In some case ERP5 form caller may send empty strings.

Make sure that only in this case we do NOT override discovered by metadata values (reference, language, version).

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33029 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_ingestion/SkinTemplateItem/portal_skins/erp5_ingestion/Base_contribute.xml

@@ -111,7 +111,7 @@ else:\n
   for key in [\'title\', \'reference\', \'group\', \'source_project\', \n
               \'short_title\', \'language\', \'version\', \'description\']:\n
     value = kw.get(key, kw.get(\'field_your_%s\' %key, kw.get(\'field_my_%s\' %key, None)))\n
-    if value is not None:\n
+    if value not in MARKER:\n
       document_edit_kw[key] = value\n
   if attach_document_to_context:\n
     # attach document to current context using follow_up\n

bt5/erp5_ingestion/bt/revision

-73
\ No newline at end of file
+74
\ No newline at end of file