreOperation[],
   +messageStore: MessageStore,
   +reassignedThreadIDs: string[],
 };
 
 function reassignMessagesToRealizedThreads(
   messageStore: MessageStore,
   threadInfos: RawThreadInfos,
 ): ReassignmentResult {
   const pendingToRealizedThreadIDs =
     pendingToRealizedThreadIDsSelector(threadInfos);
 
   const messageStoreOperations: MessageStoreOperation[] = [];
   const messages: { [string]: RawMessageInfo } = {};
   for (const storeMessageID in messageStore.messages) {
     const message = messageStore.messages[storeMessageID];
     const newThreadID = pendingToRealizedThreadIDs.get(message.threadID);
 
     messages[storeMessageID] = newThreadID
       ? {
           ...message,
           threadID: newThreadID,
           time: threadInfos[newThreadID]?.creationTime ?? message.time,
         }
       : message;
 
     if (!newThreadID) {
       continue;
     }
 
     const updateMsgOperation: ReplaceMessageOperation = {
       type: 'replace',
       payload: { id: storeMessageID, messageInfo: messages[storeMessageID] },
     };
 
     messageStoreOperations.push(updateMsgOperation);
   }
 
   const threads: { [string]: ThreadMessageInfo } = {};
   const reassignedThreadIDs = [];
   const updatedThreads: { [string]: ThreadMessageInfo } = {};
   const threadsToRemove = [];
   for (const threadID in messageStore.threads) {
     const threadMessageInfo = messageStore.threads[threadID];
     const newThreadID = pendingToRealizedThreadIDs.get(threadID);
     if (!newThreadID) {
       threads[threadID] = threadMessageInfo;
       continue;
     }
     const realizedThread = messageStore.threads[newThreadID];
     if (!realizedThread) {
       reassignedThreadIDs.push(newThreadID);
       threads[newThreadID] = threadMessageInfo;
       updatedThreads[newThreadID] = threadMessageInfo;
       threadsToRemove.push(threadID);
       continue;
     }
     threads[newThreadID] = mergeThreadMessageInfos(
       threadMessageInfo,
       realizedThread,
       messages,
     );
     updatedThreads[newThreadID] = threads[newThreadID];
   }
   if (threadsToRemove.length) {
     messageStoreOperations.push({
       type: 'remove_threads',
       payload: {
         ids: threadsToRemove,
       },
     });
   }
   messageStoreOperations.push({
     type: 'replace_threads',
     payload: {
       threads: updatedThreads,
     },
   });
 
   return {
     messageStoreOperations,
     messageStore: {
       ...messageStore,
       threads,
       messages,
     },
     reassignedThreadIDs,
   };
 }
 
 type MergeNewMessagesResult = {
   +messageStoreOperations: $ReadOnlyArray<MessageStoreOperation>,
   +messageStore: MessageStore,
 };
 // oldMessageStore is from the old state
 // newMessageInfos, truncationStatus come from server
 function mergeNewMessages(
   oldMessageStore: MessageStore,
   newMessageInfos: $ReadOnlyArray<RawMessageInfo>,
   truncationStatus: { +[threadID: string]: MessageTruncationStatus },
   threadInfos: RawThreadInfos,
 ): MergeNewMessagesResult {
   const {
     messageStoreOperations: updateWithLatestThreadInfosOps,
     messageStore: messageStoreUpdatedWithLatestThreadInfos,
     reassignedThreadIDs,
   } = updateMessageStoreWithLatestThreadInfos(oldMessageStore, threadInfos);
 
   const messageStoreAfterUpdateOps = processMessageStoreOperations(
     oldMessageStore,
     updateWithLatestThreadInfosOps,
   );
 
   const updatedMessageStore = {
     ...messageStoreUpdatedWithLatestThreadInfos,
     messages: messageStoreAfterUpdateOps.messages,
     threads: messageStoreAfterUpdateOps.threads,
     local: messageStoreAfterUpdateOps.local,
   };
 
   const localIDsToServerIDs: Map<string, string> = new Map();
 
   const watchedThreadIDs = [
     ...threadWatcher.getWatchedIDs(),
     ...reassignedThreadIDs,
   ];
   const unshimmedNewMessages = unshimMessageInfos(newMessageInfos);
   const unshimmedNewMessagesOfWatchedThreads = unshimmedNewMessages.filter(
     msg =>
       isThreadWatched(
         msg.threadID,
         threadInfos[msg.threadID],
         watchedThreadIDs,
       ),
   );
   const orderedNewMessageInfos = _flow(
     _map((messageInfo: RawMessageInfo) => {
       const { id: inputID } = messageInfo;
       invariant(inputID, 'new messageInfos should have serverID');
       invariant(
         !threadIsPending(messageInfo.threadID),
         'new messageInfos should have realized thread id',
       );
       const currentMessageInfo = updatedMessageStore.messages[inputID];
       if (
         messageInfo.type === messageTypes.TEXT ||
         messageInfo.type === messageTypes.IMAGES ||
         messageInfo.type === messageTypes.MULTIMEDIA
       ) {
         const { localID: inputLocalID } = messageInfo;
         const currentLocalMessageInfo = inputLocalID
           ? updatedMessageStore.messages[inputLocalID]
           : null;
         if (currentMessageInfo && currentMessageInfo.localID) {
           // If the client already has a RawMessageInfo with this serverID, keep
           // any localID associated with the existing one. This is because we
           // use localIDs as React keys and changing React keys leads to loss of
           // component state. (The conditional below is for Flow)
           if (messageInfo.type === messageTypes.TEXT) {
             messageInfo = {
               ...messageInfo,
               localID: currentMessageInfo.localID,
             };
           } else if (messageInfo.type === messageTypes.MULTIMEDIA) {
             messageInfo = ({
               ...messageInfo,
               localID: currentMessageInfo.localID,
             }: RawMediaMessageInfo);
           } else {
             messageInfo = ({
               ...messageInfo,
               localID: currentMessageInfo.localID,
             }: RawImagesMessageInfo);
           }
         } else if (currentLocalMessageInfo && currentLocalMessageInfo.localID) {
           // If the client has a RawMessageInfo with this localID, but not with
           // the serverID, that means the message creation succeeded but the
           // success action never got processed. We set a key in
           // localIDsToServerIDs here to fix the messageIDs for the rest of the
           // MessageStore too. (The conditional below is for Flow)
           invariant(inputLocalID, 'inputLocalID should be set');
           localIDsToServerIDs.set(inputLocalID, inputID);
           if (messageInfo.type === messageTypes.TEXT) {
             messageInfo = {
               ...messageInfo,
               localID: currentLocalMessageInfo.localID,
             };
           } else if (messageInfo.type === messageTypes.MULTIMEDIA) {
             messageInfo = ({
               ...messageInfo,
               localID: currentLocalMessageInfo.localID,
             }: RawMediaMessageInfo);
           } else {
             messageInfo = ({
               ...messageInfo,
               localID: currentLocalMessageInfo.localID,
             }: RawImagesMessageInfo);
           }
         } else {
           // If neither the serverID nor the localID from the delivered
           // RawMessageInfo exists in the client store, then this message is
           // brand new to us. Ignore any localID provided by the server.
           // (The conditional below is for Flow)
           const { localID, ...rest } = messageInfo;
           if (rest.type === messageTypes.TEXT) {
             messageInfo = { ...rest };
           } else if (rest.type === messageTypes.MULTIMEDIA) {
             messageInfo = ({ ...rest }: RawMediaMessageInfo);
           } else {
             messageInfo = ({ ...rest }: RawImagesMessageInfo);
           }
         }
       } else if (
         currentMessageInfo &&
         messageInfo.time > currentMessageInfo.time
       ) {
         // When thick threads will be introduced it will be possible for two
         // clients to create the same message (e.g. when they create the same
         // sidebar at the same time). We're going to use deterministic ids for
         // messages which should be unique within a thread and we have to find
         // a way for clients to agree which message to keep. We can't rely on
         // always choosing incoming messages nor messages from the store,
         // because a message that is in one user's store, will be send to
         // another user. One way to deal with it is to always choose a message
         // which is older, according to its timestamp. We can use this strategy
         // only for messages that can start a thread, because for other types
         // it might break the "contiguous" property of message ids (we can
         // consider selecting younger messages in that case, but for now we use
         // an invariant).
         invariant(
           messageInfo.type === messageTypes.CREATE_SIDEBAR ||
             messageInfo.type === messageTypes.CREATE_THREAD ||
             messageInfo.type === messageTypes.SIDEBAR_SOURCE,
           `Two different messages of type ${messageInfo.type} with the same ` +
             'id found',
         );
         return currentMessageInfo;
       }
       return _isEqual(messageInfo)(currentMessageInfo)
         ? currentMessageInfo
         : messageInfo;
     }),
     sortMessageInfoList,
   )(unshimmedNewMessagesOfWatchedThreads);
 
