[traceback] multiple objects returned error for /en-US/badges/tag/Slovenija

[willkg]

I keep seeing these in the server error emails:

Traceback (most recent call last):

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/views/generic/base.py", line 69, in view
    return self.dispatch(request, *args, **kwargs)

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/views/generic/base.py", line 87, in dispatch
    return handler(request, *args, **kwargs)

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/views/generic/list.py", line 137, in get
    self.object_list = self.get_queryset()

  File "/data/www/badges.mozilla.org/badges/badger/views.py", line 80, in get_queryset
    tag = get_object_or_404(Tag, name=tag_name)

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/shortcuts/__init__.py", line 113, in get_object_or_404
    return queryset.get(*args, **kwargs)

  File "/data/www/badges.mozilla.org/badges/virtualenv/lib/python2.6/site-packages/django/db/models/query.py", line 313, in get
    (self.model._meta.object_name, num))

MultipleObjectsReturned: get() returned more than one Tag -- it returned 2!