ensure that TouchPoints always have velocity

import QtQuick 2.0
import QtQuick.Window 2.0

Window {
    width: 640; height: 480; color: "black"; visible: true

    Rectangle {
        anchors.fill: parent
        anchors.margins: 50

        MultiPointTouchArea {
            anchors.fill: parent
            minimumTouchPoints: 1; maximumTouchPoints: 5
            touchPoints: [
                TouchPoint { id: touch1
                    onXChanged: console.log("pressed " + pressed + " velocity " + velocity)
                }
            ] }
    }
}