only expend items providing IExpendable

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@43777 20353a03-c40f-0410-a6d1-a30d3c3de9de

bt5/erp5_open_trade/SkinTemplateItem/portal_skins/erp5_open_trade/OpenOrder_updateSimulation.xml

@@ -55,6 +55,7 @@
 for open_order_line in context.contentValues():\n
   for path in [open_order_line] + open_order_line.getCellValueList():\n
     for item in path.getAggregateValueList():\n
+       if item.providesIExpendable():\n
          subscription_item_dict[item] = 1\n
 \n
 # XXX tag / after tag !\n

bt5/erp5_open_trade/bt/revision

-85
\ No newline at end of file
+86
\ No newline at end of file