DragHandler in a Controls 2 Button: can't click the button

import QtQuick 2.0
import Qt.labs.handlers 1.0
import QtQuick.Controls 2.2

ApplicationWindow {
    visible: true
    width: 200; height: 200
    Button {
        width: 100; height: 50
        text: "Drag me"
        onClicked: console.log("clicked")
        DragHandler { }
    }
}

void QQuickWindowPrivate::deliverMatchingPointsToItem(QQuickItem *item, QQuickPointerEvent *pointerEvent, bool handlersOnly) {
    ...
     if (pointerEvent->allPointsAccepted() && !pointerEvent->isReleaseEvent()) 
        return;
    ....
}