Qt::AA_MacDontSwapCtrlAndMeta has no effect

    app.setAttribute(Qt::AA_MacDontSwapCtrlAndMeta);
    app.installEventFilter(new EventFilter());

class EventFilter : public QObject
{
protected:
    bool eventFilter(QObject *obj, QEvent *event)
    {
        if (event->type() == QEvent::KeyPress) {
            QKeyEvent *keyEvent = static_cast<QKeyEvent *>(event);
            Qt::KeyboardModifiers modifiers = keyEvent->modifiers();
            if (qApp->testAttribute(Qt::AA_MacDontSwapCtrlAndMeta))
                qDebug() << modifiers;
        return QObject::eventFilter(obj, event);
    }
}
};