title: How do I register a model that is already registered in admin?
body: <p>I am trying to change the field order in the admin of a field in a django package (rest framework)</p>
  
  <p>I define a new adminmanager, but get a 'Model Already Registered' Error. Surely there must be a way to do it?</p>
  
  <pre><code>from rest_framework.authtoken.models import Token
  class AuthTokenAdmin(admin.ModelAdmin):
      list_display = ('user', 'key',)
  
  
  admin.site.register(Token, AuthTokenAdmin)
  </code></pre>