Played on an experimental branch.
Tried to climb onto the roof of high-rise buildings in the Beresino and broke my leg.
First, you can not get out of the building which houses (tested only on high-rise buildings in the Beresino, where I miraculously fell off a ladder when climbing up on the roof)
Second, on the stairs between floors, a player with a broken leg can be sitting down, despite a broken leg.
And third: with a broken leg can not climb stairs.

http://www.youtube.com/watch?v=Pi5g4XtYhMc&feature=c4-overview&list=UUwiRIYaXkw4WBOxb61dZbNQ

http://www.youtube.com/watch?v=64MSdWNnfCI&feature=c4-overview&list=UUwiRIYaXkw4WBOxb61dZbNQ

http://www.youtube.com/watch?v=eCwRy7MvFbk&feature=c4-overview&list=UUwiRIYaXkw4WBOxb61dZbNQ