diff --git a/lib/selectors/chat-selectors.js b/lib/selectors/chat-selectors.js
--- a/lib/selectors/chat-selectors.js
+++ b/lib/selectors/chat-selectors.js
@@ -51,18 +51,15 @@
 import memoize2 from '../utils/memoize.js';
 import { useSelector } from '../utils/redux-utils.js';
 
-type ChatThreadItemBase = {
+export type ChatThreadItem = {
   +type: 'chatThreadItem',
   +threadInfo: ThreadInfo,
   +mostRecentNonLocalMessage: ?string,
   +sidebars: $ReadOnlyArray<SidebarItem>,
   +pendingPersonalThreadUserInfo?: UserInfo,
-};
-export type ChatThreadItem = $ReadOnly<{
-  ...ChatThreadItemBase,
   +lastUpdatedTime: number,
   +lastUpdatedTimeIncludingSidebars: number,
-}>;
+};
 
 const messageInfoSelector: (state: BaseAppState<>) => {
   +[id: string]: ?MessageInfo,
@@ -82,13 +79,13 @@
   );
 }
 
-type CreatedChatThreadItem = $ReadOnly<{
-  ...ChatThreadItemBase,
-  +lastUpdatedAtLeastTime: number,
+type CreatedChatThreadItem = {
+  +threadInfo: ThreadInfo,
   +lastUpdatedAtLeastTimeIncludingSidebars: number,
   +lastUpdatedAtMostTimeIncludingSidebars: number,
+  +initialChatThreadItem: ChatThreadItem,
   +getFinalChatThreadItem: () => Promise<ChatThreadItem>,
-}>;
+};
 function useCreateChatThreadItem(): ThreadInfo => CreatedChatThreadItem {
   const messageInfos = useSelector(messageInfoSelector);
   const sidebarInfos = useSidebarInfos();
@@ -153,13 +150,19 @@
           : lastUpdatedAtMostTime;
 
       const allInitialSidebarItems = getAllInitialSidebarItems(sidebars);
-
-      return {
+      const initialChatThreadItem = {
         ...chatThreadItemBase,
         sidebars: getSidebarItems(allInitialSidebarItems),
-        lastUpdatedAtLeastTime,
+        lastUpdatedTime: lastUpdatedAtLeastTime,
+        lastUpdatedTimeIncludingSidebars:
+          lastUpdatedAtLeastTimeIncludingSidebars,
+      };
+
+      return {
+        threadInfo,
         lastUpdatedAtLeastTimeIncludingSidebars,
         lastUpdatedAtMostTimeIncludingSidebars,
+        initialChatThreadItem,
         getFinalChatThreadItem,
       };
     },
@@ -194,21 +197,9 @@
 
   const initialChatThreadItems = React.useMemo(
     () =>
-      createdChatThreadItems.map(createdChatThreadItem => {
-        const {
-          lastUpdatedAtLeastTime,
-          lastUpdatedAtLeastTimeIncludingSidebars,
-          lastUpdatedAtMostTimeIncludingSidebars,
-          getFinalChatThreadItem,
-          ...rest
-        } = createdChatThreadItem;
-        return {
-          ...rest,
-          lastUpdatedTime: lastUpdatedAtLeastTime,
-          lastUpdatedTimeIncludingSidebars:
-            lastUpdatedAtLeastTimeIncludingSidebars,
-        };
-      }),
+      createdChatThreadItems.map(
+        createdChatThreadItem => createdChatThreadItem.initialChatThreadItem,
+      ),
     [createdChatThreadItems],
   );