Changing model on Tumbler when it has currentIndex == 1 creates ghost of previous current item

import QtQuick 2.5
import Qt.labs.controls 1.0

ApplicationWindow {
    visible: true
    width: 640
    height: 480

    Rectangle {
        height: tumbler.implicitHeight
        width: tumbler.implicitWidth
        anchors.centerIn: parent
        border {
            color: "black"
            width: 1
        }

        Tumbler {
            id: tumbler

            anchors.centerIn: parent
            model: [0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23]
            currentIndex: 1
        }
    }

    Button {
        anchors.bottom: parent.bottom
        anchors.horizontalCenter: parent.horizontalCenter
        text: "Change model"
        onClicked: tumbler.model = [ 21, 22, 23 ]
    }
}