Attach to context only if not already attached.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@33032 20353a03-c40f-0410-a6d1-a30d3c3de9de

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

@@ -116,6 +116,8 @@ else:\n
   if attach_document_to_context:\n
     # attach document to current context using follow_up\n
     follow_up_list = document.getFollowUpValueList()\n
+    if context not in follow_up_list:\n
+      # attach to context only if not already attached\n
       follow_up_list.append(context)\n
       document.setFollowUpValueList([x.getRelativeUrl() for x in follow_up_list])\n
   # edit document   \n

bt5/erp5_ingestion/bt/revision

-74
\ No newline at end of file
+75
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