[FIX] ensure Field strings are decoded before comparing them to one another

fixes #773

diff --git a/addons/web/controllers/main.py b/addons/web/controllers/main.py
index b74efc9..16c245f 100644 (file)
--- a/addons/web/controllers/main.py
+++ b/addons/web/controllers/main.py
@@ -1330,7 +1330,7 @@ class Export(http.Controller):
             fields['.id'] = fields.pop('id', {'string': 'ID'})
 
         fields_sequence = sorted(fields.iteritems(),
-            key=lambda field: field[1].get('string', ''))
+            key=lambda field: openerp.tools.ustr(field[1].get('string', '')))
 
         records = []
         for field_name, field in fields_sequence: