diff --git a/lib/reducers/entry-reducer.js b/lib/reducers/entry-reducer.js
index 22ab52373..3e601d824 100644
--- a/lib/reducers/entry-reducer.js
+++ b/lib/reducers/entry-reducer.js
@@ -1,671 +1,673 @@
 // @flow
 
 import invariant from 'invariant';
 import _filter from 'lodash/fp/filter.js';
 import _flow from 'lodash/fp/flow.js';
 import _groupBy from 'lodash/fp/groupBy.js';
 import _isEqual from 'lodash/fp/isEqual.js';
 import _map from 'lodash/fp/map.js';
 import _mapKeys from 'lodash/fp/mapKeys.js';
 import _mapValues from 'lodash/fp/mapValues.js';
 import _omitBy from 'lodash/fp/omitBy.js';
 import _pickBy from 'lodash/fp/pickBy.js';
 import _sortBy from 'lodash/fp/sortBy.js';
 import _union from 'lodash/fp/union.js';
 
 import {
   fetchEntriesActionTypes,
   updateCalendarQueryActionTypes,
   createLocalEntryActionType,
   createEntryActionTypes,
   saveEntryActionTypes,
   concurrentModificationResetActionType,
   deleteEntryActionTypes,
   fetchRevisionsForEntryActionTypes,
   restoreEntryActionTypes,
 } from '../actions/entry-actions.js';
 import { siweAuthActionTypes } from '../actions/siwe-actions.js';
 import {
   deleteThreadActionTypes,
   leaveThreadActionTypes,
   joinThreadActionTypes,
   changeThreadSettingsActionTypes,
   removeUsersFromThreadActionTypes,
   changeThreadMemberRolesActionTypes,
   newThreadActionTypes,
 } from '../actions/thread-actions.js';
 import {
   logOutActionTypes,
   deleteAccountActionTypes,
   logInActionTypes,
 } from '../actions/user-actions.js';
 import { entryID } from '../shared/entry-utils.js';
 import { stateSyncSpecs } from '../shared/state-sync/state-sync-specs.js';
 import { threadInFilterList } from '../shared/thread-utils.js';
 import { updateSpecs } from '../shared/updates/update-specs.js';
 import type { RawEntryInfo, EntryStore } from '../types/entry-types.js';
 import type { BaseAction } from '../types/redux-types.js';
 import { type ClientEntryInconsistencyReportCreationRequest } from '../types/report-types.js';
 import {
   serverRequestTypes,
   processServerRequestsActionType,
 } from '../types/request-types.js';
 import {
   fullStateSyncActionType,
   incrementalStateSyncActionType,
 } from '../types/socket-types.js';
 import { type RawThreadInfos } from '../types/thread-types.js';
 import {
   type ClientUpdateInfo,
   processUpdatesActionType,
 } from '../types/update-types.js';
 import { setNewSessionActionType } from '../utils/action-utils.js';
 import { dateString } from '../utils/date-utils.js';
 import { values } from '../utils/objects.js';
 
 function daysToEntriesFromEntryInfos(
   entryInfos: $ReadOnlyArray<RawEntryInfo>,
 ): { [day: string]: string[] } {
   return _flow(
     _sortBy((['id', 'localID']: $ReadOnlyArray<string>)),
     _groupBy((entryInfo: RawEntryInfo) =>
       dateString(entryInfo.year, entryInfo.month, entryInfo.day),
     ),
     _mapValues((entryInfoGroup: $ReadOnlyArray<RawEntryInfo>) =>
       _map(entryID)(entryInfoGroup),
     ),
   )([...entryInfos]);
 }
 
 function filterExistingDaysToEntriesWithNewEntryInfos(
   oldDaysToEntries: { +[id: string]: string[] },
   newEntryInfos: { +[id: string]: RawEntryInfo },
 ) {
   return _mapValues((entryIDs: string[]) =>
     _filter((id: string) => newEntryInfos[id])(entryIDs),
   )(oldDaysToEntries);
 }
 
 function mergeNewEntryInfos(
   currentEntryInfos: { +[id: string]: RawEntryInfo },
   currentDaysToEntries: ?{ +[day: string]: string[] },
   newEntryInfos: $ReadOnlyArray<RawEntryInfo>,
   threadInfos: RawThreadInfos,
 ) {
   const mergedEntryInfos: { [string]: RawEntryInfo } = {};
   let someEntryUpdated = false;
 