   const newMessageOps: MessageStoreOperation[] = [];
   const threadsToMessageIDs = mapThreadsToMessageIDsFromOrderedMessageInfos(
     orderedNewMessageInfos,
   );
   const oldMessageInfosToCombine = [];
   const threadsThatNeedMessageIDsResorted = [];
   const updatedThreads: { [string]: ThreadMessageInfo } = {};
   const threads = _flow(
     _mapValuesWithKeys((messageIDs: string[], threadID: string) => {
       const oldThread = updatedMessageStore.threads[threadID];
       const truncate = truncationStatus[threadID];
       if (!oldThread) {
         updatedThreads[threadID] = {
           ...newThread(),
           messageIDs,
           startReached: truncate === messageTruncationStatus.EXHAUSTIVE,
         };
         return updatedThreads[threadID];
       }
       let oldMessageIDsUnchanged = true;
       const oldMessageIDs = oldThread.messageIDs.map(oldID => {
         const newID = localIDsToServerIDs.get(oldID);
         if (newID !== null && newID !== undefined) {
           oldMessageIDsUnchanged = false;
           return newID;
         }
         return oldID;
       });
       if (truncate === messageTruncationStatus.TRUNCATED) {
         // If the result set in the payload isn't contiguous with what we have
         // now, that means we need to dump what we have in the state and replace
         // it with the result set. We do this to achieve our two goals for the
         // messageStore: currentness and contiguousness.
         newMessageOps.push({
           type: 'remove_messages_for_threads',
           payload: { threadIDs: [threadID] },
         });
         updatedThreads[threadID] = {
           messageIDs,
           startReached: false,
         };
         return updatedThreads[threadID];
       }
       const oldNotInNew = _difference(oldMessageIDs)(messageIDs);
       for (const id of oldNotInNew) {
         const oldMessageInfo = updatedMessageStore.messages[id];
         invariant(oldMessageInfo, `could not find ${id} in messageStore`);
         oldMessageInfosToCombine.push(oldMessageInfo);
         const localInfo = updatedMessageStore.local[id];
         if (localInfo) {
           newMessageOps.push({
             type: 'replace_local_message_info',
             payload: {
               id,
               localMessageInfo: localInfo,
             },
           });
         }
       }
       const startReached =
         oldThread.startReached ||
         truncate === messageTruncationStatus.EXHAUSTIVE;
       if (_difference(messageIDs)(oldMessageIDs).length === 0) {
         if (startReached === oldThread.startReached && oldMessageIDsUnchanged) {
           return oldThread;
         }
         updatedThreads[threadID] = {
           messageIDs: oldMessageIDs,
           startReached,
         };
         return updatedThreads[threadID];
       }
       const mergedMessageIDs = [...messageIDs, ...oldNotInNew];
       threadsThatNeedMessageIDsResorted.push(threadID);
       return {
         messageIDs: mergedMessageIDs,
         startReached,
       };
     }),
     _pickBy(thread => !!thread),
   )(threadsToMessageIDs);
 
   for (const threadID in updatedMessageStore.threads) {
     if (threads[threadID]) {
       continue;
     }
     let thread = updatedMessageStore.threads[threadID];
     const truncate = truncationStatus[threadID];
     if (truncate === messageTruncationStatus.EXHAUSTIVE) {
       thread = {
         ...thread,
         startReached: true,
       };
     }
     threads[threadID] = thread;
     updatedThreads[threadID] = thread;
 
     for (const id of thread.messageIDs) {
       const messageInfo = updatedMessageStore.messages[id];
       if (messageInfo) {
         oldMessageInfosToCombine.push(messageInfo);
       }
       const localInfo = updatedMessageStore.local[id];
       if (localInfo) {
         newMessageOps.push({
           type: 'replace_local_message_info',
           payload: {
             id,
             localMessageInfo: localInfo,
           },
         });
       }
     }
   }
 
   const messages = _flow(
     sortMessageInfoList,
     _keyBy(messageID),
   )([...orderedNewMessageInfos, ...oldMessageInfosToCombine]);
 
   const newMessages = _keyBy(messageID)(orderedNewMessageInfos);
   for (const id in newMessages) {
     newMessageOps.push({
       type: 'replace',
       payload: { id, messageInfo: newMessages[id] },
     });
   }
 
   if (localIDsToServerIDs.size > 0) {
     newMessageOps.push({
       type: 'remove',
       payload: { ids: [...localIDsToServerIDs.keys()] },
     });
   }
 
   for (const threadID of threadsThatNeedMessageIDsResorted) {
     threads[threadID].messageIDs = sortMessageIDs(messages)(
       threads[threadID].messageIDs,
     );
     updatedThreads[threadID] = threads[threadID];
   }
 
   newMessageOps.push({
     type: 'replace_threads',
     payload: {
       threads: updatedThreads,
     },
   });
 
   const processedMessageStore = processMessageStoreOperations(
     updatedMessageStore,
     newMessageOps,
   );
 
   const currentAsOf: { [keyserverID: string]: number } = {};
   const newestMessageTimePerKeyserver = findNewestMessageTimePerKeyserver(
     orderedNewMessageInfos,
   );
   for (const keyserverID in newestMessageTimePerKeyserver) {
     currentAsOf[keyserverID] = Math.max(
       newestMessageTimePerKeyserver[keyserverID],
       processedMessageStore.currentAsOf[keyserverID] ?? 0,
     );
   }
 
   const messageStore = {
     messages: processedMessageStore.messages,
     threads: processedMessageStore.threads,
     local: processedMessageStore.local,
     currentAsOf: {
       ...processedMessageStore.currentAsOf,
       ...currentAsOf,
     },
   };
 
   return {
     messageStoreOperations: [
       ...updateWithLatestThreadInfosOps,
       ...newMessageOps,
     ],
     messageStore,
   };
 }
 
 type UpdateMessageStoreWithLatestThreadInfosResult = {
   +messageStoreOperations: MessageStoreOperation[],
   +messageStore: MessageStore,
   +reassignedThreadIDs: string[],
 };
 function updateMessageStoreWithLatestThreadInfos(
   messageStore: MessageStore,
   threadInfos: RawThreadInfos,
 ): UpdateMessageStoreWithLatestThreadInfosResult {
   const messageStoreOperations: MessageStoreOperation[] = [];
   const {
     messageStore: reassignedMessageStore,
     messageStoreOperations: reassignMessagesOps,
     reassignedThreadIDs,
   } = reassignMessagesToRealizedThreads(messageStore, threadInfos);
   messageStoreOperations.push(...reassignMessagesOps);
   const watchedIDs = [...threadWatcher.getWatchedIDs(), ...reassignedThreadIDs];
 
   const filteredThreads: { [string]: ThreadMessageInfo } = {};
   const threadsToRemoveMessagesFrom = [];
   const messageIDsToRemove: string[] = [];
   for (const threadID in reassignedMessageStore.threads) {
     const threadMessageInfo = reassignedMessageStore.threads[threadID];
     const threadInfo = threadInfos[threadID];
     if (isThreadWatched(threadID, threadInfo, watchedIDs)) {
       filteredThreads[threadID] = threadMessageInfo;
     } else {
       threadsToRemoveMessagesFrom.push(threadID);
       messageIDsToRemove.push(...threadMessageInfo.messageIDs);
     }
   }
 
   const updatedThreads: { [string]: ThreadMessageInfo } = {};
   for (const threadID in threadInfos) {
     const threadInfo = threadInfos[threadID];
     if (
       isThreadWatched(threadID, threadInfo, watchedIDs) &&
       !filteredThreads[threadID]
     ) {
       filteredThreads[threadID] = newThread();
       updatedThreads[threadID] = filteredThreads[threadID];
     }
   }
 
   messageStoreOperations.push({
     type: 'remove_threads',
     payload: { ids: threadsToRemoveMessagesFrom },
   });
 
   messageStoreOperations.push({
     type: 'replace_threads',
     payload: {
       threads: updatedThreads,
     },
   });
 
   messageStoreOperations.push({
     type: 'remove_messages_for_threads',
     payload: { threadIDs: threadsToRemoveMessagesFrom },
   });
 
   const localMessagesToRemove = _pick(messageIDsToRemove)(
     reassignedMessageStore.local,
   );
   messageStoreOperations.push({
     type: 'remove_local_message_infos',
     payload: { ids: Object.keys(localMessagesToRemove) },
   });
 
   return {
     messageStoreOperations,
     messageStore: {
       messages: _omit(messageIDsToRemove)(reassignedMessageStore.messages),
       threads: filteredThreads,
       local: _omit(messageIDsToRemove)(reassignedMessageStore.local),
       currentAsOf: reassignedMessageStore.currentAsOf,
     },
     reassignedThreadIDs,
   };
 }
 
 function ensureRealizedThreadIDIsUsedWhenPossible<T: RawMessageInfo>(
   payload: T,
   threadInfos: RawThreadInfos,
 ): T {
   const pendingToRealizedThreadIDs =
     pendingToRealizedThreadIDsSelector(threadInfos);
   const realizedThreadID = pendingToRealizedThreadIDs.get(payload.threadID);
   return realizedThreadID
     ? { ...payload, threadID: realizedThreadID }
     : payload;
 }
 
 const { processStoreOperations: processMessageStoreOperations } =
   messageStoreOpsHandlers;
 
 type ReduceMessageStoreResult = {
   +messageStoreOperations: $ReadOnlyArray<MessageStoreOperation>,
   +messageStore: MessageStore,
 };
 function reduceMessageStore(
   messageStore: MessageStore,
   action: BaseAction,
   newThreadInfos: RawThreadInfos,
+  onStateDifference?: (message: string) => mixed,
 ): ReduceMessageStoreResult {
   if (
     action.type === legacyLogInActionTypes.success ||
     action.type === legacySiweAuthActionTypes.success
   ) {
     const { messagesResult } = action.payload;
     let { messageInfos } = messagesResult;
 
