Get portal_catalog from portal itself to avoid acquisition lookups

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@41228 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Extensions/InventoryBrain.py

@@ -300,7 +300,8 @@ class TrackingListBrain(InventoryListBrain):
     # the brain is accessed from the Shared.DC.ZRDB.Results.Results instance
     obj = self.getObject()
     if obj is not None:
-      movement = obj.portal_catalog.getObject(self.delivery_uid)
+      portal = obj.getPortalObject()
+      movement = portal.portal_catalog.getObject(self.delivery_uid)
       date = movement.getStartDate() or movement.getStopDate()
       if date is not None:
         timezone = date.timezone()