HorizontalHeaderView & VerticalHeaderView does not disconnect from QQmlTableModel::headerDataChanged and can crash app

If to TableModel connect/disconnect TableView with HorizontalHeaderView and/or VerticalHeaderView the QQmlTableModel::headerDataChanged signal will not be disconnected from TableVievs (even if TableView will be destroyed).

In app what I develop it crash after several minutes of using the app. I can not reproduce crash in demo app. Image below is crash from the app:

How to reproduce (connections leak not crash):

1. Build and run attached HeaderViewsConnectionsLeak project.
2. On application press several times Reload button.
3. On Application Output you can see more and more connections to signal:
   signal: headerDataChanged(Qt::Orientation,int,int)
   <functor or function pointer>
   ...
   SIGNALS IN
   <-- QQmlTableModel::unnamed <unknown>

Root cause:

The root cause is in qquickheaderview.cpp
Connect to &QAbstractItemModel::headerDataChanged is implemented as lambda but disconnect only from class instance:

// 
void QHeaderDataProxyModel::connectToModel()
{
    if (m_model.isNull())
        return;
    connect(m_model, &QAbstractItemModel::headerDataChanged,
        [this](Qt::Orientation orient, int first, int last) {
            if (orient != orientation())
                return;
            if (orient == Qt::Horizontal) {
                emit dataChanged(createIndex(0, first), createIndex(0, last));
            } else {
                emit dataChanged(createIndex(first, 0), createIndex(last, 0));
            }
        });
...
void QHeaderDataProxyModel::disconnectFromModel()
{
    if (m_model.isNull())
        return;
    m_model->disconnect(this);
}

 How to fix: 

Implement the connection to headerDataChanged as it is with all another slots in the method void QHeaderDataProxyModel::connectToModel()