Overlay.rotation gets discarded when window is resized

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Controls 2.15

Window {
    id: window
    width: 640
    height: 480
    visible: true
    Overlay.overlay.rotation: slider.value

    Column {
        Slider {
            id: slider
            from: 0
            to: 360
        }
        Text { text: `Rotation: ${slider.value.toFixed(1)}°` }
    }

    Popup {
        id: popup
        anchors.centerIn: parent
        width: 320
        height: 240
        modal: false
        closePolicy: Popup.NoAutoClose

        Text {
            anchors.centerIn: parent
            text: "Hello"
        }
    }
    Component.onCompleted: popup.open()
}

Overlay.overlay.transform: Rotation {
    angle: slider.value
    origin.x: window.Overlay.overlay.width / 2
    origin.y: window.Overlay.overlay.height / 2
}