   for (const rawEntryInfo of newEntryInfos) {
     const serverID = rawEntryInfo.id;
     invariant(serverID, 'new entryInfos should have serverID');
     const currentEntryInfo = currentEntryInfos[serverID];
     let newEntryInfo;
     if (currentEntryInfo && currentEntryInfo.localID) {
       newEntryInfo = {
         id: serverID,
         // Try to preserve localIDs. This is because we use them as React
         // keys and changing React keys leads to loss of component state.
         localID: currentEntryInfo.localID,
         threadID: rawEntryInfo.threadID,
         text: rawEntryInfo.text,
         year: rawEntryInfo.year,
         month: rawEntryInfo.month,
         day: rawEntryInfo.day,
         creationTime: rawEntryInfo.creationTime,
         creatorID: rawEntryInfo.creatorID,
         deleted: rawEntryInfo.deleted,
       };
     } else {
       newEntryInfo = {
         id: serverID,
         threadID: rawEntryInfo.threadID,
         text: rawEntryInfo.text,
         year: rawEntryInfo.year,
         month: rawEntryInfo.month,
         day: rawEntryInfo.day,
         creationTime: rawEntryInfo.creationTime,
         creatorID: rawEntryInfo.creatorID,
         deleted: rawEntryInfo.deleted,
       };
     }
 
     if (_isEqual(currentEntryInfo)(newEntryInfo)) {
       mergedEntryInfos[serverID] = currentEntryInfo;
     } else {
       mergedEntryInfos[serverID] = newEntryInfo;
       someEntryUpdated = true;
     }
   }
 
   for (const id in currentEntryInfos) {
     const newEntryInfo = mergedEntryInfos[id];
     if (!newEntryInfo) {
       mergedEntryInfos[id] = currentEntryInfos[id];
     }
   }
 
   for (const id in mergedEntryInfos) {
     const entryInfo = mergedEntryInfos[id];
     if (!threadInFilterList(threadInfos[entryInfo.threadID])) {
       someEntryUpdated = true;
       delete mergedEntryInfos[id];
     }
   }
 
   const daysToEntries =
     !currentDaysToEntries || someEntryUpdated
       ? daysToEntriesFromEntryInfos(values(mergedEntryInfos))
       : currentDaysToEntries;
   const entryInfos = someEntryUpdated ? mergedEntryInfos : currentEntryInfos;
   return [entryInfos, daysToEntries];
 }
 
