Why does an artist have two sections labeled “Album + Compilation”? See, for example, Tammy Wynette on the first Overview page and on the last. Tammy Wynette - MusicBrainz
And several artists have addressed this inconsistency.
Hello, @Alfg . Interesting question?
Are you seeing the two sections in the releases listing on the Artist page on the MusicBrainz website?
When I go to the Tammy Wynette example to which you linked, I see a release listing broken up into three pages because it is so long (go, Tammy!). The “Album + Compilation” section happens to get broken between page 1 and page 2. Page 1 has the Album + Compilation listing through 1988, page 2 continues the listing from 1988 on. The website repeats the “Album + Compilation” heading at the start of page 2.
Is that what you are seeing? Or are you pointing out something different?
This is because they are bootlegs, and there is a toggle to show or hide bootlegs (coupled with the paging algorithm). Bitmap has commented on the functionality here Seems to be difference in where bootleg live albums are listed depending on artist? - #3 by Bitmap
Correction- they are promos, but same rule applies (they are not official)
However, the distinction between official and bootleg is not consistently applied. See June Carter Cash. In the album + compilation section, official and bootleg are mixed together.
Offical: Ring of Fire: The Best of June Carter Cash - Release “Ring of Fire: The Best of June Carter Cash” by June Carter Cash - MusicBrainz
Bootleg: The Chronogical Classics: June Carter 1949-1956 - https://musicbrainz.org/release/e68b86c6-2198-4fa2-a61c-21764785cfd4
Take a look to Wanda Jackson there are official and bootleg mixed together in the first album + compilation section.
Ps. The Chronogical Classics are all bootleg
This is due to the paging algorithm, the logic for how RGs are displayed on each page. To quote Bitmap “The type groupings like “Album + Live” don’t group all results together, just the results on that page.”
So in the case where all RGs fit on one page, yes, the non-official and official groups are in the same section (non-official sequentially listed after the official RGs). The case where RG type sections span multiple pages is where you’ll see them separately, usually official ones on earlier pages and non-official on later pages.