Universal style ItemDelegate missing implicit background height

import QtQuick 2.12
import QtQuick.Controls 2.12

ApplicationWindow {
    width: 640
    height: 480
    visible: true

    ListView {
        model: 100
        anchors.fill: parent
        delegate: ItemDelegate {
            text: "foo"
            width: parent.width
            onClicked: text = ""
        }
    }
}