Custom menu item does not work.

[Dmitriano]

My menu item stopped opening after migrating to QT6.2:

                                Menu
                                {
                                    title: qsTr("Scene Test")

                                    TestMenuItem {
                                        text: qsTr("Off")
                                        testId: 0
                                    }

                                    TestMenuItem {
                                        text: qsTr("Lighted Cube")
                                        testId: 1
                                    }

                                    TestMenuItem {
                                        text: qsTr("Colored Cube")
                                        testId: 2
                                    }
                                }

My custom menu item in TestMenuItem.qml:

import QtQuick 2.7
import QtQuick.Controls 2.3
import QtQuick.Layouts 1.3
import QtQuick.Window 2.2

MenuItem
{
    property int testId

    checkable: true

    checked: scene.testMode === testId

    onTriggered: scene.testMode = testId
}

Clicking on Scene Test item does not have an effect.

It worked previously in QT 5.15.2.

And it works in QT6.2 without my custom menu item:

                                Menu
                                {
                                    title: qsTr("Scene Test")

                                    MenuItem
                                    {
                                        checkable: true
                                        checked: scene.testMode === 0
                                        onTriggered: scene.testMode = 0
                                        text: qsTr("Off")
                                    }

                                    MenuItem
                                    {
                                        checkable: true
                                        checked: scene.testMode === 1
                                        onTriggered: scene.testMode = 1
                                        text: qsTr("Lighted Cube")
                                    }

                                    MenuItem
                                    {
                                        checkable: true
                                        checked: scene.testMode === 2
                                        onTriggered: scene.testMode = 2
                                        text: qsTr("Colored Cube")
                                    }
                                }

What changed in QT6.2?