Menu::popup() misinterprets mouse position when QQuickView is embedded in a QWidget

// MenuScene.qml
import QtQuick 2.1
import QtQuick.Controls 1.0

Rectangle {
	id: root
	width: 800
	height: 600

	Menu {
		id: rootMenu
		MenuItem {text: "Item 1"}
		MenuItem {text: "Item 2"}
	}

	MouseArea {
		anchors.fill: parent
		onClicked: rootMenu.popup()
	}
}

// widget.cpp
Widget::Widget(QWidget *parent): QWidget(parent)
{
	QQuickView* view = new QQuickView(QUrl("MenuScene.qml"));
	view->setResizeMode(QQuickView::SizeRootObjectToView);

	QVBoxLayout *layout = new QVBoxLayout();
	layout->addWidget(QWidget::createWindowContainer(view));
	this->setLayout(layout);
}