diff --git a/ckan/logic/action/update.py b/ckan/logic/action/update.py
index 461f0810175..5bd99b8bc94 100644
--- a/ckan/logic/action/update.py
+++ b/ckan/logic/action/update.py
@@ -366,6 +366,9 @@ def user_update(context, data_dict):
 
 def task_status_update(context, data_dict):
     model = context['model']
+    session = model.meta.create_local_session()
+    context['session'] = session
+
     user = context['user']
     id = data_dict.get("id")
     schema = context.get('schema') or default_task_status_schema()
@@ -382,13 +385,13 @@ def task_status_update(context, data_dict):
     data, errors = validate(data_dict, schema, context)
 
     if errors:
-        model.Session.rollback()
+        session.rollback()
         raise ValidationError(errors, task_status_error_summary(errors))
 
     task_status = task_status_dict_save(data, context)
 
-    if not context.get('defer_commit'):
-        model.Session.commit()
+    session.commit()
+    session.close()
     return task_status_dictize(task_status, context)
 
 def task_status_update_many(context, data_dict):
diff --git a/ckan/model/__init__.py b/ckan/model/__init__.py
index 58246c54b2b..c7ee014e40c 100644
--- a/ckan/model/__init__.py
+++ b/ckan/model/__init__.py
@@ -36,6 +36,7 @@ def init_model(engine):
     '''Call me before using any of the tables or classes in the model'''
     meta.Session.remove()
     meta.Session.configure(bind=engine)
+    meta.create_local_session.configure(bind=engine)
     meta.engine = engine
     meta.metadata.bind = engine
     # sqlalchemy migrate version table
@@ -45,7 +46,7 @@ def init_model(engine):
     except sqlalchemy.exc.NoSuchTableError:
         pass
 
-
+    
 
 class Repository(vdm.sqlalchemy.Repository):
     migrate_repository = ckan.migration.__path__[0]
diff --git a/ckan/model/meta.py b/ckan/model/meta.py
index 8e48e595a34..2872e8f1133 100644
--- a/ckan/model/meta.py
+++ b/ckan/model/meta.py
@@ -90,22 +90,19 @@ def after_rollback(self, session):
 # SQLAlchemy database engine. Updated by model.init_model()
 engine = None
 
-if sqav.startswith("0.4"):
-    # SQLAlchemy session manager. Updated by model.init_model()
-    Session = scoped_session(sessionmaker(
-        autoflush=False,
-        transactional=True,
-        extension=[CkanSessionExtension(),
-                   extension.PluginSessionExtension()],
-        ))
-else:
-    Session = scoped_session(sessionmaker(
-        autoflush=False,
-        autocommit=False,
-        expire_on_commit=False,
-        extension=[CkanSessionExtension(),
-                   extension.PluginSessionExtension()],
-        ))
+Session = scoped_session(sessionmaker(
+    autoflush=False,
+    autocommit=False,
+    expire_on_commit=False,
+    extension=[CkanSessionExtension(), extension.PluginSessionExtension()],
+))
+
+create_local_session = sessionmaker(
+    autoflush=False,
+    autocommit=False,
+    expire_on_commit=False,
+    extension=[CkanSessionExtension(), extension.PluginSessionExtension()],
+)
 
 #mapper = Session.mapper
 mapper = orm.mapper