QML scene shown inside QQuickWidget doesn't get QHoverEvent when cursor leaves the widget

import QtQuick 2.3

Rectangle {
    color: mouseArea.containsMouse ? "red" : "green"
    MouseArea {
        id: mouseArea
        hoverEnabled: true
        anchors.fill: parent
    }
}

#include <QApplication>
#include <QQuickView>
#include <QQuickWindow>
#include <QQuickWidget>

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    // This approach, commented out, works as intended
    /*
    QQuickView *v = new QQuickView(QUrl("qrc:/Example.qml"));
    v->setResizeMode(QQuickView::SizeRootObjectToView);
    QWidget *w = QWidget::createWindowContainer(v);
    w->show();
    */


    // This way the MouseArea does not get an event
    // when cursor leaves the widget.

    QQuickWidget *w = new QQuickWidget(QUrl("qrc:/Example.qml"));
    w->setResizeMode(QQuickWidget::SizeRootObjectToView);
    w->show();

    return app.exec();
}