 function reduceEntryInfos(
   entryStore: EntryStore,
   action: BaseAction,
   newThreadInfos: RawThreadInfos,
 ): [EntryStore, $ReadOnlyArray<ClientEntryInconsistencyReportCreationRequest>] {
   const { entryInfos, daysToEntries, lastUserInteractionCalendar } = entryStore;
   if (
     action.type === logOutActionTypes.success ||
     action.type === deleteAccountActionTypes.success ||
     action.type === deleteThreadActionTypes.success ||
     action.type === leaveThreadActionTypes.success
   ) {
     const authorizedThreadInfos = _pickBy(threadInFilterList)(newThreadInfos);
     const newEntryInfos = _pickBy(
       (entry: RawEntryInfo) => authorizedThreadInfos[entry.threadID],
     )(entryInfos);
     const newLastUserInteractionCalendar =
       action.type === logOutActionTypes.success ||
       action.type === deleteAccountActionTypes.success
         ? 0
         : lastUserInteractionCalendar;
     if (Object.keys(newEntryInfos).length === Object.keys(entryInfos).length) {
       return [
         {
           entryInfos,
           daysToEntries,
           lastUserInteractionCalendar: newLastUserInteractionCalendar,
         },
         [],
       ];
     }
     const newDaysToEntries = filterExistingDaysToEntriesWithNewEntryInfos(
       daysToEntries,
       newEntryInfos,
     );
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries: newDaysToEntries,
         lastUserInteractionCalendar: newLastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === setNewSessionActionType) {
     const authorizedThreadInfos = _pickBy(threadInFilterList)(newThreadInfos);
     const newEntryInfos = _pickBy(
       (entry: RawEntryInfo) => authorizedThreadInfos[entry.threadID],
     )(entryInfos);
     const newDaysToEntries = filterExistingDaysToEntriesWithNewEntryInfos(
       daysToEntries,
       newEntryInfos,
     );
     const newLastUserInteractionCalendar = action.payload.sessionChange
       .cookieInvalidated
       ? 0
       : lastUserInteractionCalendar;
     if (Object.keys(newEntryInfos).length === Object.keys(entryInfos).length) {
       return [
         {
           entryInfos,
           daysToEntries,
           lastUserInteractionCalendar: newLastUserInteractionCalendar,
         },
         [],
       ];
     }
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries: newDaysToEntries,
         lastUserInteractionCalendar: newLastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === fetchEntriesActionTypes.success) {
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       action.payload.rawEntryInfos,
       newThreadInfos,
     );
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (
     action.type === updateCalendarQueryActionTypes.started &&
     action.payload &&
     action.payload.calendarQuery
   ) {
     return [
       {
         entryInfos,
         daysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
   } else if (action.type === updateCalendarQueryActionTypes.success) {
     const newLastUserInteractionCalendar = action.payload.calendarQuery
       ? Date.now()
       : lastUserInteractionCalendar;
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       action.payload.rawEntryInfos,
       newThreadInfos,
     );
     const deletionMarkedEntryInfos = markDeletedEntries(
       updatedEntryInfos,
       action.payload.deletedEntryIDs,
     );
     return [
       {
         entryInfos: deletionMarkedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar: newLastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === createLocalEntryActionType) {
     const entryInfo = action.payload;
     const localID = entryInfo.localID;
     invariant(localID, 'localID should be set in CREATE_LOCAL_ENTRY');
     const newEntryInfos = {
       ...entryInfos,
       [(localID: string)]: entryInfo,
     };
     const dayString = dateString(
       entryInfo.year,
       entryInfo.month,
       entryInfo.day,
     );
     const newDaysToEntries = {
       ...daysToEntries,
       [dayString]: _union([localID])(daysToEntries[dayString]),
     };
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries: newDaysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
   } else if (action.type === createEntryActionTypes.success) {
     const localID = action.payload.localID;
     const serverID = action.payload.entryID;
     // If an entry with this serverID already got into the store somehow
     // (likely through an unrelated request), we need to dedup them.
     let rekeyedEntryInfos;
     if (entryInfos[serverID]) {
       // It's fair to assume the serverID entry is newer than the localID
       // entry, and this probably won't happen often, so for now we can just
       // keep the serverID entry.
       rekeyedEntryInfos = _omitBy(
         (candidate: RawEntryInfo) =>
           !candidate.id && candidate.localID === localID,
       )(entryInfos);
     } else if (entryInfos[localID]) {
       rekeyedEntryInfos = _mapKeys((oldKey: string) =>
         entryInfos[oldKey].localID === localID ? serverID : oldKey,
       )(entryInfos);
     } else {
       // This happens if the entry is deauthorized before it's saved
       return [entryStore, []];
     }
 
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       rekeyedEntryInfos,
       null,
       mergeUpdateEntryInfos([], action.payload.updatesResult.viewerUpdates),
       newThreadInfos,
     );
 
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
   } else if (action.type === saveEntryActionTypes.success) {
     const serverID = action.payload.entryID;
     if (
       !entryInfos[serverID] ||
       !threadInFilterList(newThreadInfos[entryInfos[serverID].threadID])
     ) {
       // This happens if the entry is deauthorized before it's saved
       return [entryStore, []];
     }
 
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       mergeUpdateEntryInfos([], action.payload.updatesResult.viewerUpdates),
       newThreadInfos,
     );
 
