register object_classes as well

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@42916 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Utils.py

@@ -1193,6 +1193,7 @@ def initializeProduct( context,
 
   # Register Objets
   for c in object_classes:
+    registerDocumentClass(c.__module__, c.__name__)
     icon = getattr(c, 'icon', None)
     permission = getattr(c, 'permission_type', None)
     context.registerClass(c,