     // If it's a resolution attempt and the userID doesn't change,
     // then we should keep all local messages in the store
     // TODO we can't check if the userID changed until ENG-6126
     if (
       action.payload.authActionSource ===
         recoveryFromReduxActionSources.cookieInvalidationResolutionAttempt ||
       action.payload.authActionSource ===
         recoveryFromReduxActionSources.socketAuthErrorResolutionAttempt
     ) {
       const localMessages = Object.values(messageStore.messages).filter(
         rawMessageInfo => messageID(rawMessageInfo).startsWith(localIDPrefix),
       );
       messageInfos = [...messageInfos, ...localMessages];
     }
 
     const { messageStoreOperations, messageStore: freshStore } =
       freshMessageStore(
         messageInfos,
         messagesResult.truncationStatus,
         messagesResult.currentAsOf,
         newThreadInfos,
       );
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...freshStore,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === keyserverAuthActionTypes.success) {
     const { messagesResult } = action.payload;
     return mergeNewMessages(
       messageStore,
       messagesResult.messageInfos,
       messagesResult.truncationStatus,
       newThreadInfos,
     );
   } else if (action.type === incrementalStateSyncActionType) {
     const { messagesResult, updatesResult } = action.payload;
     if (
       messagesResult.rawMessageInfos.length === 0 &&
       updatesResult.newUpdates.length === 0
     ) {
       return { messageStoreOperations: [], messageStore };
     }
 
     const newMessagesResult = mergeUpdatesWithMessageInfos(
       messagesResult.rawMessageInfos,
       updatesResult.newUpdates,
       messagesResult.truncationStatuses,
     );
 
     return mergeNewMessages(
       messageStore,
       newMessagesResult.rawMessageInfos,
       newMessagesResult.truncationStatuses,
       newThreadInfos,
     );
   } else if (
     action.type === fetchPendingUpdatesActionTypes.success &&
     action.payload.type === stateSyncPayloadTypes.INCREMENTAL
   ) {
     const { messagesResult, updatesResult } = action.payload;
     if (
       messagesResult.rawMessageInfos.length === 0 &&
       updatesResult.newUpdates.length === 0
     ) {
       return { messageStoreOperations: [], messageStore };
     }
 
     const newMessagesResult = mergeUpdatesWithMessageInfos(
       messagesResult.rawMessageInfos,
       updatesResult.newUpdates,
       messagesResult.truncationStatuses,
     );
 
     return mergeNewMessages(
       messageStore,
       newMessagesResult.rawMessageInfos,
       newMessagesResult.truncationStatuses,
       newThreadInfos,
     );
   } else if (action.type === processUpdatesActionType) {
     if (action.payload.updatesResult.newUpdates.length === 0) {
       return { messageStoreOperations: [], messageStore };
     }
 
     const messagesResult = mergeUpdatesWithMessageInfos(
       [],
       action.payload.updatesResult.newUpdates,
     );
 
     const { messageStoreOperations, messageStore: newMessageStore } =
       mergeNewMessages(
         messageStore,
         messagesResult.rawMessageInfos,
         messagesResult.truncationStatuses,
         newThreadInfos,
       );
     return {
       messageStoreOperations,
       messageStore: {
         messages: newMessageStore.messages,
         threads: newMessageStore.threads,
         local: newMessageStore.local,
         currentAsOf: messageStore.currentAsOf,
       },
     };
   } else if (
     action.type === fullStateSyncActionType ||
     action.type === processMessagesActionType ||
     (action.type === fetchPendingUpdatesActionTypes.success &&
       action.payload.type === stateSyncPayloadTypes.FULL)
   ) {
     const { messagesResult } = action.payload;
     return mergeNewMessages(
       messageStore,
       messagesResult.rawMessageInfos,
       messagesResult.truncationStatuses,
       newThreadInfos,
     );
   } else if (
     action.type === fetchSingleMostRecentMessagesFromThreadsActionTypes.success
   ) {
     return mergeNewMessages(
       messageStore,
       action.payload.rawMessageInfos,
       action.payload.truncationStatuses,
       newThreadInfos,
     );
   } else if (
     action.type === fetchMessagesBeforeCursorActionTypes.success ||
     action.type === fetchMostRecentMessagesActionTypes.success
   ) {
     return mergeNewMessages(
       messageStore,
       action.payload.rawMessageInfos,
       { [action.payload.threadID]: action.payload.truncationStatus },
       newThreadInfos,
     );
   } else if (action.type === deleteKeyserverAccountActionTypes.success) {
     const { messageStoreOperations, messageStore: filteredMessageStore } =
       updateMessageStoreWithLatestThreadInfos(messageStore, newThreadInfos);
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     let currentAsOf = {};
     if (action.payload.keyserverIDs) {
       currentAsOf = _omit(action.payload.keyserverIDs)(
         filteredMessageStore.currentAsOf,
       );
     }
 
     return {
       messageStoreOperations,
       messageStore: {
         ...filteredMessageStore,
         currentAsOf,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (
     action.type === deleteThreadActionTypes.success ||
     action.type === leaveThreadActionTypes.success ||
     action.type === setNewSessionActionType
   ) {
     const { messageStoreOperations, messageStore: filteredMessageStore } =
       updateMessageStoreWithLatestThreadInfos(messageStore, newThreadInfos);
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...filteredMessageStore,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === newThreadActionTypes.success) {
     const messagesResult = mergeUpdatesWithMessageInfos(
       action.payload.newMessageInfos,
       action.payload.updatesResult.newUpdates,
     );
     return mergeNewMessages(
       messageStore,
       messagesResult.rawMessageInfos,
       messagesResult.truncationStatuses,
       newThreadInfos,
     );
   } else if (action.type === sendMessageReportActionTypes.success) {
     return mergeNewMessages(
       messageStore,
       [action.payload.messageInfo],
       {
         [(action.payload.messageInfo.threadID: string)]:
           messageTruncationStatus.UNCHANGED,
       },
       newThreadInfos,
     );
   } else if (action.type === legacyKeyserverRegisterActionTypes.success) {
     const truncationStatuses: { [string]: MessageTruncationStatus } = {};
     for (const messageInfo of action.payload.rawMessageInfos) {
       truncationStatuses[messageInfo.threadID] =
         messageTruncationStatus.EXHAUSTIVE;
     }
     return mergeNewMessages(
       messageStore,
       action.payload.rawMessageInfos,
       truncationStatuses,
       newThreadInfos,
     );
   } else if (
     action.type === changeThreadSettingsActionTypes.success ||
     action.type === removeUsersFromThreadActionTypes.success ||
     action.type === changeThreadMemberRolesActionTypes.success ||
     action.type === createEntryActionTypes.success ||
     action.type === saveEntryActionTypes.success ||
     action.type === restoreEntryActionTypes.success ||
     action.type === toggleMessagePinActionTypes.success
   ) {
     return mergeNewMessages(
       messageStore,
       action.payload.newMessageInfos,
       {
         [(action.payload.threadID: string)]: messageTruncationStatus.UNCHANGED,
       },
       newThreadInfos,
     );
   } else if (action.type === deleteEntryActionTypes.success) {
     const payload = action.payload;
     if (payload) {
       return mergeNewMessages(
         messageStore,
         payload.newMessageInfos,
         { [payload.threadID]: messageTruncationStatus.UNCHANGED },
         newThreadInfos,
       );
     }
   } else if (action.type === joinThreadActionTypes.success) {
     const messagesResult = mergeUpdatesWithMessageInfos(
       action.payload.rawMessageInfos,
       action.payload.updatesResult.newUpdates,
     );
     return mergeNewMessages(
       messageStore,
       messagesResult.rawMessageInfos,
       messagesResult.truncationStatuses,
       newThreadInfos,
     );
   } else if (action.type === sendEditMessageActionTypes.success) {
     const { newMessageInfos } = action.payload;
     const truncationStatuses: { [string]: MessageTruncationStatus } = {};
     for (const messageInfo of newMessageInfos) {
       truncationStatuses[messageInfo.threadID] =
         messageTruncationStatus.UNCHANGED;
     }
     return mergeNewMessages(
       messageStore,
       newMessageInfos,
       truncationStatuses,
       newThreadInfos,
     );
   } else if (
     action.type === sendTextMessageActionTypes.started ||
     action.type === sendMultimediaMessageActionTypes.started ||
     action.type === sendReactionMessageActionTypes.started
   ) {
     const payload = ensureRealizedThreadIDIsUsedWhenPossible(
       action.payload,
       newThreadInfos,
     );
     const { localID, threadID } = payload;
     invariant(localID, `localID should be set on ${action.type}`);
 
     const messageIDs = messageStore.threads[threadID]?.messageIDs ?? [];
     if (!messageStore.messages[localID]) {
       for (const existingMessageID of messageIDs) {
         const existingMessageInfo = messageStore.messages[existingMessageID];
         if (existingMessageInfo && existingMessageInfo.localID === localID) {
           return { messageStoreOperations: [], messageStore };
         }
       }
     }
 
     const messageStoreOperations: MessageStoreOperation[] = [
       {
         type: 'replace',
         payload: { id: localID, messageInfo: payload },
       },
     ];
 
     let updatedThreads;
     if (messageStore.messages[localID]) {
       const messages = {
         ...messageStore.messages,
         [(localID: string)]: payload,
       };
       const thread = messageStore.threads[threadID];
       updatedThreads = {
         [(threadID: string)]: {
           messageIDs: sortMessageIDs(messages)(messageIDs),
           startReached: thread?.startReached ?? true,
         },
       };
 
       messageStoreOperations.push({
         type: 'remove_local_message_infos',
         payload: {
           ids: [localID],
         },
       });
     } else {
       updatedThreads = {
         [(threadID: string)]: messageStore.threads[threadID]
           ? {
               ...messageStore.threads[threadID],
               messageIDs: [localID, ...messageIDs],
             }
           : {
               messageIDs: [localID],
               startReached: true,
             },
       };
     }
 
     messageStoreOperations.push({
       type: 'replace_threads',
       payload: {
         threads: { ...updatedThreads },
       },
     });
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     const newMessageStore = {
       messages: processedMessageStore.messages,
       threads: processedMessageStore.threads,
       local: processedMessageStore.local,
       currentAsOf: messageStore.currentAsOf,
     };
 
     return {
       messageStoreOperations,
       messageStore: newMessageStore,
     };
   } else if (
     action.type === sendTextMessageActionTypes.failed ||
     action.type === sendMultimediaMessageActionTypes.failed
   ) {
     const { localID } = action.payload;
 
     const messageStoreOperations = [
       {
         type: 'replace_local_message_info',
         payload: {
           id: localID,
           localMessageInfo: {
             sendFailed: true,
           },
         },
       },
     ];
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
         currentAsOf: messageStore.currentAsOf,
       },
     };
   } else if (action.type === sendReactionMessageActionTypes.failed) {
     const { localID, threadID } = action.payload;
     const messageStoreOperations: MessageStoreOperation[] = [];
 
     messageStoreOperations.push({
       type: 'remove',
       payload: { ids: [localID] },
     });
 
     const newMessageIDs = messageStore.threads[threadID].messageIDs.filter(
       id => id !== localID,
     );
     const updatedThreads = {
       [threadID]: {
         ...messageStore.threads[threadID],
         messageIDs: newMessageIDs,
       },
     };
 
