QMenu clear does not delete nested menus

    #include <QApplication>
    #include <QToolButton>
    #include <QMainWindow>
    #include <QMenu>
    #include <QAction>
    #include <QDebug>
    #include <QHBoxLayout>
    #include <QPushButton>
    #include <QPointer>

    class MyAction : public QAction 
    {
        Q_OBJECT
    public:
        MyAction(const QString &nm, QObject* parent = {})
            : QAction(parent)
        {
            m_name = nm;
            setText(nm);
        }

    private:
        QString m_name;
    };

    class MyWidget : public QWidget
    {
        Q_OBJECT
    public:
        MyWidget(QWidget* parent = {})
          : QWidget(parent)
        {
            auto toolbutton = new QToolButton(this);
            toolbutton->setText("Tool");
            toolbutton->setPopupMode(QToolButton::InstantPopup);

            auto layout = new QHBoxLayout(this);
            layout->addWidget(toolbutton);

            m_newComponentMenu = new QMenu("MyMenu", toolbutton);
            toolbutton->setMenu(m_newComponentMenu);

            m_action1 = new MyAction("action1", m_newComponentMenu);
            m_newComponentMenu->addAction(m_action1.data());

            m_nestedMenu = new QMenu("Nested", m_newComponentMenu);
            m_newComponentMenu->addMenu(m_nestedMenu);
        
            m_action2 = new MyAction("action2", m_nestedMenu.data());
            m_nestedMenu->addAction(m_action2.data());

            auto clearButton = new QPushButton("Clear");
            layout->addWidget(clearButton);
            connect(clearButton, &QPushButton::clicked, this, &MyWidget::clear);
        }

    private Q_SLOTS:
        void clear()
        {
            qDebug() << "\n";
            qDebug() << "Actions before" << m_newComponentMenu->actions();
            qDebug() << "Action1 before:" << m_action1.data();
            qDebug() << "Nested menu before:" << m_nestedMenu.data();
            qDebug() << "Action2 before:" << m_action2.data();

            m_newComponentMenu->clear();

            qDebug() << "\n";
            qDebug() << "Actions after:" << m_newComponentMenu->actions();
            qDebug() << "Action1 after:" << m_action1.data();
            qDebug() << "Nested menu after:" << m_nestedMenu.data();
            qDebug() << "Action2 after:" << m_action2.data();
        }

    private:
        QMenu* m_newComponentMenu;
        QPointer<MyAction> m_action1;
        QPointer<MyAction> m_action2;
        QPointer<QMenu> m_nestedMenu;
    };

    int main(int argc, char** argv)
    {
        QApplication app(argc, argv);

        MyWidget mw;
        mw.resize(400, 400);
        mw.show();

        return app.exec();
    }

    #include "nestedmenumemory.moc"

    Actions after: ()
    Action1 after: QAction(0x0)
    Nested menu after: QMenu(0x0)
    Action2 after: QAction(0x0)

    Actions after: ()
    Action1 after: QAction(0x00)
    Nested menu after: QMenu(0x25ebadadf90)
    Action2 after: QAction(0x25ebad93140 text="action2" toolTip="action2" menuRole=TextHeuristicRole visible=true)