This command will change the gender for the attached character's account. If it
was male, it will become female, if it was female, it will become male. The
change will be written to the character server, but there is no way to send this
information to the client, so the player will continue to see their character as
the gender it previously was. What the other players will see before the
relogin is not clear.

If the character currently connected when this command was invoked was a
Dancer/Gypsy or Bard/Clown, they will become a Swordman upon 'changesex'.
Whatever happens to their skills is not clear. Whatever happens if another
character on the same account was a gender-specific class is not clear either,
but it's likely that the client will have serious issues with that, since no
other characters on the same account will get altered.

There's good reasons to be very careful when using this command.