ChangeArbiter/SceneChange: use id as change subject

Instead of having a QNode* or QObservable as the subject of a change, we use
it's unique NodeId instead. That will prevent the ChangeArbiter from trying to
distribute changes by looking at a QNode/QObservable id when the
QNode/QObservable might have been destroyed in the meantime.

Change-Id: Ia419d5b841434fd65522c8c65de552089cfe97cf
Task-number: QTBUG-44628
Reviewed-by: Laszlo Agocs <laszlo.agocs@theqtcompany.com>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/render/frontend/qabstractmesh.cpp b/src/render/frontend/qabstractmesh.cpp
index f88e6c42b..94495f23d 100644
--- a/src/render/frontend/qabstractmesh.cpp
+++ b/src/render/frontend/qabstractmesh.cpp
@@ -82,7 +82,7 @@ void QAbstractMesh::update()
 {
     Q_D(QAbstractMesh);
         if (d->m_changeArbiter != Q_NULLPTR) {
-            QScenePropertyChangePtr change(new QScenePropertyChange(NodeUpdated, this));
+            QScenePropertyChangePtr change(new QScenePropertyChange(NodeUpdated, QSceneChange::Node, id()));
             change->setPropertyName("meshFunctor");
             change->setValue(QVariant::fromValue(meshFunctor()));
             d->notifyObservers(change);