     messageStoreOperations.push({
       type: 'replace_threads',
       payload: { threads: updatedThreads },
     });
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: processedMessageStore,
     };
   } else if (
     action.type === sendTextMessageActionTypes.success ||
     action.type === sendMultimediaMessageActionTypes.success ||
     action.type === sendReactionMessageActionTypes.success
   ) {
     const { payload } = action;
     invariant(
       !threadIsPending(payload.threadID),
       'Successful message action should have realized thread id',
     );
     const replaceMessageKey = (messageKey: string) =>
       messageKey === payload.localID ? payload.serverID : messageKey;
     let newMessages;
     const messageStoreOperations: MessageStoreOperation[] = [];
     if (messageStore.messages[payload.serverID]) {
       // If somehow the serverID got in there already, we'll just update the
       // serverID message and scrub the localID one
       newMessages = _omitBy(
         (messageInfo: RawMessageInfo) =>
           messageInfo.type === messageTypes.TEXT &&
           !messageInfo.id &&
           messageInfo.localID === payload.localID,
       )(messageStore.messages);
       messageStoreOperations.push({
         type: 'remove',
         payload: { ids: [payload.localID] },
       });
     } else if (messageStore.messages[payload.localID]) {
       // The normal case, the localID message gets replaced by the serverID one
       newMessages = _mapKeys(replaceMessageKey)(messageStore.messages);
       messageStoreOperations.push({
         type: 'rekey',
         payload: { from: payload.localID, to: payload.serverID },
       });
     } else {
       // Well this is weird, we probably got deauthorized between when the
       // action was dispatched and when we ran this reducer...
       return { messageStoreOperations, messageStore };
     }
 
     const newMessage = {
       ...newMessages[payload.serverID],
       id: payload.serverID,
       localID: payload.localID,
       time: payload.time,
     };
     newMessages[payload.serverID] = newMessage;
     messageStoreOperations.push({
       type: 'replace',
       payload: { id: payload.serverID, messageInfo: newMessage },
     });
     const threadID = payload.threadID;
     const newMessageIDs = _flow(
       _uniq,
       sortMessageIDs(newMessages),
     )(messageStore.threads[threadID].messageIDs.map(replaceMessageKey));
 
     messageStoreOperations.push({
       type: 'remove_local_message_infos',
       payload: {
         ids: [payload.localID],
       },
     });
 
     const updatedThreads = {
       [threadID]: {
         ...messageStore.threads[threadID],
         messageIDs: newMessageIDs,
       },
     };
     messageStoreOperations.push({
       type: 'replace_threads',
       payload: { threads: updatedThreads },
     });
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...messageStore,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === saveMessagesActionType) {
     const truncationStatuses: { [string]: MessageTruncationStatus } = {};
     for (const messageInfo of action.payload.rawMessageInfos) {
       truncationStatuses[messageInfo.threadID] =
         messageTruncationStatus.UNCHANGED;
     }
     const { messageStoreOperations, messageStore: newMessageStore } =
       mergeNewMessages(
         messageStore,
         action.payload.rawMessageInfos,
         truncationStatuses,
         newThreadInfos,
       );
     return {
       messageStoreOperations,
       messageStore: {
         messages: newMessageStore.messages,
         threads: newMessageStore.threads,
         local: newMessageStore.local,
         // We avoid bumping currentAsOf because notifs may include a contracted
         // RawMessageInfo, so we want to make sure we still fetch it
         currentAsOf: messageStore.currentAsOf,
       },
     };
   } else if (action.type === messageStorePruneActionType) {
     const messageIDsToPrune = [];
 
     const updatedThreads: { [string]: ThreadMessageInfo } = {};
     for (const threadID of action.payload.threadIDs) {
       let thread = messageStore.threads[threadID];
       if (!thread) {
         continue;
       }
 
       const newMessageIDs = [...thread.messageIDs];
       const removed = newMessageIDs.splice(defaultNumberPerThread);
       if (removed.length > 0) {
         thread = {
           ...thread,
           messageIDs: newMessageIDs,
           startReached: false,
         };
       }
       for (const id of removed) {
         messageIDsToPrune.push(id);
       }
 
       updatedThreads[threadID] = thread;
     }
 
     const localMessageIDsToRemove = _pick(messageIDsToPrune)(
       messageStore.local,
     );
 
     const messageStoreOperations = [
       {
         type: 'remove',
         payload: { ids: messageIDsToPrune },
       },
       {
         type: 'replace_threads',
         payload: {
           threads: updatedThreads,
         },
       },
       {
         type: 'remove_local_message_infos',
         payload: { ids: Object.keys(localMessageIDsToRemove) },
       },
     ];
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     const newMessageStore = {
       messages: processedMessageStore.messages,
       threads: processedMessageStore.threads,
       local: processedMessageStore.local,
       currentAsOf: messageStore.currentAsOf,
     };
 
     return {
       messageStoreOperations,
       messageStore: newMessageStore,
     };
   } else if (action.type === updateMultimediaMessageMediaActionType) {
     const { messageID: id, currentMediaID, mediaUpdate } = action.payload;
     const message = messageStore.messages[id];
     invariant(message, `message with ID ${id} could not be found`);
     invariant(
       message.type === messageTypes.IMAGES ||
         message.type === messageTypes.MULTIMEDIA,
       `message with ID ${id} is not multimedia`,
     );
 
     let updatedMessage;
     let replaced = false;
     if (message.type === messageTypes.IMAGES) {
       const media: Image[] = [];
       for (const singleMedia of message.media) {
         if (singleMedia.id !== currentMediaID) {
           media.push(singleMedia);
         } else {
           let updatedMedia: Image = {
             id: mediaUpdate.id ?? singleMedia.id,
             type: 'photo',
             uri: mediaUpdate.uri ?? singleMedia.uri,
             dimensions: mediaUpdate.dimensions ?? singleMedia.dimensions,
             thumbHash: mediaUpdate.thumbHash ?? singleMedia.thumbHash,
           };
 
           if (
             'localMediaSelection' in singleMedia &&
             !('localMediaSelection' in mediaUpdate)
           ) {
             updatedMedia = {
               ...updatedMedia,
               localMediaSelection: singleMedia.localMediaSelection,
             };
           } else if (mediaUpdate.localMediaSelection) {
             updatedMedia = {
               ...updatedMedia,
               localMediaSelection: mediaUpdate.localMediaSelection,
             };
           }
 
           media.push(updatedMedia);
           replaced = true;
         }
       }
       updatedMessage = { ...message, media };
     } else {
       const media: Media[] = [];
       for (const singleMedia of message.media) {
         if (singleMedia.id !== currentMediaID) {
           media.push(singleMedia);
         } else if (
           singleMedia.type === 'photo' &&
           mediaUpdate.type === 'photo'
         ) {
           media.push({ ...singleMedia, ...mediaUpdate });
           replaced = true;
         } else if (
           singleMedia.type === 'video' &&
           mediaUpdate.type === 'video'
         ) {
           media.push({ ...singleMedia, ...mediaUpdate });
           replaced = true;
         } else if (
           singleMedia.type === 'encrypted_photo' &&
           mediaUpdate.type === 'encrypted_photo'
         ) {
           if (singleMedia.blobURI) {
             const { holder, ...rest } = mediaUpdate;
             if (holder) {
               console.log(
                 `mediaUpdate contained holder for media ${singleMedia.id} ` +
                   'that has blobURI',
               );
             }
             media.push({ ...singleMedia, ...rest });
           } else {
             invariant(
               singleMedia.holder,
               'Encrypted media must have holder or blobURI',
             );
             const { blobURI, ...rest } = mediaUpdate;
             if (blobURI) {
               console.log(
                 `mediaUpdate contained blobURI for media ${singleMedia.id} ` +
                   'that has holder',
               );
             }
             media.push({ ...singleMedia, ...rest });
           }
           replaced = true;
         } else if (
           singleMedia.type === 'encrypted_video' &&
           mediaUpdate.type === 'encrypted_video'
         ) {
           if (singleMedia.blobURI) {
             const { holder, thumbnailHolder, ...rest } = mediaUpdate;
             if (holder || thumbnailHolder) {
               console.log(
                 'mediaUpdate contained holder or thumbnailHolder for media ' +
                   `${singleMedia.id} that has blobURI`,
               );
             }
             media.push({ ...singleMedia, ...rest });
           } else {
             invariant(
               singleMedia.holder,
               'Encrypted media must have holder or blobURI',
             );
             const { blobURI, thumbnailBlobURI, ...rest } = mediaUpdate;
             if (blobURI || thumbnailBlobURI) {
               console.log(
                 'mediaUpdate contained blobURI or thumbnailBlobURI for media ' +
                   `${singleMedia.id} that has holder`,
               );
             }
             media.push({ ...singleMedia, ...rest });
           }
           replaced = true;
         } else if (
           singleMedia.type === 'photo' &&
           mediaUpdate.type === 'encrypted_photo'
         ) {
           // extract fields that are absent in encrypted_photo type
           const { uri, localMediaSelection, ...original } = singleMedia;
           const {
             holder: newHolder,
             blobURI: newBlobURI,
             encryptionKey,
             ...update
           } = mediaUpdate;
           const blobURI = newBlobURI ?? newHolder;
           invariant(
             blobURI && encryptionKey,
             'holder and encryptionKey are required for encrypted_photo message',
           );
           media.push({
             ...original,
             ...update,
             type: 'encrypted_photo',
             blobURI,
             encryptionKey,
           });
           replaced = true;
         } else if (
           singleMedia.type === 'video' &&
           mediaUpdate.type === 'encrypted_video'
         ) {
           const { uri, thumbnailURI, localMediaSelection, ...original } =
             singleMedia;
           const {
             holder: newHolder,
             blobURI: newBlobURI,
             encryptionKey,
             thumbnailHolder: newThumbnailHolder,
             thumbnailBlobURI: newThumbnailBlobURI,
             thumbnailEncryptionKey,
             ...update
           } = mediaUpdate;
           const blobURI = newBlobURI ?? newHolder;
           invariant(
             blobURI && encryptionKey,
             'holder and encryptionKey are required for encrypted_video message',
           );
           const thumbnailBlobURI = newThumbnailBlobURI ?? newThumbnailHolder;
           invariant(
             thumbnailBlobURI && thumbnailEncryptionKey,
             'thumbnailHolder and thumbnailEncryptionKey are required for ' +
               'encrypted_video message',
           );
           media.push({
             ...original,
             ...update,
             type: 'encrypted_video',
             blobURI,
             encryptionKey,
             thumbnailBlobURI,
             thumbnailEncryptionKey,
           });
           replaced = true;
         } else if (mediaUpdate.id) {
           const { id: newID } = mediaUpdate;
           media.push({ ...singleMedia, id: newID });
           replaced = true;
         }
       }
       updatedMessage = { ...message, media };
     }
 
