I wasn't able to report this bug sooner because I simply forgot to take screenshots when it occured in the test. I took the liberty of making a few screenshots on another server because I could not find another way to clearly report this.
As a Warrior I charged near a hill just north of Iceblood Graveyard and east of Iceblood Tower and fell through the world. I charged from the north, or Alliance, side of the cliff (picture 1) up to a player standing on top of the cliff (picture 2).
A sideview of the hill is given in picture 3.
1) http://i.imgur.com/UroexyF.jpg
2) http://i.imgur.com/VIsxpLK.jpg
3) http://i.imgur.com/RbvUKHY.jpg
