Assertion failure in QQmlMetaObject::canConvert()

import QtQuick 2.2
import QtQuick.Window 2.2
import QtQuick.Controls 1.2

Window {
    id: window
    width: 320
    height: 200
    visible: true

    // property var or QtObject doesn't crash
    property Menu menu

    Binding {
        target: window
        property: "menu"
        value: Menu { }
    }
}

0	raise	/lib64/libc.so.6		0x7ffff4d79887	
1	abort	/lib64/libc.so.6		0x7ffff4d7af78	
2	qt_message_fatal	qlogging.cpp	1407	0x7ffff5e51e1d	
3	QMessageLogger::fatal	qlogging.cpp	635	0x7ffff5e4e8f2	
4	qt_assert	qglobal.cpp	2808	0x7ffff5e488d8	
5	QQmlMetaObject::canConvert	qqmlpropertycache.cpp	1586	0x7ffff66d79ec	
6	QQmlPropertyPrivate::write	qqmlproperty.cpp	1328	0x7ffff667de19	
7	QQmlPropertyPrivate::writeValueProperty	qqmlproperty.cpp	1238	0x7ffff667d5bd	
8	QQmlPropertyPrivate::writeValueProperty	qqmlproperty.cpp	1204	0x7ffff667d3bf	
9	QQmlPropertyPrivate::write	qqmlproperty.cpp	1711	0x7ffff667ff36	
10	QQmlProperty::write	qqmlproperty.cpp	1633	0x7ffff667fd15	
11	QQmlBind::eval	qqmlbind.cpp	298	0x7ffff6762cad	
12	QQmlBind::componentComplete	qqmlbind.cpp	267	0x7ffff6762aee	
13	QQmlObjectCreator::finalize	qqmlobjectcreator.cpp	1227	0x7ffff6719603	
14	QQmlComponentPrivate::complete	qqmlcomponent.cpp	928	0x7ffff668364b	
15	QQmlComponentPrivate::completeCreate	qqmlcomponent.cpp	964	0x7ffff6683730	
16	QQmlComponent::completeCreate	qqmlcomponent.cpp	957	0x7ffff66836e2	
17	QQmlComponent::create	qqmlcomponent.cpp	791	0x7ffff6682f1f	
18	QQmlApplicationEnginePrivate::_q_finishLoad	qqmlapplicationengine.cpp	130	0x7ffff670a605	
19	QQmlApplicationEnginePrivate::startLoad	qqmlapplicationengine.cpp	109	0x7ffff670a3ad	
20	QQmlApplicationEngine::load	qqmlapplicationengine.cpp	246	0x7ffff670a909	
...	<More>