     invariant(
       replaced,
       `message ${id} did not contain media with ID ${currentMediaID}`,
     );
 
     const messageStoreOperations = [
       {
         type: 'replace',
         payload: {
           id,
           messageInfo: updatedMessage,
         },
       },
     ];
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...messageStore,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === createLocalMessageActionType) {
     const messageInfo = ensureRealizedThreadIDIsUsedWhenPossible(
       action.payload,
       newThreadInfos,
     );
     const { localID, threadID } = messageInfo;
 
     const messageIDs =
       messageStore.threads[messageInfo.threadID]?.messageIDs ?? [];
     const threadState: ThreadMessageInfo = messageStore.threads[threadID]
       ? {
           ...messageStore.threads[threadID],
           messageIDs: [localID, ...messageIDs],
         }
       : {
           messageIDs: [localID],
           startReached: true,
         };
 
     const messageStoreOperations = [
       {
         type: 'replace',
         payload: { id: localID, messageInfo },
       },
       {
         type: 'replace_threads',
         payload: {
           threads: { [(threadID: string)]: threadState },
         },
       },
     ];
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...messageStore,
         threads: processedMessageStore.threads,
         messages: processedMessageStore.messages,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === processServerRequestsActionType) {
     const {
       messageStoreOperations,
       messageStore: messageStoreAfterReassignment,
     } = reassignMessagesToRealizedThreads(messageStore, newThreadInfos);
 
     const processedMessageStore = processMessageStoreOperations(
       messageStore,
       messageStoreOperations,
     );
 
     return {
       messageStoreOperations,
       messageStore: {
         ...messageStoreAfterReassignment,
         messages: processedMessageStore.messages,
         threads: processedMessageStore.threads,
         local: processedMessageStore.local,
       },
     };
   } else if (action.type === setClientDBStoreActionType) {
     const actionPayloadMessageStoreThreads =
       translateClientDBThreadMessageInfos(
         action.payload.messageStoreThreads ?? [],
       );
 
+    const actionPayloadMessageStoreLocalMessageInfos =
+      action.payload.messageStoreLocalMessageInfos ?? {};
+
+    assertMessageStoreLocalMessageInfosAreEqual(
+      {
+        ...messageStore,
+        local: actionPayloadMessageStoreLocalMessageInfos,
+      },
+      messageStore,
+      action.type,
+      onStateDifference,
+    );
+
     const newThreads: {
       [threadID: string]: ThreadMessageInfo,
     } = { ...messageStore.threads };
     for (const threadID in actionPayloadMessageStoreThreads) {
       newThreads[threadID] = {
         ...actionPayloadMessageStoreThreads[threadID],
         messageIDs: messageStore.threads?.[threadID]?.messageIDs ?? [],
       };
     }
 
     const payloadMessages = action.payload.messages;
     if (!payloadMessages) {
       return {
         messageStoreOperations: [],
         messageStore: { ...messageStore, threads: newThreads },
       };
     }
 
     const { messageStoreOperations, messageStore: updatedMessageStore } =
       updateMessageStoreWithLatestThreadInfos(
         { ...messageStore, threads: newThreads },
         newThreadInfos,
       );
 
     let threads = { ...updatedMessageStore.threads };
     let local = { ...updatedMessageStore.local };
 
     // Store message IDs already contained within threads so that we
     // do not insert duplicates
     const existingMessageIDs = new Set<string>();
     for (const threadID in threads) {
       threads[threadID].messageIDs.forEach(msgID => {
         existingMessageIDs.add(msgID);
       });
     }
     const threadsNeedMsgIDsResorting = new Set<string>();
     const actionPayloadMessages =
       messageStoreOpsHandlers.translateClientDBData(payloadMessages);
 
     // When starting the app on native, we filter out any local-only multimedia
     // messages because the relevant context is no longer available
     const messageIDsToBeRemoved = [];
     const threadsToAdd: { [string]: ThreadMessageInfo } = {};
     for (const id in actionPayloadMessages) {
       const message = actionPayloadMessages[id];
       const { threadID } = message;
       let existingThread = threads[threadID];
       if (!existingThread) {
         existingThread = newThread();
         threadsToAdd[threadID] = existingThread;
       }
       if (
         (message.type === messageTypes.IMAGES ||
           message.type === messageTypes.MULTIMEDIA) &&
         !message.id
       ) {
         messageIDsToBeRemoved.push(id);
         threads = {
           ...threads,
           [(threadID: string)]: {
             ...existingThread,
             messageIDs: existingThread.messageIDs.filter(
               curMessageID => curMessageID !== id,
             ),
           },
         };
         local = _pickBy(
           (localInfo: LocalMessageInfo, key: string) => key !== id,
         )(local);
       } else if (!existingMessageIDs.has(id)) {
         threads = {
           ...threads,
           [(threadID: string)]: {
             ...existingThread,
             messageIDs: [...existingThread.messageIDs, id],
           },
         };
         threadsNeedMsgIDsResorting.add(threadID);
       } else if (!threads[threadID]) {
         threads = { ...threads, [(threadID: string)]: existingThread };
       }
     }
 
     for (const threadID of threadsNeedMsgIDsResorting) {
       threads[threadID].messageIDs = sortMessageIDs(actionPayloadMessages)(
         threads[threadID].messageIDs,
       );
     }
 
     const newMessageStore = {
       ...updatedMessageStore,
       messages: actionPayloadMessages,
       threads: threads,
       local: local,
     };
 
     if (messageIDsToBeRemoved.length > 0) {
       messageStoreOperations.push({
         type: 'remove',
         payload: { ids: messageIDsToBeRemoved },
       });
     }
 
     const processedMessageStore = processMessageStoreOperations(
       newMessageStore,
       messageStoreOperations,
     );
 
     messageStoreOperations.push({
       type: 'replace_threads',
       payload: { threads: threadsToAdd },
     });
 
     return {
       messageStoreOperations,
       messageStore: processedMessageStore,
     };
   }
   return { messageStoreOperations: [], messageStore };
 }
 
 type MergedUpdatesWithMessages = {
   +rawMessageInfos: $ReadOnlyArray<RawMessageInfo>,
   +truncationStatuses: MessageTruncationStatuses,
 };
 function mergeUpdatesWithMessageInfos(
   messageInfos: $ReadOnlyArray<RawMessageInfo>,
   newUpdates: $ReadOnlyArray<ClientUpdateInfo>,
   truncationStatuses?: MessageTruncationStatuses,
 ): MergedUpdatesWithMessages {
   const messageIDs = new Set(
     messageInfos.map(messageInfo => messageInfo.id).filter(Boolean),
   );
   const mergedMessageInfos = [...messageInfos];
   const mergedTruncationStatuses = { ...truncationStatuses };
 
   for (const update of newUpdates) {
     const { mergeMessageInfosAndTruncationStatuses } = updateSpecs[update.type];
     if (!mergeMessageInfosAndTruncationStatuses) {
       continue;
     }
     mergeMessageInfosAndTruncationStatuses(
       messageIDs,
       mergedMessageInfos,
       mergedTruncationStatuses,
       update,
     );
   }
   return {
     rawMessageInfos: mergedMessageInfos,
     truncationStatuses: mergedTruncationStatuses,
   };
 }
 
 export { freshMessageStore, reduceMessageStore };
diff --git a/lib/utils/message-ops-utils.js b/lib/utils/message-ops-utils.js
index 95b682ec7..7c76a686f 100644
--- a/lib/utils/message-ops-utils.js
+++ b/lib/utils/message-ops-utils.js
@@ -1,298 +1,314 @@
 // @flow
 
 import _keyBy from 'lodash/fp/keyBy.js';
 
 import {
   contentStringForMediaArray,
   encryptedMediaBlobURI,
   encryptedVideoThumbnailBlobURI,
 } from '../media/media-utils.js';
 import { messageID } from '../shared/message-utils.js';
 import { messageSpecs } from '../shared/messages/message-specs.js';
 import type {
   EncryptedVideo,
   Media,
   ClientDBMediaInfo,
   Image,
   Video,
 } from '../types/media-types';
 import {
   messageTypes,
   assertMessageType,
 } from '../types/message-types-enum.js';
 import {
   type ClientDBMessageInfo,
   type RawMessageInfo,
   type ClientDBThreadMessageInfo,
   type ThreadMessageInfo,
+  type ClientDBLocalMessageInfo,
+  type MessageStoreLocalMessageInfos,
 } from '../types/message-types.js';
 import type { MediaMessageServerDBContent } from '../types/messages/media.js';
 
 function translateMediaToClientDBMediaInfos(
   media: $ReadOnlyArray<Media>,
 ): $ReadOnlyArray<ClientDBMediaInfo> {
   const clientDBMediaInfos = [];
   for (const m of media) {
     const type =
       m.type === 'encrypted_photo'
         ? 'photo'
         : m.type === 'encrypted_video'
           ? 'video'
           : m.type;
 
     const mediaURI =
       m.type === 'encrypted_photo' || m.type === 'encrypted_video'
         ? encryptedMediaBlobURI(m)
         : m.uri;
     clientDBMediaInfos.push({
       id: m.id,
       uri: mediaURI,
       type: type,
       extras: JSON.stringify({
         dimensions: m.dimensions,
         loop: type === 'video' ? m.loop : false,
         local_media_selection: m.localMediaSelection,
         encryption_key: m.encryptionKey,
         thumb_hash: m.thumbHash ?? undefined,
       }),
     });
     if (m.type === 'video' || m.type === 'encrypted_video') {
       const thumbnailURI =
         m.type === 'encrypted_video'
           ? encryptedVideoThumbnailBlobURI(m)
           : m.thumbnailURI;
       clientDBMediaInfos.push({
         id: m.thumbnailID,
         uri: thumbnailURI,
         type: 'photo',
         extras: JSON.stringify({
           dimensions: m.dimensions,
           loop: false,
           encryption_key: m.thumbnailEncryptionKey,
           thumb_hash: m.thumbnailThumbHash ?? undefined,
         }),
       });
     }
   }
   return clientDBMediaInfos;
 }
 
