Ticket #3275: fix_depth_bug.diff

django/db/models/query.py

@@ -760 +763 @@
     """
 
     # If we've got a max_depth set and we've exceeded that depth, bail now.
-    if max_depth and cur_depth > max_depth:
+    if max_depth and cur_depth >= max_depth:
         return None
 
     qn = backend.quote_name