[REG 4.3.0 beta -> 4.3.0] Crash when opening Quick Designer

1   QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData>>::data                                                                                             qscopedpointer.h        140  0x6ca4ecba     
2   qGetPtrHelper<QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData>>>                                                                                    qglobal.h               961  0x6cb3e703     
3   QTreeView::d_func                                                                                                                                                qtreeview.h             231  0x6cb7be2a     
4   QTreeView::expandAll                                                                                                                                             qtreeview.cpp           2718 0x6cf57803     
5   <lambda_dbfa9012c3dd9200159099c86c83c6bb>::operator()                                                                                                            qmljsoutline.cpp        139  0x7ffe2a5dda3b 
6   QtPrivate::FunctorCall<QtPrivate::IndexesList<>,QtPrivate::List<>,void,<lambda_dbfa9012c3dd9200159099c86c83c6bb>>::call                                          qobjectdefs_impl.h      137  0x7ffe2a5de0d8 
7   QtPrivate::Functor<<lambda_dbfa9012c3dd9200159099c86c83c6bb>,0>::call<QtPrivate::List<>,void>                                                                    qobjectdefs_impl.h      195  0x7ffe2a5dca52 
8   QtPrivate::QFunctorSlotObject<<lambda_dbfa9012c3dd9200159099c86c83c6bb>,0,QtPrivate::List<>,void>::impl                                                          qobject_impl.h          174  0x7ffe2a5dea27 
9   QtPrivate::QSlotObjectBase::call                                                                                                                                 qobject_impl.h          101  0x6bf31238     
10  QMetaObject::activate                                                                                                                                            qobject.cpp             3728 0x6bf1fd18     
11  QMetaObject::activate                                                                                                                                            qobject.cpp             3603 0x6bf1f5e8     
12  QmlJSEditor::Internal::QmlOutlineModel::updated                                                                                                                  moc_qmloutlinemodel.cpp 129  0x7ffe2a63a2b1 
13  QmlJSEditor::Internal::QmlOutlineModel::update                                                                                                                   qmloutlinemodel.cpp     464  0x7ffe2a5e0d56 
14  QmlJSEditor::Internal::QmlJSEditorDocumentPrivate::updateOutlineModel                                                                                            qmljseditordocument.cpp 585  0x7ffe2a63505d 
15  QtPrivate::FunctorCall<QtPrivate::IndexesList<>,QtPrivate::List<>,void,void (__cdecl QmlJSEditor::Internal::QmlJSEditorDocumentPrivate:: *)(void) __ptr64>::call qobjectdefs_impl.h      143  0x7ffe2a6376cc 
16  QtPrivate::FunctionPointer<void (__cdecl QmlJSEditor::Internal::QmlJSEditorDocumentPrivate:: *)(void) __ptr64>::call<QtPrivate::List<>,void>                     qobjectdefs_impl.h      163  0x7ffe2a635607 
17  QtPrivate::QSlotObject<void (__cdecl QmlJSEditor::Internal::QmlJSEditorDocumentPrivate:: *)(void) __ptr64,QtPrivate::List<>,void>::impl                          qobject_impl.h          121  0x7ffe2a63822e 
18  QtPrivate::QSlotObjectBase::call                                                                                                                                 qobject_impl.h          101  0x6bf31238     
19  QMetaObject::activate                                                                                                                                            qobject.cpp             3728 0x6bf1fd18     
20  QMetaObject::activate                                                                                                                                            qobject.cpp             3603 0x6bf1f5e8     
... <Mehr>