Disable generateNewId and explain why.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@6436 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/Item.py

@@ -77,6 +77,11 @@ class Item(XMLObject, Amount, ImmobilisableItem):
                       , PropertySheet.Reference
                       )
 
+    if 0:
+      # The following code is disabled. The original intention was to generate
+      # an unique reference for each item. We now use reference instead of id,
+      # so this is not applicable any longer. We need something different for
+      # reference.
       security.declareProtected(Permissions.ModifyPortalContent,'generateNewId')
       def generateNewId(self, id_group='item_id_group', default=None, method=None):
         """