 function translateClientDBMediaInfoToImage(
   clientDBMediaInfo: ClientDBMediaInfo,
 ): Image {
   const { dimensions, local_media_selection, thumb_hash } = JSON.parse(
     clientDBMediaInfo.extras,
   );
 
   if (!local_media_selection) {
     return {
       id: clientDBMediaInfo.id,
       uri: clientDBMediaInfo.uri,
       type: 'photo',
       dimensions: dimensions,
       thumbHash: thumb_hash,
     };
   }
   return {
     id: clientDBMediaInfo.id,
     uri: clientDBMediaInfo.uri,
     type: 'photo',
     dimensions: dimensions,
     localMediaSelection: local_media_selection,
     thumbHash: thumb_hash,
   };
 }
 
 function translateClientDBMediaInfosToMedia(
   clientDBMessageInfo: ClientDBMessageInfo,
 ): $ReadOnlyArray<Media> {
   if (parseInt(clientDBMessageInfo.type) === messageTypes.IMAGES) {
     if (!clientDBMessageInfo.media_infos) {
       return [];
     }
     return clientDBMessageInfo.media_infos.map(
       translateClientDBMediaInfoToImage,
     );
   }
   if (
     !clientDBMessageInfo.media_infos ||
     clientDBMessageInfo.media_infos.length === 0
   ) {
     return [];
   }
   const mediaInfos: $ReadOnlyArray<ClientDBMediaInfo> =
     clientDBMessageInfo.media_infos;
   const mediaMap = _keyBy('id')(mediaInfos);
 
   if (!clientDBMessageInfo.content) {
     return [];
   }
   const messageContent: $ReadOnlyArray<MediaMessageServerDBContent> =
     JSON.parse(clientDBMessageInfo.content);
 
   const translatedMedia: Media[] = [];
   for (const media of messageContent) {
     if (media.type === 'photo') {
       const extras = JSON.parse(mediaMap[media.uploadID].extras);
       const {
         dimensions,
         encryption_key: encryptionKey,
         thumb_hash: thumbHash,
       } = extras;
 
       let image;
       if (encryptionKey) {
         image = {
           id: media.uploadID,
           type: 'encrypted_photo',
           blobURI: mediaMap[media.uploadID].uri,
           dimensions,
           encryptionKey,
           thumbHash,
         };
       } else {
         image = {
           id: media.uploadID,
           type: 'photo',
           uri: mediaMap[media.uploadID].uri,
           dimensions,
           thumbHash,
         };
       }
       translatedMedia.push(image);
     } else if (media.type === 'video') {
       const extras = JSON.parse(mediaMap[media.uploadID].extras);
       const {
         dimensions,
         loop,
         local_media_selection: localMediaSelection,
         encryption_key: encryptionKey,
       } = extras;
 
       const {
         encryption_key: thumbnailEncryptionKey,
         thumb_hash: thumbnailThumbHash,
       } = JSON.parse(mediaMap[media.thumbnailUploadID].extras);
       if (encryptionKey) {
         const video: EncryptedVideo = {
           id: media.uploadID,
           type: 'encrypted_video',
           blobURI: mediaMap[media.uploadID].uri,
           dimensions,
           loop,
           encryptionKey,
           thumbnailID: media.thumbnailUploadID,
           thumbnailBlobURI: mediaMap[media.thumbnailUploadID].uri,
           thumbnailEncryptionKey,
           thumbnailThumbHash,
         };
         translatedMedia.push(video);
       } else {
         const video: Video = {
           id: media.uploadID,
           uri: mediaMap[media.uploadID].uri,
           type: 'video',
           dimensions,
           loop,
           thumbnailID: media.thumbnailUploadID,
           thumbnailURI: mediaMap[media.thumbnailUploadID].uri,
           thumbnailThumbHash,
         };
         translatedMedia.push(
           localMediaSelection ? { ...video, localMediaSelection } : video,
         );
       }
     }
   }
   return translatedMedia;
 }
 
 function translateRawMessageInfoToClientDBMessageInfo(
   rawMessageInfo: RawMessageInfo,
 ): ClientDBMessageInfo {
   return {
     id: messageID(rawMessageInfo),
     local_id: rawMessageInfo.localID ? rawMessageInfo.localID : null,
     thread: rawMessageInfo.threadID,
     user: rawMessageInfo.creatorID,
     type: rawMessageInfo.type.toString(),
     future_type:
       rawMessageInfo.type === messageTypes.UNSUPPORTED
         ? rawMessageInfo.unsupportedMessageInfo.type.toString()
         : null,
     time: rawMessageInfo.time.toString(),
     content:
       messageSpecs[rawMessageInfo.type].messageContentForClientDB?.(
         rawMessageInfo,
       ),
     media_infos:
       rawMessageInfo.type === messageTypes.IMAGES ||
       rawMessageInfo.type === messageTypes.MULTIMEDIA
         ? translateMediaToClientDBMediaInfos(rawMessageInfo.media)
         : null,
   };
 }
 
 function translateClientDBMessageInfoToRawMessageInfo(
   clientDBMessageInfo: ClientDBMessageInfo,
 ): RawMessageInfo {
   return messageSpecs[
     assertMessageType(parseInt(clientDBMessageInfo.type))
   ].rawMessageInfoFromClientDB(clientDBMessageInfo);
 }
 
 type TranslatedThreadMessageInfo = {
   +startReached: boolean,
 };
 export type TranslatedThreadMessageInfos = {
   +[threadID: string]: TranslatedThreadMessageInfo,
 };
 function translateClientDBThreadMessageInfos(
   clientDBThreadMessageInfo: $ReadOnlyArray<ClientDBThreadMessageInfo>,
 ): TranslatedThreadMessageInfos {
   return Object.fromEntries(
     clientDBThreadMessageInfo.map((threadInfo: ClientDBThreadMessageInfo) => [
       threadInfo.id,
       {
         startReached: threadInfo.start_reached === '1',
       },
     ]),
   );
 }
 
 function translateThreadMessageInfoToClientDBThreadMessageInfo(
   id: string,
   threadMessageInfo: ThreadMessageInfo | TranslatedThreadMessageInfo,
 ): ClientDBThreadMessageInfo {
   const startReached = threadMessageInfo.startReached ? 1 : 0;
 
   return {
     id,
     start_reached: startReached.toString(),
   };
 }
 
+function translateClientDBLocalMessageInfos(
+  clientDBLocalMessageInfos: $ReadOnlyArray<ClientDBLocalMessageInfo>,
+): MessageStoreLocalMessageInfos {
+  return Object.fromEntries(
+    clientDBLocalMessageInfos.map(
+      (localMessageInfo: ClientDBLocalMessageInfo) => [
+        localMessageInfo.id,
+        JSON.parse(localMessageInfo.localMessageInfo),
+      ],
+    ),
+  );
+}
+
 function getPinnedContentFromClientDBMessageInfo(
   clientDBMessageInfo: ClientDBMessageInfo,
 ): string {
   const { media_infos } = clientDBMessageInfo;
 
   let pinnedContent;
   if (!media_infos || media_infos.length === 0) {
     pinnedContent = 'a message';
   } else {
     const media = translateClientDBMediaInfosToMedia(clientDBMessageInfo);
     pinnedContent = contentStringForMediaArray(media);
   }
   return pinnedContent;
 }
 
 export {
   translateClientDBMediaInfoToImage,
   translateRawMessageInfoToClientDBMessageInfo,
   translateClientDBMessageInfoToRawMessageInfo,
   translateClientDBMediaInfosToMedia,
   getPinnedContentFromClientDBMessageInfo,
   translateClientDBThreadMessageInfos,
   translateThreadMessageInfoToClientDBThreadMessageInfo,
+  translateClientDBLocalMessageInfos,
 };
diff --git a/native/data/sqlite-data-handler.js b/native/data/sqlite-data-handler.js
index a10d1fa5f..b04eb1c47 100644
--- a/native/data/sqlite-data-handler.js
+++ b/native/data/sqlite-data-handler.js
@@ -1,323 +1,329 @@
 // @flow
 
 import invariant from 'invariant';
 import * as React from 'react';
 
 import { setClientDBStoreActionType } from 'lib/actions/client-db-store-actions.js';
 import { MediaCacheContext } from 'lib/components/media-cache-provider.react.js';
 import type { CallSingleKeyserverEndpoint } from 'lib/keyserver-conn/call-single-keyserver-endpoint.js';
 import type { CallKeyserverEndpoint } from 'lib/keyserver-conn/keyserver-conn-types.js';
 import { useKeyserverRecoveryLogIn } from 'lib/keyserver-conn/recovery-utils.js';
 import { auxUserStoreOpsHandlers } from 'lib/ops/aux-user-store-ops.js';
 import { communityStoreOpsHandlers } from 'lib/ops/community-store-ops.js';
 import { entryStoreOpsHandlers } from 'lib/ops/entries-store-ops.js';
 import { integrityStoreOpsHandlers } from 'lib/ops/integrity-store-ops.js';
 import { keyserverStoreOpsHandlers } from 'lib/ops/keyserver-store-ops.js';
 import { reportStoreOpsHandlers } from 'lib/ops/report-store-ops.js';
 import { syncedMetadataStoreOpsHandlers } from 'lib/ops/synced-metadata-store-ops.js';
 import { threadActivityStoreOpsHandlers } from 'lib/ops/thread-activity-store-ops.js';
 import { threadStoreOpsHandlers } from 'lib/ops/thread-store-ops.js';
 import { userStoreOpsHandlers } from 'lib/ops/user-store-ops.js';
 import { isLoggedIn } from 'lib/selectors/user-selectors.js';
 import { useInitialNotificationsEncryptedMessage } from 'lib/shared/crypto-utils.js';
 import { shouldClearData } from 'lib/shared/data-utils.js';
 import {
   recoveryFromDataHandlerActionSources,
   type RecoveryFromDataHandlerActionSource,
 } from 'lib/types/account-types.js';
 import { getMessageForException } from 'lib/utils/errors.js';
+import { translateClientDBLocalMessageInfos } from 'lib/utils/message-ops-utils.js';
 import { useDispatchActionPromise } from 'lib/utils/redux-promise-utils.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
 import { supportingMultipleKeyservers } from 'lib/utils/services-utils.js';
 import { reportDatabaseDeleted } from 'lib/utils/wait-until-db-deleted.js';
 
