As detailed in https://github.com/xbmc/xbmc/pull/13051, Kodi v18 changes the way album genres are handled, as the genre (by which i mean `genreId`) ceases to be available at the album level, being only available at the songs level.
This impacts Kore because `GetAlbums` and `GetAlbumDetails` won't return the `genreId` tag, from which the local AlbumGenres table was populated.
This PR changes the source of the local AlbumGenres table to be the `genreId` returned at the song level (by `GetSongs`), to make it somewhat more consistent with the way Kodi will handle things from now on.
* Song lists for artist, album, and overall now shows the artist name for each individual song
* Added display artist column to songs table. This required a DB upgrade and users should
do a refresh for music items to be able to see the display artist in the song lists.
This applies the fix for issue #219 Incomplete libraries for movies and
TV shows.
For music items this was already fixed in PR #236
See commit 7330f85241
Using Kodi's JSON RPC, Kodi may return less items than requested, even
if there are more items available. The old method of determining if
more items are available by checking if the amount of items returned
equals the amount requested does not work in these cases. Therefore,
we now use the returned List.LimitsReturned to determine if there are
more items available. If List.LimitsReturned.end equals
List.LimitesReturned.total we assume we retrieved all items.
Synced Synapse
Martijn Brekhof