From 66538d503b8dd5885ae15fd5c19d90a195153fee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Wed, 5 Dec 2012 13:36:06 +0100
Subject: [PATCH] Fix tax matching on many2one

review599005
---
 tax.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tax.py b/tax.py
index 75adfd261f..dd6a850f40 100644
--- a/tax.py
+++ b/tax.py
@@ -1192,7 +1192,8 @@ class TaxRuleLine(ModelSQL, ModelView):
             if not getattr(self, field) and field != 'group':
                 continue
             if self._fields[field]._type == 'many2one':
-                if getattr(self, field).id != pattern[field]:
+                if ((getattr(self, field).id if getattr(self, field) else None)
+                        != pattern[field]):
                     return False
             else:
                 if getattr(self, field) != pattern[field]: