Album Artist while browsing

[Mike48]

I'm using MinimServer (latest) with Bubble UPnP on an Android phone. When I browse, say with Genre > Composer and then display the artists, I noticed that only some of the results display the Album Artist tag. It seems that it's displayed only if an entire album fits the criteria; otherwise, it's not.

I don't know whether this is a bug or a feature, and I don't know whether it occurs because of MinimServer or BubbleUPnP.

I would rather the album artist always be shown, so that when I looked for, say, versions of the Schumann Piano Concerto, I could see the album artist regardless of what else is on the album.