City guards now have the ability to move past locked city doors by
unlocking, opening, and locking them again. Note that this all happens
without any possibility of players moving through the locked door during
the time in which the guard is moving. This should address the majority
of bugs related to guard movement that have made some of their pathing
somewhat suspect recently.

Penned by my hand on the 10th of Slyphian, in the year 285 MA.