"git gc" doesn't seem to remove loose objects any more

I couldn't see a test for this, but perhaps I'm just missing it?

    brs% git count-objects
    161 objects, 1552 kilobytes
    brs% git gc
    Counting objects: 80621, done.
    Compressing objects: 100% (22372/22372), done.
    Writing objects: 100% (80621/80621), done.
    Total 80621 (delta 57160), reused 80305 (delta 56884)
    brs% git count-objects
    207 objects, 2048 kilobytes

And I see lots of directories under .git/objects which confirms things.

I don't think I've changed any relevant configuration.

This is with 8befc50c49e8a271fd3cd7fb34258fe88d1dfcad (also whatever version I used before, erm, probably de0db422782ddaf7754ac5b03fdc6dc5de1a9ae4), and possibly earlier versions---I've just started noticing now that the number of loose objects has started causing git gui to complain.

(Hmm, I note that git gui reports a larger number of loose objects than git count-objects. Ah, OK, it really is just an approximation, so no surprise.)