When trying to load the following release with the "use folksonomy tags as a genre" option activated:
http://beta.musicbrainz.org/release/268b37e9-97c5-4235-99bc-85935625f63f

I get the following error message in picard.exe.log:

ZeroDivisionError: integer division or modulo by zero
Traceback (most recent call last):
File "picard\webservice.pyo", line 291, in _process_reply
File "picard\coverart\providers\caa.pyo", line 194, in _caa_json_downloaded
File "picard\coverart\providers_init_.pyo", line 81, in next_in_queue
File "picard\coverart_init_.pyo", line 141, in download_next_in_queue
File "picard\coverart_init_.pyo", line 141, in download_next_in_queue
File "picard\coverart_init_.pyo", line 141, in download_next_in_queue
File "picard\coverart_init_.pyo", line 145, in download_next_in_queue
File "picard\album.pyo", line 223, in _finalize_loading
File "picard\album.pyo", line 294, in _finalize_loading_track
File "picard\track.pyo", line 124, in _customize_metadata
File "picard\track.pyo", line 142, in _convert_folksonomy_tags_to_genre

The line 143 is for Picard 1.3.2:
taglist.append((100 * count / maxcount, name))

We can note also for that release this current status at this stage:

• some tags have been added at the recording level
• there is no tag at the release level
• there is not tag at the release group level

And, with that current status:

• If I add a tag at the release or release group level, it loads properly.
• If I remove that tag I receive again that divide by zero error message.