My signs in my Mob arena are Glitching

Put the summary of the bug you're having here

What I expected to happen was...:
The sign should say

If competing
<--------------

What actually happened was...:
The sign said
If competing
"/u003c----------

Steps to Reproduce:
1. Load 1.7.4

2. ...Create a sign that says something with hyphens

3. ...Reload in 14w28b