MenuItem with "visible: false" leaves behind empty entry

import QtQuick 2.0
import QtQuick.Controls 2.2

Rectangle {
    id: root
    width: 1024
    height: 768
    color: "blue"

    property bool showEntry: true

    Menu {
        id: testMenu

        MenuItem {
            text: "Static"
        }

        MenuItem {
            visible: root.showEntry
            text: "Dynamic"
        }
    }

    MouseArea {
        anchors.fill: parent
        onClicked: {
            root.showEntry = false
            testMenu.popup(mouse.x, mouse.y)
        }
    }
}