Slider: Wrong handle position on vertical orientation

import QtQuick 2.2
import QtQuick.Controls 1.1

Item {
    width: 640
    height: 480

    Slider {
        anchors.fill: parent
        orientation: Qt.Vertical
        minimumValue: 0
        maximumValue: 100
        stepSize: 1
        value: 100
    }
}