Endless infinity falling bug

Sorry but i cant think of a place to post this.

In front of icc there tend to be rogues who prey on players afk in mid air by dismounting and one shot them with killing spree.

Some rogue tried this on me when i was mounted outside icc. I just happened to react in time and cast iceblock. So the killing spree didnt cause damage. HOWEVER, the moment i hit the ground, i just teleported back to mid air again and went through the falling process all over again, and again, and again.... until my iceblock expires and i die from falling.

Is this a known bug? Does this happen to everyone else?

edit : grammar mistakes :(

It happen something similiar to me, left wintergrasp with teleport then game itself started to moving me back to wintergrasp, to place from where I teleported, so i were flying whole wintergrasp zone from icecrown about 7 times then died in air ;D

Had something similar when using Nitro Boost. Instead of dashing forwards, I somehow get teleported up, and I repeat the process of falling until I use Blink to break the loop (and actually fall). Happened once in Wintergrasp, once in Dalaran.