Character exploit crashes clients

Unicode exploit that crashes clients: §r§k§§retard
this is a major bug that is crashing everyone's clients.

How it works: §r: sets the text to regular §k: randomized text §§retard: when the word retard is type onto an item it is set to ***** allowing the §k to randomize the  causing an infinite text render loop. (causing client to crash)

See video this guy made:
https://www.youtube.com/watch?v=NI0eAbaMTQ0&t=29s