Flickable::maxYExtent reports wrong value when contentHeight < height

import QtQuick 2.0

Item {
    width: 800; height: 600

    Rectangle {
        anchors.bottom: parent.bottom
        width: parent.width
        height: 200
        color: "blue"
    }

    Row {

        ListView {
            id: listView
            width: 400; height: 400
            model: 1

            delegate: Rectangle {
                width: 400
                height: 200
                color: "green"

                Text {
                    anchors.centerIn: parent
                    color: "white"
                    text: "ListView"
                }
            }

            children: [
                Rectangle {
                    anchors.right: parent.right
                    y: listView.visibleArea.yPosition * listView.height
                    width: 10
                    height: listView.visibleArea.heightRatio * listView.height
                    color: "black"
                }
            ]
        }

        Flickable {
            id: flickable
            width: 400; height: 400
            contentHeight: 200
            contentWidth: 400

            Rectangle {
                width: 400
                height: 200
                color: "red"

                Text {
                    anchors.centerIn: parent
                    color: "white"
                    text: "Flickable"
                }
            }

            children: [
                Rectangle {
                    anchors.right: parent.right
                    y: flickable.visibleArea.yPosition * flickable.height
                    width: 10
                    height: flickable.visibleArea.heightRatio * flickable.height
                    color: "black"
                }
            ]
        }
    }
}