Sorry my previous stupid patch was a bad-stupid patch. This one is my true-stupid patch.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@8611 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/ListBox.py

@@ -2064,12 +2064,9 @@ class ListBoxHTMLRenderer(ListBoxRenderer):
     method_id = self.field.get_value('page_template')
     if method_id not in (None, ''):
       try:
-        return aq_base(getattr(self.getContext(), method_id)).__of__(context)
+        return getattr(context, method_id)
       except AttributeError:
-        page_template = getattr( context.getPortalObject()
-                               , method_id
-                               )
-        return page_template.__of__(context)
+        return getattr(context.getPortalObject(), method_id).__of__(context)
       return aq_base(getattr(self.getContext(), method_id)).__of__(context)
 
     # Otherwise, use the default one.