From 93a68fcd15813e2c70250e05d4ccc6cde7b14079 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 6 Dec 2011 19:45:53 +0100
Subject: [PATCH] cost_line could be empty dictionary if there is no cost
 (transplanted from ebb11dd2659394e1fca65c231a3647c1a4647d76)

---
 sale.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sale.py b/sale.py
index c8449b68fe..0ca22af071 100644
--- a/sale.py
+++ b/sale.py
@@ -154,7 +154,7 @@ class Sale(Model):
             values['lines'] = []
         for line in values['lines']:
             if line.get('shipment_cost'):
-                if line['shipment_cost'] != cost_line['shipment_cost']:
+                if line['shipment_cost'] != cost_line.get('shipment_cost'):
                     to_remove = line['id']
                     values['lines'].remove(line)
                     if cost_line: