Ticket #1592: related_with_limit_choices.diff

django/db/models/fields/related.py

@@ -132 +132 @@
                 params = {'%s__pk' % self.field.rel.field_name: val}
             else:
                 params = {'%s__exact' % self.field.rel.field_name: val}
+                if self.field.rel.limit_choices_to:
+                    params.update(self.field.rel.limit_choices_to)
             rel_obj = self.field.rel.to._default_manager.get(**params)
             setattr(instance, cache_name, rel_obj)
             return rel_obj