Error editing and existing form

[twcook]

Installed from github master on 28 May, 2014 (but it was in earlier versions as well).

To reproduce the error:
Create a form with one field, save it.
Select the form from the admin listing.
Add a second field and Save it.
This save doesn't succeed. I get: MultiValueDictKeyError

Details below.

Thanks,
Tim

Environment:
Request Method: POST
Request URL: http://192.168.1.9:8080/admin/forms/form/1/

Django Version: 1.6.5
Python Version: 3.3.2
Installed Applications:
('django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.sites',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.admin',
'django.contrib.admindocs',
'authtools',
'ccdgen',
'south',
'paypal_connect',
'debug_toolbar',
'ccd_forms',
'forms_builder.forms')
Installed Middleware:
('debug_toolbar.middleware.DebugToolbarMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.locale.LocaleMiddleware',
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware')

Traceback:
File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/core/handlers/base.py" in get_response

1.                 response = wrapped_callback(request, _callback_args, *_callback_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/contrib/admin/options.py" in wrapper

2.             return self.admin_site.admin_view(view)(_args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/decorators.py" in _wrapped_view

3.                 response = view_func(request, _args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/views/decorators/cache.py" in _wrapped_view_func

4.     response = view_func(request, _args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/contrib/admin/sites.py" in inner

5.         return view(request, _args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/decorators.py" in _wrapper

6.         return bound_func(_args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/decorators.py" in _wrapped_view

7.                 response = view_func(request, _args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/decorators.py" in bound_func

8.             return func(self, _args2, *_kwargs2)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/db/transaction.py" in inner

9.             return func(_args, *_kwargs)
   

   File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/contrib/admin/options.py" in change_view

10.         if all_valid(formsets) and form_validated:
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in all_valid

11.     if not formset.is_valid():
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in is_valid

12.     err = self.errors
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in errors

13.         self.full_clean()
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in full_clean

14.         form = self.forms[i]
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/functional.py" in get

15.     res = instance.**dict**[self.func.**name**] = self.func(instance)
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in forms

16.     forms = [self._construct_form(i) for i in xrange(self.total_form_count())]
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/formsets.py" in

17.     forms = [self._construct_form(i) for i in xrange(self.total_form_count())]
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/models.py" in _construct_form

18.     form = super(BaseInlineFormSet, self)._construct_form(i, **kwargs)
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/forms/models.py" in _construct_form

19.         pk = self.data[pk_key]
    

    File "/home/tim/MLHIM/git/CCD-Gen2/lib/python3.3/site-packages/django/utils/datastructures.py" in getitem

20.         raise MultiValueDictKeyError(repr(key))
    

Exception Type: MultiValueDictKeyError at /admin/forms/form/1/
Exception Value: "'fields-0-id'"

[stephenmcd]

Can't reproduce.