fix "ambigous name" warning during startup

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@28429 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/Base.py

@@ -795,6 +795,7 @@ class Base( CopyContainer,
 
   # We want to use a default property view
   manage_main = manage_propertiesForm = DTMLFile( 'properties', _dtmldir )
+  manage_main._setName('manage_main')
 
   manage_options = ( PropertyManager.manage_options +
                      SimpleItem.manage_options +