Drag attached property crashes when item it's attached to is destroyed

import QtQuick 2.8
import QtQuick.Window 2.2

Window {
    visible: true
    width: 640
    height: 480

    Timer {
        id: destroyTimer
        interval: 1000
        onTriggered: repeater.model = 0
    }

    Repeater {
        id: repeater
        model: 1

        Rectangle {
            width: 100
            height: 100
            color: "#f0f"

            Drag.active: dragArea.drag.active
            Drag.dragType: Drag.Automatic
            Drag.onDragStarted: destroyTimer.start()

            MouseArea {
                id: dragArea
                anchors.fill: parent
                drag.target: parent
            }
        }
    }

    DropArea {
        width: 100
        height: 100
        y: 100

        Rectangle {
            anchors.fill: parent
            color: "#999"

            Text {
                text: "Drop here"
            }
        }
    }
}