Reloading the current tab after wizard run

(Version 6.0)

There exist various examples how to do that with e.g.

    def end(self):
        return 'reload'

But this doesn’t work for me when the wizard is called from a form.

Looking at the client code it reveals

           if (self.current_view.view_type in ['tree', 'graph', 'calendar']
                   and not self.parent):

After commenting this clause reloading of the form seems to succeed.

Could anyone shed some light why reloading of view_type ‘form’ is not supported in the first place?

Thanks for your input!

Because reload is triggering a new search which is not possible in form view (because it may loose the current record).
But also because at the end of a wizard the screen is any way reloaded.