From b25b361e11c63d86efb5176eda971cb57cc077c0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Thu, 11 Feb 2016 22:27:31 +0100
Subject: [PATCH] Don't compare quantity if quantity is None

issue5303
review18971002
---
 price_list.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/price_list.py b/price_list.py
index e257313096..bfbab734e7 100644
--- a/price_list.py
+++ b/price_list.py
@@ -144,7 +144,8 @@ class PriceListLine(ModelSQL, ModelView, MatchMixin):
     def match(self, pattern):
         if 'quantity' in pattern:
             pattern = pattern.copy()
-            if self.quantity > pattern.pop('quantity'):
+            quantity = pattern.pop('quantity')
+            if self.quantity is not None and self.quantity > quantity:
                 return False
         return super(PriceListLine, self).match(pattern)