From 77cf9bf1d23301a54f2849c0c5d8ce980b14fc0a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marta=20Marczykowska-G=C3=B3recka?=
 <marta.maria.gorecka@gmail.com>
Date: Fri, 19 Oct 2018 20:06:30 +0200
Subject: [PATCH] Fixed error in qube manager of change of global settings

Changing global properties fired an event that crashed qube
manager.

fixes QubesOS/qubes-issues#4385
---
 qubesmanager/qube_manager.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/qubesmanager/qube_manager.py b/qubesmanager/qube_manager.py
index 292b96e..9a44f48 100644
--- a/qubesmanager/qube_manager.py
+++ b/qubesmanager/qube_manager.py
@@ -476,6 +476,8 @@ class VmManagerWindow(ui_qubemanager.Ui_VmManagerWindow, QtGui.QMainWindow):
                     row.info_widget.update_vm_state()
 
     def on_domain_changed(self, vm, _event, **_kwargs):
+        if not vm:  # change of global properties occured
+            return
         try:
             self.vms_in_table[vm.qid].update()
         except exc.QubesPropertyAccessError: