QQuickPopupPositioner uses wrong bounds when Window.contentOrientation == Screen.orientation

import QtQuick
import QtQuick.Controls.Basic

Window {
    width: 640
    height: 480
    visible: true
    contentOrientation: orientationButton.checked? Screen.orientation : Qt.PrimaryOrientation

    Button {
        id: orientationButton
        text: checked ? "LandscapeOrientation" : "PrimaryOrientation"
        checkable: true
    }

    ComboBox {
        y: parent.height/2
        model: ["Alpha", "Bravo", "Charlie"]
    }
}

if (p->window->contentOrientation() == Qt::LandscapeOrientation || p->window->contentOrientation() == Qt::InvertedLandscapeOrientation)
	bounds = bounds.transposed();