ERP5Site_checkDataWithScript: allow called script to return None.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@26543 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/bootstrap/erp5_core/SkinTemplateItem/portal_skins/erp5_core/ERP5Site_checkDataWithScript.xml

@@ -95,7 +95,7 @@ if depth == maximum_depth and id_list:\n
   if method_kw is None:\n
     method_kw = {}\n
   def recurse(document):\n
-    error_list.extend(getattr(document, method_id)(**method_kw))\n
+    error_list.extend(getattr(document, method_id)(**method_kw) or ())\n
     if recursive:\n
       for subdocument in document.objectValues():\n
         recurse(subdocument)\n

product/ERP5/bootstrap/erp5_core/bt/revision

-1162
+1163
\ No newline at end of file