How do I access that the movement of a QML ScrollView has ended?

I would like to do something the moment the scrolling of a QML ScrollView has ended. From the documentation I assume that flickableItem.onMovementEnded is what I'm looking for but I never get that signal. Am I understanding "Movement" wrong? I have written this minimal QML application and my console.log gets never called. I run this on a Mac with Qt 5.7 or 5.5.1.

import QtQuick 2.5
import QtQuick.Controls 1.4

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    ScrollView {
        id: scrollView

        anchors.fill: parent

        flickableItem.onMovementEnded: {
            console.log("onMovementEnded")
        }

        Rectangle {
            id: rect

            width: 3000
            height: 3000
        }
    }

}

I also tried to connect it via "Connections" with no luck.

Connections {
    target: scrollView.flickableItem
    onMovementEnded: {
        console.log("onMovementEnded")
    }
}

Based on @ddriver's input, I build a solution using onContentYChanged and a Timer. This is sufficient for me even though it is not perfect.

import QtQuick 2.5
import QtQuick.Controls 1.4

ApplicationWindow {
    visible: true
    width: 640
    height: 480
    title: qsTr("Hello World")

    ScrollView {
        id: scrollView

        anchors.fill: parent

        flickableItem.onContentXChanged: {
            updateContentDelay.restart()
        }

        flickableItem.onContentYChanged: {
            updateContentDelay.restart()
        }

        Rectangle {
            id: rect

            width: 3000
            height: 3000
        }
    }

    Timer {
        id: updateContentDelay
        interval: 200
        repeat: false

        onTriggered: {
            console.log("do something")
        }
    }

}