 import { resolveKeyserverSessionInvalidationUsingNativeCredentials } from '../account/legacy-recover-keyserver-session.js';
 import { authoritativeKeyserverID } from '../authoritative-keyserver.js';
 import { filesystemMediaCache } from '../media/media-cache.js';
 import { commCoreModule } from '../native-modules.js';
 import { setStoreLoadedActionType } from '../redux/action-types.js';
 import { useSelector } from '../redux/redux-utils.js';
 import Alert from '../utils/alert.js';
 import { isTaskCancelledError } from '../utils/error-handling.js';
 import { useStaffCanSee } from '../utils/staff-utils.js';
 
 async function clearSensitiveData() {
   try {
     await commCoreModule.clearSensitiveData();
     reportDatabaseDeleted();
   } catch (error) {
     console.log(
       `Error clearing SQLite database: ${
         getMessageForException(error) ?? 'unknown'
       }`,
     );
     throw error;
   }
   try {
     await filesystemMediaCache.clearCache();
   } catch {
     throw new Error('clear_media_cache_failed');
   }
 }
 
 const returnsFalseSinceDoesntNeedToSupportCancellation = () => false;
 
 function SQLiteDataHandler(): React.Node {
   const storeLoaded = useSelector(state => state.storeLoaded);
 
   const dispatch = useDispatch();
   const dispatchActionPromise = useDispatchActionPromise();
 
   const rehydrateConcluded = useSelector(
     state => !!(state._persist && state._persist.rehydrated),
   );
   const staffCanSee = useStaffCanSee();
   const loggedIn = useSelector(isLoggedIn);
   const currentLoggedInUserID = useSelector(state =>
     state.currentUserInfo?.anonymous ? undefined : state.currentUserInfo?.id,
   );
   const mediaCacheContext = React.useContext(MediaCacheContext);
   const getInitialNotificationsEncryptedMessage =
     useInitialNotificationsEncryptedMessage(authoritativeKeyserverID);
 
   const keyserverRecoveryLogIn = useKeyserverRecoveryLogIn(
     authoritativeKeyserverID,
   );
   const recoverDataFromAuthoritativeKeyserver = React.useCallback(
     async (source: RecoveryFromDataHandlerActionSource) => {
       const innerRecoverDataFromAuthoritativeKeyserver = (
         callSingleKeyserverEndpoint: CallSingleKeyserverEndpoint,
         callKeyserverEndpoint: CallKeyserverEndpoint,
       ) =>
         resolveKeyserverSessionInvalidationUsingNativeCredentials(
           callSingleKeyserverEndpoint,
           callKeyserverEndpoint,
           dispatchActionPromise,
           source,
           authoritativeKeyserverID,
           getInitialNotificationsEncryptedMessage,
           returnsFalseSinceDoesntNeedToSupportCancellation,
         );
       try {
         await keyserverRecoveryLogIn(
           source,
           innerRecoverDataFromAuthoritativeKeyserver,
           returnsFalseSinceDoesntNeedToSupportCancellation,
         );
         dispatch({ type: setStoreLoadedActionType });
       } catch (fetchCookieException) {
         if (staffCanSee) {
           Alert.alert(
             `Error fetching new cookie from native credentials: ${
               getMessageForException(fetchCookieException) ??
               '{no exception message}'
             }. Please kill the app.`,
           );
         } else {
           commCoreModule.terminate();
         }
       }
     },
     [
       dispatch,
       dispatchActionPromise,
       keyserverRecoveryLogIn,
       staffCanSee,
       getInitialNotificationsEncryptedMessage,
     ],
   );
 
   const recoverData = React.useCallback(
     (source: RecoveryFromDataHandlerActionSource) => {
       if (supportingMultipleKeyservers) {
         invariant(
           false,
           'recoverData in SQLiteDataHandler is not yet implemented when ' +
             'supportingMultipleKeyservers is enabled. It should recover ' +
             'from broken SQLite state by restoring from backup service',
         );
       }
       return recoverDataFromAuthoritativeKeyserver(source);
     },
     [recoverDataFromAuthoritativeKeyserver],
   );
 
   const callClearSensitiveData = React.useCallback(
     async (triggeredBy: string) => {
       await clearSensitiveData();
       console.log(`SQLite database deletion was triggered by ${triggeredBy}`);
     },
     [],
   );
 
   const handleSensitiveData = React.useCallback(async () => {
     try {
       let sqliteStampedUserID,
         errorGettingStampedUserID = false;
       try {
         sqliteStampedUserID = await commCoreModule.getSQLiteStampedUserID();
       } catch (error) {
         errorGettingStampedUserID = true;
         console.log(
           `Error getting SQLite stamped user ID: ${
             getMessageForException(error) ?? 'unknown'
           }`,
         );
       }
       if (
         errorGettingStampedUserID ||
         shouldClearData(sqliteStampedUserID, currentLoggedInUserID)
       ) {
         await callClearSensitiveData('change in logged-in user credentials');
       }
       if (
         currentLoggedInUserID &&
         currentLoggedInUserID !== sqliteStampedUserID
       ) {
         await commCoreModule.stampSQLiteDBUserID(currentLoggedInUserID);
       }
     } catch (e) {
       if (isTaskCancelledError(e)) {
         return;
       }
       if (__DEV__) {
         throw e;
       }
       console.log(e);
       if (e.message !== 'clear_media_cache_failed') {
         commCoreModule.terminate();
       }
     }
   }, [callClearSensitiveData, currentLoggedInUserID]);
 
   React.useEffect(() => {
     if (!rehydrateConcluded) {
       return;
     }
 
     const databaseNeedsDeletion = commCoreModule.checkIfDatabaseNeedsDeletion();
     if (databaseNeedsDeletion) {
       void (async () => {
         try {
           await callClearSensitiveData('detecting corrupted database');
         } catch (e) {
           if (__DEV__) {
             throw e;
           }
           console.log(e);
           if (e.message !== 'clear_media_cache_failed') {
             commCoreModule.terminate();
           }
         }
         await recoverData(
           recoveryFromDataHandlerActionSources.corruptedDatabaseDeletion,
         );
       })();
       return;
     }
 
     const sensitiveDataHandled = handleSensitiveData();
     if (storeLoaded) {
       return;
     }
     if (!loggedIn) {
       dispatch({ type: setStoreLoadedActionType });
       return;
     }
     void (async () => {
       await Promise.all([
         sensitiveDataHandled,
         mediaCacheContext?.evictCache(),
       ]);
       try {
         const {
           threads,
           messages,
           drafts,
           messageStoreThreads,
           reports,
           users,
           keyservers,
           communities,
           integrityThreadHashes,
           syncedMetadata,
           auxUserInfos,
           threadActivityEntries,
           entries,
+          messageStoreLocalMessageInfos,
         } = await commCoreModule.getClientDBStore();
         const threadInfosFromDB =
           threadStoreOpsHandlers.translateClientDBData(threads);
         const reportsFromDB =
           reportStoreOpsHandlers.translateClientDBData(reports);
         const usersFromDB = userStoreOpsHandlers.translateClientDBData(users);
         const keyserverInfosFromDB =
           keyserverStoreOpsHandlers.translateClientDBData(keyservers);
         const communityInfosFromDB =
           communityStoreOpsHandlers.translateClientDBData(communities);
         const threadHashesFromDB =
           integrityStoreOpsHandlers.translateClientDBData(
             integrityThreadHashes,
           );
         const syncedMetadataFromDB =
           syncedMetadataStoreOpsHandlers.translateClientDBData(syncedMetadata);
         const auxUserInfosFromDB =
           auxUserStoreOpsHandlers.translateClientDBData(auxUserInfos);
         const threadActivityStoreFromDB =
           threadActivityStoreOpsHandlers.translateClientDBData(
             threadActivityEntries,
           );
         const entriesFromDB =
           entryStoreOpsHandlers.translateClientDBData(entries);
+        const localMessageInfosFromDB = translateClientDBLocalMessageInfos(
+          messageStoreLocalMessageInfos,
+        );
         dispatch({
           type: setClientDBStoreActionType,
           payload: {
             drafts,
             messages,
             threadStore: { threadInfos: threadInfosFromDB },
             currentUserID: currentLoggedInUserID,
             messageStoreThreads,
             reports: reportsFromDB,
             users: usersFromDB,
             keyserverInfos: keyserverInfosFromDB,
             communities: communityInfosFromDB,
             threadHashes: threadHashesFromDB,
             syncedMetadata: syncedMetadataFromDB,
             auxUserInfos: auxUserInfosFromDB,
             threadActivityStore: threadActivityStoreFromDB,
             entries: entriesFromDB,
+            messageStoreLocalMessageInfos: localMessageInfosFromDB,
           },
         });
       } catch (setStoreException) {
         if (isTaskCancelledError(setStoreException)) {
           dispatch({ type: setStoreLoadedActionType });
           return;
         }
         if (staffCanSee) {
           Alert.alert(
             'Error setting threadStore or messageStore',
             getMessageForException(setStoreException) ??
               '{no exception message}',
           );
         }
         await recoverData(
           recoveryFromDataHandlerActionSources.sqliteLoadFailure,
         );
       }
     })();
   }, [
     currentLoggedInUserID,
     handleSensitiveData,
     loggedIn,
     dispatch,
     rehydrateConcluded,
     staffCanSee,
     storeLoaded,
     recoverData,
     callClearSensitiveData,
     mediaCacheContext,
   ]);
 
