--- ckan/ckan/logic/action/update.py	2021-02-17 16:46:55.673578728 +0100
+++ ckan/ckan/logic/action/update-edit.py	2021-02-17 16:47:28.905879170 +0100
@@ -929,7 +929,7 @@
 
     '''
     model = context['model']
-    session = model.Session
+    session = model.meta.create_local_session()
     context['session'] = session
 
     user = context['user']