On several occasions I have tried the new lockpick, for example I wanted to eat or bandage in a room on an upper floor in Cherno. I locked the door and began eating. I hear a zombie shout and aggro on me.
Sure enough he came into the building and went up the stairs (navmesh ftw), unfortunately, the state of the door was not recognized. He passed right through it and attacked me.
Tried it with some other doors, with two other it was the same, at the third I ran into another player and died to his bullets :D