diff --git a/lib/reducers/message-reducer.js b/lib/reducers/message-reducer.js
--- a/lib/reducers/message-reducer.js
+++ b/lib/reducers/message-reducer.js
@@ -562,25 +562,22 @@
     updatedMessageStore.currentAsOf,
   );
 
-  const mergedMessageStore = { messages, threads, local, currentAsOf };
-
   const processedMessageStore = processMessageStoreOperations(
     updatedMessageStore,
     newMessageOps,
   );
 
-  assertMessageStoreMessagesAreEqual(
-    processedMessageStore,
-    mergedMessageStore,
-    `${actionType}|processed`,
-  );
-
   return {
     messageStoreOperations: [
       ...updateWithLatestThreadInfosOps,
       ...newMessageOps,
     ],
-    messageStore: mergedMessageStore,
+    messageStore: {
+      messages: processedMessageStore.messages,
+      threads,
+      local,
+      currentAsOf,
+    },
   };
 }