I noticed that lots of releases and release-groups are losing tags

MusicBrainz
1

Hi All, I noticed that lots of releases and release-groups are losing tags that they previously had.
for example -

https://musicbrainz.org/release/1bd704bf-d6bb-4476-8d56-d4d55d07eaa6
https://musicbrainz.org/release-group/3a4a07b6-780a-38d3-8dc3-c1feb95a71d7

these previously had tags - Synth-pop, Rock, Pop rock, Pop, Jazz, Electronic, Downtempo.

what would be reason to lose data like that?

Thanks!

2

Where are you getting these tags?
Is the below checkbox set?
image

Did you also get genre information from plugins previously and have you disabled these?

3

Hey @dns_server.

I was getting tags from the database. I don’t have old screenshot but they match what we see on the website.

4

I’ve gotten the impression that if I down-vote a folksonomy tag that someone else has added, it could disappear (if it only had one vote previously). For obvious reasons I haven’t tested this much.

I couldn’t say if that’s what’s happening here.

5

It seems like the tags are gone completely and not just voted down. I’m guessing that this would happen if 1) the tags only had a single “(up)vote” for them and 2) the editor who added the tag removed the tag (or deleted themselves/got deleted, in which case I believe all tags, ratings, etc. associated with said editor also gets removed).

2 Likes
6

I see. Aren’t the changes/additions that an editor makes preserved if they leave?
Or it’s just the ratings and tags added by that editor?

I continue to see significant drop.

I am looking at release_group_tag and release_tag tables.
Do we have backup or history of these tables somewhere?

Thanks!!

7

Ratings and tags are tied to user/editor accounts since it’s inevitably subjective (and thus personal) data. If the subject/person doesn’t want to be associated with MB anymore, any subjective data of theirs should also be removed (see e.g., the GDPR etc.).

You can look in old database dumps. I don’t remember exactly where they are (and I’m just about to board a plane, so can’t look myself), but try looking around our FTP server?

1 Like