added comment

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@3787 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Form/SelectionTool.py

@@ -929,7 +929,7 @@ class SelectionTool( UniqueObject, SimpleItem ):
           return "Sorrry, Error, the calling object was not catalogued. Do not know how to do ?"
 
       # Find the field which was clicked on
-      form = getattr(o, form_id)
+      form = getattr(o, form_id) # Important to get from the object instead of self
       field = None
       relation_index = 0