Produits Entr'ouvert » Authentic 2

J'ai cliqué sur le lien en #20169 (alors que je n'étais pas loggué) et j'ai obtenu cette trace :

Internal Server Error: /login/
Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/django/core/handlers/base.py", line 132, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/usr/lib/python2.7/dist-packages/django/views/decorators/csrf.py", line 58, in wrapped_view
    return view_func(*args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/django/utils/decorators.py", line 110, in _wrapped_view
    response = view_func(request, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/django/views/decorators/cache.py", line 57, in _wrapped_view_func
    response = view_func(request, *args, **kwargs)
  File "/usr/lib/python2.7/dist-packages/authentic2/views.py", line 270, in login
    request, service_slug=request.GET.get(constants.SERVICE_FIELD_NAME))
  File "/usr/lib/python2.7/dist-packages/authentic2/utils.py", line 654, in get_registration_url
    include=(constants.NONCE_FIELD_NAME,), resolve=False)
  File "/usr/lib/python2.7/dist-packages/authentic2/utils.py", line 279, in make_url
    url_params = QueryDict(query_string=query_string, mutable=True)
  File "/usr/lib/python2.7/dist-packages/django/http/request.py", line 358, in __init__
    value = value.decode(encoding)
  File "/usr/lib/python2.7/encodings/utf_8.py", line 16, in decode
    return codecs.utf_8_decode(input, errors, True)
UnicodeEncodeError: 'ascii' codec can't encode characters in position 1-2: ordinal not in range(128)