Upgrade of business templates:

Due to a typo in r24832, upgrade of workflows could be be silently skipped.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@24855 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -1316,7 +1316,7 @@ class WorkflowTemplateItem(ObjectTemplateItem):
     for modified_object, state in modified_object_dict.iteritems():
       path = modified_object.split('/')
       if len(path) > 2:
-        modified_workflow_dict.setdefault(''.join(path[:2]), ('Modified', state[1]))
+        modified_workflow_dict.setdefault('/'.join(path[:2]), ('Modified', state[1]))
       else:
         modified_workflow_dict[modified_object] = state
     return modified_workflow_dict