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
   } else if (action.type === concurrentModificationResetActionType) {
     const { payload } = action;
     if (
       !entryInfos[payload.id] ||
       !threadInFilterList(newThreadInfos[entryInfos[payload.id].threadID])
     ) {
       // This happens if the entry is deauthorized before it's restored
       return [entryStore, []];
     }
     const newEntryInfos = {
       ...entryInfos,
       [payload.id]: {
         ...entryInfos[payload.id],
         text: payload.dbText,
       },
     };
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === deleteEntryActionTypes.started) {
     const payload = action.payload;
     const id =
       payload.serverID && entryInfos[payload.serverID]
         ? payload.serverID
         : payload.localID;
     invariant(id, 'either serverID or localID should be set');
     const newEntryInfos = {
       ...entryInfos,
       [(id: string)]: {
         ...entryInfos[id],
         deleted: true,
       },
     };
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
-  } else if (action.type === deleteEntryActionTypes.success && action.payload) {
+  } else if (action.type === deleteEntryActionTypes.success) {
     const { payload } = action;
-    const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
-      entryInfos,
-      daysToEntries,
-      mergeUpdateEntryInfos([], payload.updatesResult.viewerUpdates),
-      newThreadInfos,
-    );
-    return [
-      {
-        entryInfos: updatedEntryInfos,
-        daysToEntries: updatedDaysToEntries,
-        lastUserInteractionCalendar,
-      },
-      [],
-    ];
+    if (payload) {
+      const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
+        entryInfos,
+        daysToEntries,
+        mergeUpdateEntryInfos([], payload.updatesResult.viewerUpdates),
+        newThreadInfos,
+      );
+      return [
+        {
+          entryInfos: updatedEntryInfos,
+          daysToEntries: updatedDaysToEntries,
+          lastUserInteractionCalendar,
+        },
+        [],
+      ];
+    }
   } else if (action.type === fetchRevisionsForEntryActionTypes.success) {
     const id = action.payload.entryID;
     if (
       !entryInfos[id] ||
       !threadInFilterList(newThreadInfos[entryInfos[id].threadID])
     ) {
       // This happens if the entry is deauthorized before it's restored
       return [entryStore, []];
     }
     // Make sure the entry is in sync with its latest revision
     const newEntryInfos = {
       ...entryInfos,
       [id]: {
         ...entryInfos[id],
         text: action.payload.text,
         deleted: action.payload.deleted,
       },
     };
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === restoreEntryActionTypes.success) {
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       mergeUpdateEntryInfos([], action.payload.updatesResult.viewerUpdates),
       newThreadInfos,
     );
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar: Date.now(),
       },
       [],
     ];
   } else if (
     action.type === logInActionTypes.success ||
     action.type === siweAuthActionTypes.success
   ) {
     const { calendarResult } = action.payload;
     if (calendarResult) {
       const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
         entryInfos,
         daysToEntries,
         calendarResult.rawEntryInfos,
         newThreadInfos,
       );
       return [
         {
           entryInfos: updatedEntryInfos,
           daysToEntries: updatedDaysToEntries,
           lastUserInteractionCalendar,
         },
         [],
       ];
     }
   } else if (action.type === incrementalStateSyncActionType) {
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       mergeUpdateEntryInfos(
         action.payload.deltaEntryInfos,
         action.payload.updatesResult.newUpdates,
       ),
       newThreadInfos,
     );
     const deletionMarkedEntryInfos = markDeletedEntries(
       updatedEntryInfos,
       action.payload.deletedEntryIDs,
     );
     return [
       {
         entryInfos: deletionMarkedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (
     action.type === processUpdatesActionType ||
     action.type === joinThreadActionTypes.success ||
     action.type === newThreadActionTypes.success
   ) {
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       mergeUpdateEntryInfos([], action.payload.updatesResult.newUpdates),
       newThreadInfos,
     );
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === fullStateSyncActionType) {
     const [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
       entryInfos,
       daysToEntries,
       action.payload.rawEntryInfos,
       newThreadInfos,
     );
     return [
       {
         entryInfos: updatedEntryInfos,
         daysToEntries: updatedDaysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (
     action.type === changeThreadSettingsActionTypes.success ||
     action.type === removeUsersFromThreadActionTypes.success ||
     action.type === changeThreadMemberRolesActionTypes.success
   ) {
     const authorizedThreadInfos = _pickBy(threadInFilterList)(newThreadInfos);
     const newEntryInfos = _pickBy(
       (entry: RawEntryInfo) => authorizedThreadInfos[entry.threadID],
     )(entryInfos);
     if (Object.keys(newEntryInfos).length === Object.keys(entryInfos).length) {
       return [entryStore, []];
     }
     const newDaysToEntries = filterExistingDaysToEntriesWithNewEntryInfos(
       daysToEntries,
       newEntryInfos,
     );
     return [
       {
         entryInfos: newEntryInfos,
         daysToEntries: newDaysToEntries,
         lastUserInteractionCalendar,
       },
       [],
     ];
   } else if (action.type === processServerRequestsActionType) {
     const checkStateRequest = action.payload.serverRequests.find(
       candidate => candidate.type === serverRequestTypes.CHECK_STATE,
     );
     if (!checkStateRequest || !checkStateRequest.stateChanges) {
       return [entryStore, []];
     }
     const { rawEntryInfos, deleteEntryIDs } = checkStateRequest.stateChanges;
     if (!rawEntryInfos && !deleteEntryIDs) {
       return [entryStore, []];
     }
 
