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Changes between Version 2 and Version 3 of Ticket #35369

-              v2
+              v3
         b = BugModel.objects.all()
         ab = a.union(b)
+        ab = a.union(b)   # does NOT happen with `a | b`
         """
+            (
 …
         """
         ab.aggregate(max=Max("foo"))
+        q = ab.aggregate(max=Max("foo"))
         """
         SELECT MAX(`__col1`)
 …
         MySQLdb.OperationalError: (1054, "Unknown column '__col1' in 'field list'")
         """
+        self.assertIsNone(q['max'])
 }}}