Ticket #32704: ticket-32704.diff

django/db/models/sql/query.py

@@ -2081 +2081 @@
             self.deferred_loading = existing.union(field_names), True
         else:
             # Remove names from the set of any existing "immediate load" names.
-            self.deferred_loading = existing.difference(field_names), False
+            existing = existing.difference(field_names)
+            if not existing:
+                self.clear_deferred_loading()
+            else:
+                self.deferred_loading = existing, False
 
     def add_immediate_loading(self, field_names):
         """