     const updatedEntryInfos: { [string]: RawEntryInfo } = { ...entryInfos };
     if (deleteEntryIDs) {
       for (const deleteEntryID of deleteEntryIDs) {
         delete updatedEntryInfos[deleteEntryID];
       }
     }
 
     let mergedEntryInfos: { +[string]: RawEntryInfo };
     let mergedDaysToEntries;
     if (rawEntryInfos) {
       [mergedEntryInfos, mergedDaysToEntries] = mergeNewEntryInfos(
         updatedEntryInfos,
         null,
         rawEntryInfos,
         newThreadInfos,
       );
     } else {
       mergedEntryInfos = updatedEntryInfos;
       mergedDaysToEntries = daysToEntriesFromEntryInfos(
         values(updatedEntryInfos),
       );
     }
 
     const newInconsistencies = stateSyncSpecs.entries.findStoreInconsistencies(
       action,
       entryInfos,
       mergedEntryInfos,
     );
 
     return [
       {
         entryInfos: mergedEntryInfos,
         daysToEntries: mergedDaysToEntries,
         lastUserInteractionCalendar,
       },
       newInconsistencies,
     ];
   }
   return [entryStore, []];
 }
 
 function mergeUpdateEntryInfos(
   entryInfos: $ReadOnlyArray<RawEntryInfo>,
   newUpdates: $ReadOnlyArray<ClientUpdateInfo>,
 ): RawEntryInfo[] {
   const entryIDs = new Set(
     entryInfos.map(entryInfo => entryInfo.id).filter(Boolean),
   );
   const mergedEntryInfos = [...entryInfos];
   for (const updateInfo of newUpdates) {
     updateSpecs[updateInfo.type].mergeEntryInfos?.(
       entryIDs,
       mergedEntryInfos,
       updateInfo,
     );
   }
   return mergedEntryInfos;
 }
 
 function markDeletedEntries(
   entryInfos: { +[id: string]: RawEntryInfo },
   deletedEntryIDs: $ReadOnlyArray<string>,
 ): { +[id: string]: RawEntryInfo } {
   let result = entryInfos;
   for (const deletedEntryID of deletedEntryIDs) {
     const entryInfo = entryInfos[deletedEntryID];
     if (!entryInfo || entryInfo.deleted) {
       continue;
     }
     result = {
       ...result,
       [deletedEntryID]: {
         ...entryInfo,
         deleted: true,
       },
     };
   }
   return result;
 }
 
 export { daysToEntriesFromEntryInfos, reduceEntryInfos };
diff --git a/lib/reducers/nav-reducer.js b/lib/reducers/nav-reducer.js
index 27aeec774..fa99cf6bb 100644
--- a/lib/reducers/nav-reducer.js
+++ b/lib/reducers/nav-reducer.js
@@ -1,44 +1,42 @@
 // @flow
 
 import { updateCalendarQueryActionTypes } from '../actions/entry-actions.js';
 import { siweAuthActionTypes } from '../actions/siwe-actions.js';
 import {
   logInActionTypes,
   registerActionTypes,
 } from '../actions/user-actions.js';
 import type { BaseNavInfo } from '../types/nav-types.js';
 import type { BaseAction } from '../types/redux-types.js';
 import {
   fullStateSyncActionType,
   incrementalStateSyncActionType,
 } from '../types/socket-types.js';
 
