Fixed #19880 - Fixed an error in the form wizard initial_dict example.

        ...     '0': {'subject': 'Hello', 'sender': 'user@example.com'},

        ...     '1': {'message': 'Hi there!'}

        ... }

        >>> wiz = ContactWizard.as_view([ContactForm1, ContactForm2], initial_dict=initial)

        >>> # This example is illustrative only and isn't meant to be run in

        >>> # the shell since it requires an HttpRequest to pass to the view.

        >>> wiz = ContactWizard.as_view([ContactForm1, ContactForm2], initial_dict=initial)(request)

        >>> form1 = wiz.get_form('0')

        >>> form2 = wiz.get_form('1')

        >>> form1.initial