Prevent visited harlot from being killed

At 12 players, there are two harlots, and they can visit each other.
This is intended to make both of them invincible, but the actual
behavior was that the one visiting the victim would die.

**Note:** lycanthrope currently does not have two harlots at 12 players or anywhere else, that refers to the changes in seerwolf, my bot. Still, I felt like this behavior should be fixed.