[Sam Bauers]

@ meitershaker

There was a bug in the display name implementation. First, update to the very latest trunk. There is a chance that you might have a user meta item for some users called ‘display_name’. This will be stomping on the real setting in the user table. Use this SQL query to clear out the bad data.

DELETE FROM bb_usermeta WHERE meta_key = 'display_name';

Once you’ve updated to the latest trunk and done that, you should be able to use any UTF-8 character in display names.