title: Django FormWizard Dynamically Alter form_list
body: <p>I'm having some issues with the form wizard, that maybe someone can shed some light on.  According docstring in the method process_step: I can "dynamically alter self.form_list".  So, based on my project needs, I'm appending forms to the form_list.  The forms I'm appending contain questions and answers: <a href="http://dpaste.com/hold/152201/" rel="nofollow noreferrer">http://dpaste.com/hold/152201/</a></p>
  
  <p>The issue is that when 2 people hit the formwizard at the same time, they start to see each others questions and answers.  I guess I don't understand how process_step suggests I can dynamically alter the form_list, when by doing so I'm modifying the form list of another user.
   Is the form_list a shared object among visitors hitting the formwizard url defined in urls.py? I've seen this issue under apache2/prefork/worker/mod_wsgi, and while running the app with runserver.</p>