Ensure order when searching for address

partner.py

@@ -56,7 +56,8 @@ class Partner(OSV):
         """
         address_obj = self.pool.get("partner.address")
         address_ids = address_obj.search(
-            cursor, user, [("partner","=",partner_id),("active","=",True)])
+            cursor, user, [("partner","=",partner_id),("active","=",True)],
+            order="sequence")
         if not address_ids:
             return None
         default_address = address_ids[0]