From 625f4e253f87692403606a7541ab3c1d6b69f45b Mon Sep 17 00:00:00 2001
From: Xavier Morel <xmo@openerp.com>
Date: Mon, 14 Oct 2013 12:56:21 +0200
Subject: [PATCH] [IMP] correctly handle empty m2o field serialization

bzr revid: xmo@openerp.com-20131014105621-mwiucen7glajccea
---
 openerp/addons/base/ir/ir_qweb.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/openerp/addons/base/ir/ir_qweb.py b/openerp/addons/base/ir/ir_qweb.py
index 1a7ccd8fbd2..ab5d86206c6 100644
--- a/openerp/addons/base/ir/ir_qweb.py
+++ b/openerp/addons/base/ir/ir_qweb.py
@@ -565,6 +565,8 @@ class ManyToOneConverter(osv.AbstractModel):
     _inherit = 'ir.qweb.field'
 
     def value_to_html(self, cr, uid, value, column, options=None):
+        # value may be a browse_null
+        if not value: return ''
         return werkzeug.utils.escape(value.name_get()[0][1]).replace('\n', '<br>\n')
 
 class HTMLConverter(osv.AbstractModel):