 export default function reduceBaseNavInfo<T: BaseNavInfo>(
   state: T,
   action: BaseAction,
 ): T {
   if (
     action.type === logInActionTypes.started ||
     action.type === siweAuthActionTypes.started ||
     action.type === registerActionTypes.started ||
     action.type === fullStateSyncActionType ||
     action.type === incrementalStateSyncActionType
   ) {
     const { startDate, endDate } = action.payload.calendarQuery;
     return { ...state, startDate, endDate };
-  } else if (
-    action.type === updateCalendarQueryActionTypes.started &&
-    action.payload &&
-    action.payload.calendarQuery
-  ) {
-    const { startDate, endDate } = action.payload.calendarQuery;
-    return { ...state, startDate, endDate };
+  } else if (action.type === updateCalendarQueryActionTypes.started) {
+    if (action.payload && action.payload.calendarQuery) {
+      const { startDate, endDate } = action.payload.calendarQuery;
+      return { ...state, startDate, endDate };
+    }
   } else if (
     action.type === updateCalendarQueryActionTypes.success &&
     !action.payload.calendarQueryAlreadyUpdated
   ) {
     const { startDate, endDate } = action.payload.calendarQuery;
     return { ...state, startDate, endDate };
   }
   return state;
 }
diff --git a/lib/reducers/user-reducer.js b/lib/reducers/user-reducer.js
index 6b356d814..adb395534 100644
--- a/lib/reducers/user-reducer.js
+++ b/lib/reducers/user-reducer.js
@@ -1,415 +1,411 @@
 // @flow
 
 import _isEqual from 'lodash/fp/isEqual.js';
 import _keyBy from 'lodash/fp/keyBy.js';
 
 import { setClientDBStoreActionType } from '../actions/client-db-store-actions.js';
 import { siweAuthActionTypes } from '../actions/siwe-actions.js';
 import {
   joinThreadActionTypes,
   newThreadActionTypes,
 } from '../actions/thread-actions.js';
 import {
   logOutActionTypes,
   deleteAccountActionTypes,
   logInActionTypes,
   registerActionTypes,
   setUserSettingsActionTypes,
   updateUserAvatarActionTypes,
   resetUserStateActionType,
 } from '../actions/user-actions.js';
 import {
   convertUserInfosToReplaceUserOps,
   type UserStoreOperation,
   userStoreOpsHandlers,
 } from '../ops/user-store-ops.js';
 import { stateSyncSpecs } from '../shared/state-sync/state-sync-specs.js';
 import { updateSpecs } from '../shared/updates/update-specs.js';
 import type { BaseAction } from '../types/redux-types.js';
 import type { ClientUserInconsistencyReportCreationRequest } from '../types/report-types.js';
 import {
   serverRequestTypes,
   processServerRequestsActionType,
 } from '../types/request-types.js';
 import {
   fullStateSyncActionType,
   incrementalStateSyncActionType,
 } from '../types/socket-types.js';
 import { updateTypes } from '../types/update-types-enum.js';
 import { processUpdatesActionType } from '../types/update-types.js';
 import type { ClientUpdateInfo } from '../types/update-types.js';
 import type {
   CurrentUserInfo,
   UserInfos,
   UserStore,
 } from '../types/user-types.js';
 import { setNewSessionActionType } from '../utils/action-utils.js';
 import { getMessageForException } from '../utils/errors.js';
 import { assertObjectsAreEqual } from '../utils/objects.js';
 
 function reduceCurrentUserInfo(
   state: ?CurrentUserInfo,
   action: BaseAction,
 ): ?CurrentUserInfo {
   if (
     action.type === logInActionTypes.success ||
     action.type === siweAuthActionTypes.success ||
     action.type === registerActionTypes.success ||
     action.type === logOutActionTypes.success ||
     action.type === deleteAccountActionTypes.success
   ) {
     if (!_isEqual(action.payload.currentUserInfo)(state)) {
       return action.payload.currentUserInfo;
     }
   } else if (
     action.type === setNewSessionActionType &&
     action.payload.sessionChange.currentUserInfo
   ) {
     const { sessionChange } = action.payload;
     if (!_isEqual(sessionChange.currentUserInfo)(state)) {
       return sessionChange.currentUserInfo;
     }
   } else if (action.type === fullStateSyncActionType) {
     const { currentUserInfo } = action.payload;
     if (!_isEqual(currentUserInfo)(state)) {
       return currentUserInfo;
     }
   } else if (
     action.type === incrementalStateSyncActionType ||
     action.type === processUpdatesActionType
   ) {
     return action.payload.updatesResult.newUpdates.reduce(
       (reducedState, update) => {
         const { reduceCurrentUser } = updateSpecs[update.type];
         return reduceCurrentUser
           ? reduceCurrentUser(reducedState, update)
           : reducedState;
       },
       state,
     );
   } else if (action.type === processServerRequestsActionType) {
     const checkStateRequest = action.payload.serverRequests.find(
       candidate => candidate.type === serverRequestTypes.CHECK_STATE,
     );
-    if (
-      checkStateRequest &&
-      checkStateRequest.stateChanges &&
-      checkStateRequest.stateChanges.currentUserInfo &&
-      !_isEqual(checkStateRequest.stateChanges.currentUserInfo)(state)
-    ) {
-      return checkStateRequest.stateChanges.currentUserInfo;
+    const newCurrentUserInfo = checkStateRequest?.stateChanges?.currentUserInfo;
+    if (newCurrentUserInfo && !_isEqual(newCurrentUserInfo)(state)) {
+      return newCurrentUserInfo;
     }
   } else if (
     action.type === updateUserAvatarActionTypes.success &&
     state &&
     !state.anonymous
   ) {
     const { viewerUpdates } = action.payload.updates;
     for (const update of viewerUpdates) {
       if (
         update.type === updateTypes.UPDATE_CURRENT_USER &&
         !_isEqual(update.currentUserInfo.avatar)(state.avatar)
       ) {
         return {
           ...state,
           avatar: update.currentUserInfo.avatar,
         };
       }
     }
     return state;
   } else if (action.type === setUserSettingsActionTypes.success) {
     if (state?.settings) {
       return {
         ...state,
         settings: {
           ...state.settings,
           ...action.payload,
         },
       };
     }
   } else if (action.type === resetUserStateActionType) {
     state = state && state.anonymous ? state : null;
   }
   return state;
 }
 
