On some albums/releases picard stays showing the "[loading album information]" forever.
One of these albums/releases is this one: http://musicbrainz.org/release/25696ae2-9c2f-4f81-99ec-69e3042c8dfe
But it also happens with others.
when I run it from the command line it shows following error:

Traceback (most recent call last):
File "/usr/lib/picard/picard/webservice.py", line 289, in _process_reply
handler(document, reply, error)
File "/usr/lib/picard/picard/album.py", line 174, in _release_request_finished
self._finalize_loading(error)
File "/usr/lib/picard/picard/album.py", line 223, in _finalize_loading
track = self._finalize_loading_track(track_node, mm, artists, va, absolutetracknumber)
File "/usr/lib/picard/picard/album.py", line 294, in _finalize_loading_track
track._customize_metadata()
File "/usr/lib/picard/picard/track.py", line 124, in _customize_metadata
self._convert_folksonomy_tags_to_genre()
File "/usr/lib/picard/picard/track.py", line 142, in _convert_folksonomy_tags_to_genre
taglist.append((100 * count / maxcount, name))
ZeroDivisionError: integer division or modulo by zero

I managed to correct the error (I don't know if this is the right way) by adding following line to /usr/lib/picard/picard/track.py:142

if maxcount != 0:

so it looks like this:

def _convert_folksonomy_tags_to_genre(self):

1. Combine release and track tags
   tags = dict(self.folksonomy_tags)
   self.merge_folksonomy_tags(tags, self.album.folksonomy_tags)
   if self.album.release_group:
   self.merge_folksonomy_tags(tags, self.album.release_group.folksonomy_tags)
   if not tags:
   return
2. Convert counts to values from 0 to 100
   maxcount = max(tags.values())
   taglist = []
   for name, count in tags.items():
   if maxcount != 0:
   taglist.append((100 * count / maxcount, name))
   taglist.sort(reverse=True)
3. And generate the genre metadata tag
   maxtags = config.setting['max_tags']
   minusage = config.setting['min_tag_usage']
   ignore_tags = config.setting['ignore_tags']
   genre = []
   for usage, name in taglist[:maxtags]:
   if name in ignore_tags:
   continue
   if usage < minusage:
   break
   name = _TRANSLATE_TAGS.get(name, name.title())
   genre.append(name)
   join_tags = config.setting['join_tags']
   if join_tags:
   genre = [join_tags.join(genre)]
   self.metadata['genre'] = genre

should I make a github fork + pull request?