The entry’s Wikipedia link is English. (error 1, there doesn’t need to be any article linked)
The entry’s Wikidata link has no WP articles. (error 2, as there is a different WD item that does point to an article)
Because there is no article on WD, the WP article gets displayed (which is normal). That WP article is a disambiguation page (error 3).
That enWP page does have a WD item which does have a noWP article (also a disambiguation page).
not that I go around looking for this issue, but this is the first I have seen a WP article being auto-redirected to a WD and then back to WP.
seems like the fix would be to replace the current wikidata link with Q1131308 , because that is the WD for the page you posted.
For me, in GB, the Wikidata page is the single with no links to any languages. The Wikipedia link goes to a GB disambiguation page. So I can’t work out why MB is showing me a Japanese disambig page?
This does seem to be an example of the song\single mess that is happening at Wikidata. On the Wikidata page they have removed all the links to the Wikipedia SONG(work) page as this is a Wikidata SINGLE page. They don’t like it when a Wikipedia page shows both Song and Single data on the same page.
That does not explain why the Wikipedia link is failing so badly for MB. I would have hoped it at least would load up English - instead we get a random language. Very odd.
Edit - for that MB Single page, the wikipedia link should go to https://en.wikipedia.org/wiki/Mamma_Mia_(ABBA_song) and not https://en.wikipedia.org/wiki/Mamma_Mia_(song) as it currently does (I have now added an edit to swap this - but that is only a UK solution. No Wikidata link available to point to multilingual Single pages)
(Edit Update: This has been approved so you’ll have to take my word for it that I was seeing Japanese as the approval has therefore masked the bug caused by the redirect)
If the Wikidata link went to https://www.wikidata.org/wiki/Q1131308 MB would again load all the languages. But as that is a SONG page the Wikidata editor would just return and delete the link from MB and restore it to https://www.wikidata.org/wiki/Q109427725 Wikidata needs to solve their puzzle with Wikipedia over this and find a solution. Song and Single need to point to the same combined Wikipedia pages.
For now the only real answer for MusicBrainz is adding all the different language Wikipedia pages separately! Maybe MB can come up with a hack to get round this. You can’t even do it with a look-up on Wikidata as there is no link between SONG and SINGLE pages. (which seems weird)
Fine on my end as well! I’m getting the respective English articles for both single and song. The Wikipedia article link overrides any Wikidata link, which I think is the intended behavior.
Just speculation, but I think MB might have some issues with Wikipedia language codes that don’t match the correct ISO codes? (like in the case of nb and no )
Then we just need to create a song Wikidata page. It’s super easy to do. Having all these Wikipedia links is just not what is wanted. That’s the whole point of Wikidata. Plus, this is a release group for the single. The “song” is different as it usually refers to the work. So, IMO, all of the recently added Wikipedia pages (once again, we don’t want Wikipedia links over WIkidata) need to be removed. Moebeus aren’t you the one who usually differentiates between song & single on these? I guess I don’t get what’s going on here, but seeing so many Wikipedia links on a release group is just crazy. One Wikidata link for the single. If there is something wrong with the Wikidata link, fix it there.
As for directly linking a ton of different language versions of Wikipedia articles? It doesn’t look like a sustainable approach to me. But if we’re in a phase where we’re trying to figure out how best to do this going forward, some experimentation is probably not a bad thing.
That’s my point. All the linked Wikpedia pages should be to the same type of article, correct? The single release group, should be to the single. If all of those added WIkipedia links are to articles about the single, than why not just add them to the Wikidata article about the single instead and then they will show there?