- adjusted the definition of "self-referential" to be

any two mappers with a common parent (this affects
whether or not aliased=True is required when joining
with Query).

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/sqlalchemy/orm/properties.py b/lib/sqlalchemy/orm/properties.py
index e34c725ff..13ed83bc9 100644
--- a/lib/sqlalchemy/orm/properties.py
+++ b/lib/sqlalchemy/orm/properties.py
@@ -759,7 +759,7 @@ class PropertyLoader(StrategizedProperty):
         return self.parent.mapped_table is self.target or self.parent.select_table is self.target
     
     def _is_self_referential(self):
-        return self.mapper.isa(self.parent)
+        return self.mapper.common_parent(self.parent)
         
     def primary_join_against(self, mapper, selectable=None, toselectable=None):
         return self.__cached_join_against(mapper, selectable, toselectable, True, False)