From f095bb4eb63c65e08a01630be5c7e08087928735 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Fri, 10 Oct 2014 09:59:37 +0200
Subject: [PATCH] Prevent too old revision in form view

issue4211
review11551002
---
 tryton/gui/window/form.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tryton/gui/window/form.py b/tryton/gui/window/form.py
index efcbf633f3..e347dd847c 100644
--- a/tryton/gui/window/form.py
+++ b/tryton/gui/window/form.py
@@ -273,6 +273,10 @@ class Form(SignalEvent, TabContent):
             return
         revision = self.screen.context.get('_datetime')
         revision = Revision(revisions, revision).run()
+        # Prevent too old revision in form view
+        if (self.screen.current_view.view_type == 'form'
+                and revision < revisions[-1][0]):
+                revision = revisions[-1][0]
         if revision != self.screen.context.get('_datetime'):
             self.screen.clear()
             # Update root group context that will be propagated