Can't send hostname with special chars

There's a known bug where if the hostname command is sent and it's value contains special characters the application will crash. Meanwhile, the hostname command value will be converted to ASCII before be sent to the server so:

★ [ESP/EU] | BLACKBØX | FY-AIM | CUSTOM MAPS

will be shown as

??? [ESP/EU] | BLACKB??X | FY-AIM | CUSTOM MAPS

Any help is appreciated!