QTableView create extra row

I am porting some code from qt5 to qt6

and I found that QTableView will create 1 extra row when I insert 1 row

I have MyModel and QIdentityProxyModel with setSourceModel to MyModel

and another QIdentityProxyModel with setSourceModel  to prev QIdentityProxyModel 

Like this:

QIdentityProxyModel -> QIdentityProxyModel ->MyModel 

And another important think is 

horizontalHeader()->setSectionResizeMode( 1, QHeaderView::ResizeToContents );

All works fine with just 1 QIdentityProxyModel 

or  if I remove setSectionResizeMode( 1, QHeaderView::ResizeToContents );

All works fine in Qt6.3.2, 6.3.0