 function assertUserStoresAreEqual(
   processedUserStore: UserInfos,
   expectedUserStore: UserInfos,
   location: string,
   onStateDifference: (message: string) => mixed,
 ) {
   try {
     assertObjectsAreEqual(
       processedUserStore,
       expectedUserStore,
       `UserInfos - ${location}`,
     );
   } catch (e) {
     console.log(
       'Error processing UserStore ops',
       processedUserStore,
       expectedUserStore,
     );
     const message = `Error processing UserStore ops ${
       getMessageForException(e) ?? '{no exception message}'
     }`;
     onStateDifference(message);
   }
 }
 
 const { processStoreOperations: processUserStoreOps } = userStoreOpsHandlers;
 
 function generateOpsForUserUpdates(payload: {
   +updatesResult: { +newUpdates: $ReadOnlyArray<ClientUpdateInfo>, ... },
   ...
 }): $ReadOnlyArray<UserStoreOperation> {
   return payload.updatesResult.newUpdates
     .map(update =>
       updateSpecs[update.type].generateOpsForUserInfoUpdates?.(update),
     )
     .filter(Boolean)
     .flat();
 }
 
 function reduceUserInfos(
   state: UserStore,
   action: BaseAction,
   onStateDifference: (message: string) => mixed,
 ): [
   UserStore,
   $ReadOnlyArray<ClientUserInconsistencyReportCreationRequest>,
   $ReadOnlyArray<UserStoreOperation>,
 ] {
   if (
     action.type === joinThreadActionTypes.success ||
     action.type === newThreadActionTypes.success
   ) {
     const newUserInfos: UserInfos = _keyBy(userInfo => userInfo.id)(
       action.payload.userInfos,
     );
 
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> =
       convertUserInfosToReplaceUserOps(newUserInfos);
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     const updated: UserInfos = { ...state.userInfos, ...newUserInfos };
     assertUserStoresAreEqual(
       processedUserInfos,
       updated,
       action.type,
       onStateDifference,
     );
 
     if (!_isEqual(state.userInfos)(updated)) {
       return [
         {
           ...state,
           userInfos: updated,
         },
         [],
         userStoreOps,
       ];
     }
   } else if (
     action.type === logOutActionTypes.success ||
     action.type === deleteAccountActionTypes.success ||
     (action.type === setNewSessionActionType &&
       action.payload.sessionChange.cookieInvalidated)
   ) {
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> = [
       { type: 'remove_all_users' },
     ];
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     assertUserStoresAreEqual(
       processedUserInfos,
       {},
       action.type,
       onStateDifference,
     );
 
