From a73b28ce96eac8b2c84ae49675bb8ee17a2a606c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicolas=20=C3=89vrard?= <nicoe@b2ck.com>
Date: Sat, 13 Apr 2024 17:42:02 +0200
Subject: [PATCH] Check for the existence of a screen before restoring size of
 wizard's dialog window

Closes #12944
---
 tryton/tryton/gui/window/wizard.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tryton/tryton/gui/window/wizard.py b/tryton/tryton/gui/window/wizard.py
index fbd258d3ce..a23b4c7518 100644
--- a/tryton/tryton/gui/window/wizard.py
+++ b/tryton/tryton/gui/window/wizard.py
@@ -402,6 +402,8 @@ class WizardDialog(Wizard, NoModal):
         return True
 
     def show(self):
+        if not self.screen:
+            return
         view = self.screen.current_view
         if view.view_type == 'form':
             expand = False