LinearGradient "end" property getting ignored

[vikramg]

Trying the example under LinearGradient here:

http://doc.qt.io/qt-5/qml-qtgraphicaleffects-lineargradient.html

using qmlscene, and it seems as though the "end" property takes no effect. I am unable to verify the output shown on that page with the angled gradient (with end: Qt.point(300, 300)). I get a vertical gradient no matter what values I try for the end point. What's going on here? Here's the code I'm trying (just copied from the link above):

import QtQuick 2.0
import QtGraphicalEffects 1.0

Item {
    width: 300
    height: 300

    LinearGradient {
        anchors.fill: parent
        start: Qt.point(0, 0)
        //end: Qt.point(0, 300)
        end: Qt.point(300, 300)
        gradient: Gradient {
            GradientStop { position: 0.0; color: "white" }
            GradientStop { position: 1.0; color: "black" }
        }
    }
}

I'm using Qt 5.6 (although qmlscene from 5.5 shows the same thing).