   return null;
 }
 
 export { SQLiteDataHandler, clearSensitiveData };
diff --git a/web/shared-worker/utils/store.js b/web/shared-worker/utils/store.js
index df9f86b13..52637b317 100644
--- a/web/shared-worker/utils/store.js
+++ b/web/shared-worker/utils/store.js
@@ -1,261 +1,274 @@
 // @flow
 
 import { auxUserStoreOpsHandlers } from 'lib/ops/aux-user-store-ops.js';
 import { communityStoreOpsHandlers } from 'lib/ops/community-store-ops.js';
 import { entryStoreOpsHandlers } from 'lib/ops/entries-store-ops.js';
 import { integrityStoreOpsHandlers } from 'lib/ops/integrity-store-ops.js';
 import { keyserverStoreOpsHandlers } from 'lib/ops/keyserver-store-ops.js';
 import { messageStoreOpsHandlers } from 'lib/ops/message-store-ops.js';
 import { reportStoreOpsHandlers } from 'lib/ops/report-store-ops.js';
 import { syncedMetadataStoreOpsHandlers } from 'lib/ops/synced-metadata-store-ops.js';
 import { threadActivityStoreOpsHandlers } from 'lib/ops/thread-activity-store-ops.js';
 import { threadStoreOpsHandlers } from 'lib/ops/thread-store-ops.js';
 import { userStoreOpsHandlers } from 'lib/ops/user-store-ops.js';
 import { canUseDatabaseOnWeb } from 'lib/shared/web-database.js';
 import type {
   ClientStore,
   StoreOperations,
 } from 'lib/types/store-ops-types.js';
+import { translateClientDBLocalMessageInfos } from 'lib/utils/message-ops-utils.js';
 import { entries } from 'lib/utils/objects.js';
 
 import { defaultWebState } from '../../redux/default-state.js';
 import { workerRequestMessageTypes } from '../../types/worker-types.js';
 import { getCommSharedWorker } from '../shared-worker-provider.js';
 
 async function getClientDBStore(): Promise<ClientStore> {
   const sharedWorker = await getCommSharedWorker();
   let result: ClientStore = {
     currentUserID: null,
     drafts: [],
     messages: null,
     threadStore: null,
     messageStoreThreads: null,
     reports: null,
     users: null,
     keyserverInfos: defaultWebState.keyserverStore.keyserverInfos,
     communityInfos: null,
     threadHashes: null,
     syncedMetadata: null,
     auxUserInfos: null,
     threadActivityStore: null,
     entries: null,
     messageStoreLocalMessageInfos: null,
   };
   const data = await sharedWorker.schedule({
     type: workerRequestMessageTypes.GET_CLIENT_STORE,
   });
   if (data?.store?.drafts) {
     result = {
       ...result,
       drafts: data.store.drafts,
     };
   }
   if (data?.store?.reports) {
     result = {
       ...result,
       reports: reportStoreOpsHandlers.translateClientDBData(data.store.reports),
     };
   }
   if (data?.store?.threads && data.store.threads.length > 0) {
     result = {
       ...result,
       threadStore: {
         threadInfos: threadStoreOpsHandlers.translateClientDBData(
           data.store.threads,
         ),
       },
     };
   }
   if (data?.store?.keyservers?.length) {
     result = {
       ...result,
       keyserverInfos: keyserverStoreOpsHandlers.translateClientDBData(
         data.store.keyservers,
       ),
     };
   }
   if (data?.store?.communities) {
     result = {
       ...result,
       communityInfos: communityStoreOpsHandlers.translateClientDBData(
         data.store.communities,
       ),
     };
   }
   if (data?.store?.integrityThreadHashes) {
     result = {
       ...result,
       threadHashes: integrityStoreOpsHandlers.translateClientDBData(
         data.store.integrityThreadHashes,
       ),
     };
   }
   if (data?.store?.syncedMetadata) {
     result = {
       ...result,
       syncedMetadata: syncedMetadataStoreOpsHandlers.translateClientDBData(
         data.store.syncedMetadata,
       ),
     };
   }
   if (data?.store?.auxUserInfos) {
     result = {
       ...result,
       auxUserInfos: auxUserStoreOpsHandlers.translateClientDBData(
         data.store.auxUserInfos,
       ),
     };
   }
   if (data?.store?.users && data.store.users.length > 0) {
     result = {
       ...result,
       users: userStoreOpsHandlers.translateClientDBData(data.store.users),
     };
   }
   if (data?.store?.messages && data.store.messages.length > 0) {
     result = {
       ...result,
       messages: data.store.messages,
     };
   }
   if (
     data?.store?.messageStoreThreads &&
     data.store.messageStoreThreads.length > 0
   ) {
     result = {
       ...result,
       messageStoreThreads: data.store.messageStoreThreads,
     };
   }
   if (
     data?.store?.threadActivityEntries &&
     data.store.threadActivityEntries.length > 0
   ) {
     result = {
       ...result,
       threadActivityStore: threadActivityStoreOpsHandlers.translateClientDBData(
         data.store.threadActivityEntries,
       ),
     };
   }
 
   if (data?.store?.entries && data.store.entries.length > 0) {
     result = {
       ...result,
       entries: entryStoreOpsHandlers.translateClientDBData(data.store.entries),
     };
   }
+
+  if (
+    data?.store?.messageStoreLocalMessageInfos &&
+    data.store.messageStoreLocalMessageInfos.length > 0
+  ) {
+    result = {
+      ...result,
+      messageStoreLocalMessageInfos: translateClientDBLocalMessageInfos(
+        data.store.messageStoreLocalMessageInfos,
+      ),
+    };
+  }
   return result;
 }
 
 async function processDBStoreOperations(
   storeOperations: StoreOperations,
   userID?: ?string,
 ): Promise<void> {
   const {
     draftStoreOperations,
     threadStoreOperations,
     reportStoreOperations,
     keyserverStoreOperations,
     communityStoreOperations,
     integrityStoreOperations,
     syncedMetadataStoreOperations,
     auxUserStoreOperations,
     userStoreOperations,
     messageStoreOperations,
     threadActivityStoreOperations,
     outboundP2PMessages,
     entryStoreOperations,
   } = storeOperations;
 
   const canUseDatabase = canUseDatabaseOnWeb(userID);
 
   const convertedThreadStoreOperations = canUseDatabase
     ? threadStoreOpsHandlers.convertOpsToClientDBOps(threadStoreOperations)
     : [];
   const convertedReportStoreOperations =
     reportStoreOpsHandlers.convertOpsToClientDBOps(reportStoreOperations);
   const convertedKeyserverStoreOperations =
     keyserverStoreOpsHandlers.convertOpsToClientDBOps(keyserverStoreOperations);
   const convertedCommunityStoreOperations =
     communityStoreOpsHandlers.convertOpsToClientDBOps(communityStoreOperations);
   const convertedIntegrityStoreOperations =
     integrityStoreOpsHandlers.convertOpsToClientDBOps(integrityStoreOperations);
   const convertedSyncedMetadataStoreOperations =
     syncedMetadataStoreOpsHandlers.convertOpsToClientDBOps(
       syncedMetadataStoreOperations,
     );
   const convertedAuxUserStoreOperations =
     auxUserStoreOpsHandlers.convertOpsToClientDBOps(auxUserStoreOperations);
   const convertedUserStoreOperations =
     userStoreOpsHandlers.convertOpsToClientDBOps(userStoreOperations);
   const convertedMessageStoreOperations =
     messageStoreOpsHandlers.convertOpsToClientDBOps(messageStoreOperations);
   const convertedThreadActivityStoreOperations =
     threadActivityStoreOpsHandlers.convertOpsToClientDBOps(
       threadActivityStoreOperations,
     );
   const convertedEntryStoreOperations =
     entryStoreOpsHandlers.convertOpsToClientDBOps(entryStoreOperations);
 
   if (
     convertedThreadStoreOperations.length === 0 &&
     convertedReportStoreOperations.length === 0 &&
     (!draftStoreOperations || draftStoreOperations.length === 0) &&
     convertedKeyserverStoreOperations.length === 0 &&
     convertedCommunityStoreOperations.length === 0 &&
     convertedIntegrityStoreOperations.length === 0 &&
     convertedSyncedMetadataStoreOperations.length === 0 &&
     convertedAuxUserStoreOperations.length === 0 &&
     convertedUserStoreOperations.length === 0 &&
     convertedMessageStoreOperations.length === 0 &&
     convertedThreadActivityStoreOperations.length === 0 &&
     convertedEntryStoreOperations.length === 0
   ) {
     return;
   }
 
   const sharedWorker = await getCommSharedWorker();
   const isSupported = await sharedWorker.isSupported();
   if (!isSupported) {
     return;
   }
   try {
     await sharedWorker.schedule({
       type: workerRequestMessageTypes.PROCESS_STORE_OPERATIONS,
       storeOperations: {
         draftStoreOperations,
         reportStoreOperations: convertedReportStoreOperations,
         threadStoreOperations: convertedThreadStoreOperations,
         keyserverStoreOperations: convertedKeyserverStoreOperations,
         communityStoreOperations: convertedCommunityStoreOperations,
         integrityStoreOperations: convertedIntegrityStoreOperations,
         syncedMetadataStoreOperations: convertedSyncedMetadataStoreOperations,
         auxUserStoreOperations: convertedAuxUserStoreOperations,
         userStoreOperations: convertedUserStoreOperations,
         messageStoreOperations: convertedMessageStoreOperations,
         threadActivityStoreOperations: convertedThreadActivityStoreOperations,
         outboundP2PMessages,
         entryStoreOperations: convertedEntryStoreOperations,
       },
     });
   } catch (e) {
     console.log(e);
     if (canUseDatabase) {
       window.alert(e.message);
       if (
         entries(storeOperations).some(
           ([key, ops]) =>
             key !== 'draftStoreOperations' &&
             key !== 'reportStoreOperations' &&
             ops.length > 0,
         )
       ) {
         await sharedWorker.init({ clearDatabase: true, markAsCorrupted: true });
         location.reload();
       }
     }
   }
 }
 
 export { getClientDBStore, processDBStoreOperations };