Caught exception
Traceback (most recent call last):
  File "./coverart_redirect/server.py", line 67, in __call__
    response = CoverArtRedirect(self.config, conn).handle(request)
  File "./coverart_redirect/request.py", line 395, in handle
    return self.handle_release(request, mbid, filename)
  File "./coverart_redirect/request.py", line 333, in handle_release
    mbid, filename, self.thumbnail(filename))
  File "./coverart_redirect/request.py", line 58, in thumbnail
    id, size = filename.split('-')
ValueError: too many values to unpack (expected 2)