A simple animation eats 100% CPU on Windows, when Qt is compiled in debug

import QtQuick 2.2
import QtQuick.Window 2.1

Window {
    width: 360
    height: 360

    Rectangle {
        color: "red"
        width: parent.width / 2
        height: parent.height / 2
        anchors.centerIn: parent
        anchors.alignWhenCentered: true

        RotationAnimator on rotation {
            id: anim
            from: 0
            to: 360
            duration: 800
            loops: Animation.Infinite
        }
    }

    MouseArea {
        anchors.fill: parent
        onClicked: anim.running = !anim.running
    }
}