According to http://wiki.musicbrainz.org/XML_Web_Service/Version_2
http://musicbrainz.org/ws/2/artist?work=41782c10-5849-4b3a-a58c-6cbd68963208 should work, but doesn't return anything.
I guess it should return artists related to the work.
http://musicbrainz.org/ws/2/artist/a7bf0470-fecd-48c5-af9d-9e4ffb068936?inc=works works fine and returns work 41782c10-5849-4b3a-a58c-6cbd68963208 (but is limited to 25 works)
while http://musicbrainz.org/ws/2/artist?work=41782c10-5849-4b3a-a58c-6cbd68963208 doesn't work (and should allow to get more than 25 works through offset parameters)
Agreed to fix within 3 months by http://scheduling.ocharles.org.uk and http://chatlogs.musicbrainz.org/musicbrainz-devel/2012/2012-03/2012-03-26.html#T19-36-54-3898
This is in review at http://codereview.musicbrainz.org/r/1951/ and available for testing on http://test.musicbrainz.org/
This is in beta testing with the origin/mbs-2903 branch.