diff --git a/lib/reducers/entry-reducer.js b/lib/reducers/entry-reducer.js
--- a/lib/reducers/entry-reducer.js
+++ b/lib/reducers/entry-reducer.js
@@ -588,23 +588,25 @@
       return [entryStore, []];
     }
 
-    let updatedEntryInfos = { ...entryInfos };
+    const updatedEntryInfos: { [string]: RawEntryInfo } = { ...entryInfos };
     if (deleteEntryIDs) {
       for (const deleteEntryID of deleteEntryIDs) {
         delete updatedEntryInfos[deleteEntryID];
       }
     }
 
-    let updatedDaysToEntries;
+    let mergedEntryInfos: { +[string]: RawEntryInfo };
+    let mergedDaysToEntries;
     if (rawEntryInfos) {
-      [updatedEntryInfos, updatedDaysToEntries] = mergeNewEntryInfos(
+      [mergedEntryInfos, mergedDaysToEntries] = mergeNewEntryInfos(
         updatedEntryInfos,
         null,
         rawEntryInfos,
         newThreadInfos,
       );
     } else {
-      updatedDaysToEntries = daysToEntriesFromEntryInfos(
+      mergedEntryInfos = updatedEntryInfos;
+      mergedDaysToEntries = daysToEntriesFromEntryInfos(
         values(updatedEntryInfos),
       );
     }
@@ -612,13 +614,13 @@
     const newInconsistencies = stateSyncSpecs.entries.findStoreInconsistencies(
       action,
       entryInfos,
-      updatedEntryInfos,
+      mergedEntryInfos,
     );
 
     return [
       {
-        entryInfos: updatedEntryInfos,
-        daysToEntries: updatedDaysToEntries,
+        entryInfos: mergedEntryInfos,
+        daysToEntries: mergedDaysToEntries,
         lastUserInteractionCalendar,
       },
       newInconsistencies,