[IRCServices] NickServ enforcer bug when unlinking nicknames

[Andrew Church]

>	1) Register a nickname and enable automatic kill protection and then 
>link another nickname to your name.
>	2) Have another user use the nickname you just linked and wait for 
>NickServ to kill the user.
>	3) Unlink the other nickname from your main nickname and watch as the 
>NickServ enforcer bot doesn't ever release the nickname.  If you attempt 
>to use NickServ release you will be told the nickname isn't being held.

     Fixed, thanks for the report.  For the meantime, just /kill any
enforcers you find sitting around too long.

  --Andrew Church
    achurch at achurch.org
    http://achurch.org/