From 17da102695d707f0ad8881ac542c6c0fdc72b536 Mon Sep 17 00:00:00 2001
From: Thomas Hartmann <thomas.hartmann@qt.io>
Date: Fri, 8 Sep 2023 09:31:49 +0200
Subject: [PATCH] QmlDesigner: Fix crash on exit

Change-Id: If02837c0af08b037a10e0f91172eafb757e0c81f
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
---
 .../qmldesigner/components/connectioneditor/connectionmodel.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/plugins/qmldesigner/components/connectioneditor/connectionmodel.cpp b/src/plugins/qmldesigner/components/connectioneditor/connectionmodel.cpp
index 28be4827325..873750b2af6 100644
--- a/src/plugins/qmldesigner/components/connectioneditor/connectionmodel.cpp
+++ b/src/plugins/qmldesigner/components/connectioneditor/connectionmodel.cpp
@@ -768,6 +768,8 @@ void ConnectionModelBackendDelegate::setCurrentRow(int i)
     qDebug() << Q_FUNC_INFO << i << model;
 
     QTC_ASSERT(model, return );
+    if (!model->connectionView()->isAttached())
+        return;
 
     SignalHandlerProperty signalHandlerProperty = model->signalHandlerPropertyForRow(currentRow());