When the repeater is used as the contentItem of the menu, all items are invisible

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

ApplicationWindow {
    width: 640
    height: 480
    visible: true
    title: "QTBUG-104470 | contentY=" + flickable.contentItem.y

    Menu {
        id: menu
        visible: true        
        contentItem: FocusScope {
            implicitHeight: flickable.height            
            Button {
                anchors {
                    top: parent.top
                    topMargin: 5
                    horizontalCenter: parent.horizontalCenter
                }
                z: 1
                text: "Button Up"
            }            

            Flickable {
                id: flickable
                width: parent.width
                height: Math.min(contentHeight, 300)
                contentHeight: repeaterLayout.implicitHeight
                clip: true                
                ScrollIndicator.vertical: ScrollIndicator {} 
               
                ColumnLayout {
                    id: repeaterLayout
                    width: parent.width                    
                    Repeater {
                        model: menu.contentModel
                    }
                }
            }            
            Button {
                anchors {
                    bottom: parent.bottom
                    bottomMargin: 5
                    horizontalCenter: parent.horizontalCenter
                }
                z: 1
                text: "Button Down"
            }
        }        

        Repeater {
            model: 40
            MenuItem {
                objectName: "Item: " + modelData
                text: objectName
            }
        }
    }
}