Crash in QQmlObjectCreator::setupBindings

import QtQuick 2.0
import QtQuick.Window 2.1

Window {
    component TestPopup: Window {
        visibility: Window.Windowed
    }
    TestPopup { color: "blue" }
}

gdb --args ./Work/Qt/6.0.1/gcc_64/bin/qml testwindowvis.qml
...
(gdb) bt
#0  0x00007ffff7b34769 in QQmlObjectCreator::setupBindings(bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#1  0x00007ffff7b30375 in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#2  0x00007ffff7b31d1a in QQmlObjectCreator::createInstance(int, QObject*, bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#3  0x00007ffff7b35c5f in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#4  0x00007ffff7b32624 in QQmlObjectCreator::createInstance(int, QObject*, bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#5  0x00007ffff7b34556 in QQmlObjectCreator::setPropertyBinding(QQmlPropertyData const*, QV4::CompiledData::Binding const*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#6  0x00007ffff7b34b85 in QQmlObjectCreator::setupBindings(bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#7  0x00007ffff7b30375 in QQmlObjectCreator::populateInstance(int, QObject*, QObject*, QQmlPropertyData const*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#8  0x00007ffff7b31d1a in QQmlObjectCreator::createInstance(int, QObject*, bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#9  0x00007ffff7b35c5f in QQmlObjectCreator::create(int, QObject*, QQmlInstantiationInterrupt*, int) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#10 0x00007ffff7ac33b0 in QQmlComponentPrivate::beginCreate(QQmlRefPointer<QQmlContextData>) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#11 0x00007ffff7ac3539 in QQmlComponent::beginCreate(QQmlContext*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#12 0x00007ffff7abfaeb in QQmlComponentPrivate::doBeginCreate(QQmlComponent*, QQmlContext*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#13 0x00007ffff7abfb29 in QQmlComponent::create(QQmlContext*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#14 0x00007ffff7ab14a3 in QQmlApplicationEnginePrivate::finishLoad(QQmlComponent*) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#15 0x00007ffff7ab1ade in QQmlApplicationEnginePrivate::startLoad(QUrl const&, QByteArray const&, bool) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6
#16 0x00007ffff7ab1c3c in QQmlApplicationEngine::load(QUrl const&) () at /home/rawoul/Work/Qt/6.0.1/gcc_64/bin/../lib/libQt6Qml.so.6

file:///home/rawoul/testwindowvis.qml:6:9: "Window.visibility" is not available in QtQuick 2.0.