QML DropArea: Unable to reject external drag enter events, DropArea broken after that

The following code seems to break QML DropArea as soon as you've dragged something into it once.

How to reproduce:

• Drag something into area
• Notice that 'entered' is printed on the console
• Drag something into area again
• 'entered' is not printed again

Expected behavior:

• 'entered' is printed each time something is dragged into the area

import QtQuick 2.2

Rectangle {
    id: rect
    width: 200
    height: 200

    anchors.fill: parent
    DropArea {
        anchors.fill: parent
        onEntered: {
            console.log("entered");
            drag.accepted = false;
        }
    }
}