From f9fb5d7e886c8919924e147fc445fd5d9c2f72a6 Mon Sep 17 00:00:00 2001
From: Thomas Hartmann <thomas.hartmann@qt.io>
Date: Wed, 15 Apr 2020 19:27:01 +0200
Subject: [PATCH] QmlDesigner: Fix crash

Change-Id: Iaabc04e97fb7e06d462e7716be27a24471be2bd2
Reviewed-by: Aleksei German <aleksei.german@qt.io>
Reviewed-by: Thomas Hartmann <thomas.hartmann@qt.io>
---
 src/plugins/qmldesigner/designercore/model/modelnode.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/plugins/qmldesigner/designercore/model/modelnode.cpp b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
index e8283c4b4c6..61d0f93cf56 100644
--- a/src/plugins/qmldesigner/designercore/model/modelnode.cpp
+++ b/src/plugins/qmldesigner/designercore/model/modelnode.cpp
@@ -944,6 +944,9 @@ bool ModelNode::hasNodeListProperty(const PropertyName &name) const
 
 static bool recursiveAncestor(const ModelNode &possibleAncestor, const ModelNode &node)
 {
+    if (!node.isValid())
+        return false;
+
     if (node.hasParentProperty()) {
         if (node.parentProperty().parentModelNode() == possibleAncestor)
            return true;