If you disconnect while in combat, your character remains in the world due to combat but you cannot login to your character because it's already connected.
I crashed after using a new move in combat with a bat, was unable to login while my armor and then character was slowly taken down, when I finally got back in I had lost most of my HHP and all my armor.
Basically allow players to retake control of "connected" characters if the connection to that character drops.