Qt.labs.platform.Menu opens at the wrong location with scaling enabled

import QtQuick
import Qt.labs.platform

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    MouseArea {
        anchors.fill: parent
        onClicked: menu.open()
    }

    Menu {
        id: menu
        MenuItem {
            text: "test1"
        }
    }
}