e.g. I searched for "josuke ohata" - http://test.musicbrainz.org/search?query=josuke+ohata&type=artist and it goes straight to http://test.musicbrainz.org/artist/53ced650-5582-42a9-8c60-197fea7fd6ca (yuichi ohata). Given that it's only a partial match, I don't think that should happen. It's also really annoying when it does happen, because it makes it harder to tweak your search or add the artist you were actually searching for.

That example will probably stop working soon since I need to add that artist, so here's a made up one: http://test.musicbrainz.org/search?query=michishige+asdfgh&type=artist