From 3724878043a90a1f4cb2a6816c82146b5bc0d48c Mon Sep 17 00:00:00 2001
From: Knud Dollereder <knud.dollereder@qt.io>
Date: Fri, 18 Dec 2020 16:25:02 +0100
Subject: [PATCH] Prevent access of invalid parent properties

when retrieving the parent ids of a ModelNode

Change-Id: Ic754786e2bd3744b7a4bd67b9db385be368e5925
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
---
 .../qmldesigner/components/curveeditor/curveeditormodel.cpp    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/plugins/qmldesigner/components/curveeditor/curveeditormodel.cpp b/src/plugins/qmldesigner/components/curveeditor/curveeditormodel.cpp
index 7827cf03c0f..8b0a0357b1c 100644
--- a/src/plugins/qmldesigner/components/curveeditor/curveeditormodel.cpp
+++ b/src/plugins/qmldesigner/components/curveeditor/curveeditormodel.cpp
@@ -225,6 +225,9 @@ PropertyTreeItem::ValueType typeFrom(const QmlDesigner::QmlTimelineKeyframeGroup
 
 std::vector<QString> parentIds(const QmlDesigner::ModelNode &node)
 {
+    if (!node.hasParentProperty())
+        return {};
+
     std::vector<QString> out;
 
     QmlDesigner::ModelNode parent = node.parentProperty().parentModelNode();