<wbr> in math

[catamphetamine]

I figured that 4chan places <wbr> ("line break") tags when something not having spaces is longer than 35 characters.
In this thread: http://boards.4channel.org/sci/thread/10473981#q10473981
It has inserted <wbr> in an equation:

[math]f(x)=\\frac{x^3-x}{(x^2+1)^2}[<wbr>/math]

I suppose this is a bug.
I'm filtering out all <wbr>s in my code anyway though so this issue doesn't affect me.
If you don't think it's a bug then feel free to close this issue.

[catamphetamine]

Actually, this is a bug because the <wbr> broke the equation rendering: