topic: Pass args to select_related call for Message objects.

This commit adds code to pass all the required arguments to
select_related call for Message objects such that only the
required related fields are fetched from the database.

Previously, we did not pass any arguments to select_related,
so all the directly and indirectly related fields were fetched
when many of them were actually not being used and made the
query unnecessarily complex.

zerver/lib/topic.py

@@ -160,7 +160,9 @@ def update_messages_for_topic_edit(
     if propagate_mode == "change_later":
         propagate_query = propagate_query & Q(id__gt=edited_message.id)
 
-    messages = Message.objects.filter(propagate_query).select_related()
+    messages = Message.objects.filter(propagate_query).select_related(
+        *Message.DEFAULT_SELECT_RELATED
+    )
 
     update_fields = ["edit_history", "last_edit_time"]