From bfbcf8816124e5ed3e52a03478e88fb4d042e227 Mon Sep 17 00:00:00 2001
From: Marco Bubke <marco.bubke@qt.io>
Date: Tue, 14 May 2024 15:41:50 +0200
Subject: [PATCH] QmlDesigner: Fix crash on exit

Change-Id: I26f3c1154d8cdef9cf76b6f608634067b099ea0e
Reviewed-by: Marco Bubke <marco.bubke@qt.io>
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>
---
 .../components/materialeditor/materialeditorview.cpp           | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp b/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
index ce11c587584..02d9333e09c 100644
--- a/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
+++ b/src/plugins/qmldesigner/components/materialeditor/materialeditorview.cpp
@@ -740,7 +740,8 @@ void MaterialEditorView::modelAboutToBeDetached(Model *model)
 {
     AbstractView::modelAboutToBeDetached(model);
     m_dynamicPropertiesModel->reset();
-    m_qmlBackEnd->materialEditorTransaction()->end();
+    if (auto transaction = m_qmlBackEnd->materialEditorTransaction())
+        transaction->end();
     m_qmlBackEnd->contextObject()->setHasMaterialLibrary(false);
     m_selectedMaterial = {};
 }