expunge wasnt de-associating the object with a session

2 files changed, 2 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 16e6a05d4..ffc2e5186 100644
--- a/CHANGES
+++ b/CHANGES
@@ -6,6 +6,7 @@ of subclassed directly.
 - activemapper will use threadlocal's objectstore if the mod is
 activated when activemapper is imported
 - small fix to URL regexp to allow filenames with '@' in them
+- fixes to Session expunge/update/etc.
 
 0.2.5
 - fixed endless loop bug in select_by(), if the traversal hit
diff --git a/lib/sqlalchemy/orm/session.py b/lib/sqlalchemy/orm/session.py
index 5bed7181c..82e1c6d6d 100644
--- a/lib/sqlalchemy/orm/session.py
+++ b/lib/sqlalchemy/orm/session.py
@@ -266,6 +266,7 @@ class Session(object):
     def expunge(self, object):
         """removes the given object from this Session.  this will free all internal references to the object."""
         self.uow.expunge(object)
+        self._unattach(object)
         
     def save(self, object, entity_name=None):
         """