Can't put accents in the chat or signs in the iMac version of the game

If you're try to put any kind of accents in letters in letter in the chat or in a sign and you're using a macintosh, you can't.

For instance the way you type the circumflex accent in the Mac is option + i + — letter, the result is just the letter you type without any accents...

You can even copy and paste them in chat, but not in signs...