ComboBox: incorrect height

import QtQuick 2.2
import QtQuick.Controls 1.1

ApplicationWindow {
    visible: true
    width: 200
    height: 200
    title: qsTr("Hello World")

    ComboBox {
        anchors.centerIn: parent
        textRole: "text"

        editable: false
        model: ListModel {
            ListElement { text: "Aaaa" }
            ListElement { text: "Bbbb" }
            ListElement { text: "Cccc" }
        }
    }
}