From 75931c4bf8bd3a2212e53f32362e69346d55be09 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 7 Feb 2012 17:35:21 +0100
Subject: [PATCH] Set session state dirty if updated

When updating session with data from the client, the states must be mark as
dirty to be saved in the database at the end of the process.

issue2421
---
 trytond/wizard/wizard.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/trytond/wizard/wizard.py b/trytond/wizard/wizard.py
index aed91f062d..a72f2a94dc 100644
--- a/trytond/wizard/wizard.py
+++ b/trytond/wizard/wizard.py
@@ -328,7 +328,10 @@ class Wizard(WarningErrorMixin, URLMixin):
         if isinstance(session, (int, long)):
             session = Session(self, session)
         for key, value in data.iteritems():
+            prev_data = session.data[key].copy()
             session.data[key].update(value)
+            if prev_data != session.data[key]:
+                getattr(session, key).dirty = True
 
         state = self.states[state_name]
         result = {}