BuddyPress.org

Lemme go look at this. I was just in that area about a week ago.

(later) Works for me. Lots of u-umlaut chars going to and from bp group forums, to bbpress and back again. Showing up as proper u-umlaut chars. Andy just installed some fixes lately in this area. Try upgrading to the latest bp trunk.

The fixes include an upgrade to the buddypress-enable.php plugin that runs in bbpress. Don’t forget that.