QML AbstractButton.text requires extra ampersand escaping &&&

import QtQuick.Controls 2.12 as QQC2
import QtQuick.Layouts 1.14 as L

L.ColumnLayout {
    // OK: Label does not parse for ampersands
    QQC2.Label  { text: "Rock & Roll" }

    // Err: amp is not shown, space is a shortcut
    QQC2.Button { text: "Rock && Roll" }

    // OK: Looks like on a label
    QQC2.Button { text: "Rock &&& Roll" }

    // OK: R is shortcut
    QQC2.Button { text: "Rock &&& &&Roll" }
}