API crash on requests for releases (with userid)

[leshow]

I'm trying to request all releases in an account after this id

https://muspy.com/api/1/releases/***useridhere****/?since=1319ef80-c4de-42dc-9973-8e5ea781f327

this is the error the api gives me:

Piston/0.2.3rc1 (Django 1.3.7) crash report: Traceback (most recent call last): File "/usr/home/alex/muspy/api/handlers.py", line 180, in read release = ReleaseGroup.objects.get(mbid=since) File "/usr/home/alex/muspy/env/lib/python2.7/site-packages/django/db/models/manager.py", line 132, in get return self.get_query_set().get(_args, *_kwargs) File "/usr/home/alex/muspy/env/lib/python2.7/site-packages/django/db/models/query.py", line 351, in get % (self.model._meta.object_name, num, kwargs)) MultipleObjectsReturned: get() returned more than one ReleaseGroup -- it returned 2! Lookup parameters were {'mbid': u'1319ef80-c4de-42dc-9973-8e5ea781f327'}