     if (Object.keys(state.userInfos).length === 0) {
       return [state, [], []];
     }
     return [
       {
         userInfos: {},
       },
       [],
       userStoreOps,
     ];
   } else if (
     action.type === logInActionTypes.success ||
     action.type === siweAuthActionTypes.success ||
     action.type === registerActionTypes.success ||
     action.type === fullStateSyncActionType
   ) {
     const newUserInfos = _keyBy(userInfo => userInfo.id)(
       action.payload.userInfos,
     );
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> = [
       { type: 'remove_all_users' },
       ...convertUserInfosToReplaceUserOps(newUserInfos),
     ];
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     assertUserStoresAreEqual(
       processedUserInfos,
       newUserInfos,
       action.type,
       onStateDifference,
     );
     if (!_isEqual(state.userInfos)(newUserInfos)) {
       return [
         {
           userInfos: newUserInfos,
         },
         [],
         userStoreOps,
       ];
     }
   } else if (
     action.type === incrementalStateSyncActionType ||
     action.type === processUpdatesActionType
   ) {
     const newUserInfos = _keyBy(userInfo => userInfo.id)(
       action.payload.userInfos,
     );
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> = [
       ...convertUserInfosToReplaceUserOps(newUserInfos),
       ...generateOpsForUserUpdates(action.payload),
     ];
     const updated = action.payload.updatesResult.newUpdates.reduce(
       (reducedState, update) => {
         const { reduceUserInfos: reduceUserInfosUpdate } =
           updateSpecs[update.type];
         return reduceUserInfosUpdate
           ? reduceUserInfosUpdate(reducedState, update)
           : reducedState;
       },
       { ...state.userInfos, ...newUserInfos },
     );
 
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     assertUserStoresAreEqual(
       processedUserInfos,
       updated,
       action.type,
       onStateDifference,
     );
     if (!_isEqual(state.userInfos)(updated)) {
       return [
         {
           ...state,
           userInfos: updated,
         },
         [],
         userStoreOps,
       ];
     }
   } else if (action.type === processServerRequestsActionType) {
     const checkStateRequest = action.payload.serverRequests.find(
       candidate => candidate.type === serverRequestTypes.CHECK_STATE,
     );
     if (!checkStateRequest || !checkStateRequest.stateChanges) {
       return [state, [], []];
     }
     const { userInfos, deleteUserInfoIDs } = checkStateRequest.stateChanges;
     if (!userInfos && !deleteUserInfoIDs) {
       return [state, [], []];
     }
 
     const userStoreOps: UserStoreOperation[] = [];
     const newUserInfos = { ...state.userInfos };
     if (userInfos) {
       for (const userInfo of userInfos) {
         newUserInfos[userInfo.id] = userInfo;
         userStoreOps.push({ type: 'replace_user', payload: { ...userInfo } });
       }
     }
     if (deleteUserInfoIDs) {
       for (const deleteUserInfoID of deleteUserInfoIDs) {
         delete newUserInfos[deleteUserInfoID];
       }
       userStoreOps.push({
         type: 'remove_users',
         payload: { ids: deleteUserInfoIDs },
       });
     }
 
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     assertUserStoresAreEqual(
       processedUserInfos,
       newUserInfos,
       action.type,
       onStateDifference,
     );
 
     const newInconsistencies = stateSyncSpecs.users.findStoreInconsistencies(
       action,
       state.userInfos,
       newUserInfos,
     );
     return [
       {
         userInfos: newUserInfos,
       },
       newInconsistencies,
       userStoreOps,
     ];
   } else if (action.type === updateUserAvatarActionTypes.success) {
     const newUserInfos = _keyBy(userInfo => userInfo.id)(
       action.payload.updates.userInfos,
     );
     const userStoreOps: $ReadOnlyArray<UserStoreOperation> =
       convertUserInfosToReplaceUserOps(newUserInfos);
     const processedUserInfos: UserInfos = processUserStoreOps(
       state.userInfos,
       userStoreOps,
     );
     const updated: UserInfos = { ...state.userInfos, ...newUserInfos };
     assertUserStoresAreEqual(
       processedUserInfos,
       updated,
       action.type,
       onStateDifference,
     );
     const newState = !_isEqual(state.userInfos)(updated)
       ? {
           ...state,
           userInfos: updated,
         }
       : state;
     return [newState, [], userStoreOps];
   } else if (action.type === setClientDBStoreActionType) {
     if (!action.payload.users) {
       return [state, [], []];
     }
     // Once the functionality is confirmed to work correctly,
     // we will proceed with returning the users from the payload.
     assertUserStoresAreEqual(
       action.payload.users ?? {},
       state.userInfos,
       action.type,
       onStateDifference,
     );
     return [state, [], []];
   }
 
   return [state, [], []];
 }
 
 export { reduceCurrentUserInfo, reduceUserInfos };