Qt Quick Controls Button: Unable to override Accessible.role

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

Window {
    width: 400
    height: 300
    visible: true
    title: qsTr("Accessibility Role Study")

    Column {
        Button {
            text: "Button"
            Accessible.role: Accessible.RadioButton
        }
        Rectangle {
            objectName: "Rectangle"
            width: 100
            height: 50
            color: "yellow"
            Accessible.role: Accessible.RadioButton
        }
    }
}