Problem with the new pre-release

Hello, there seems to be an issue in the Minecraft Client.

I cannot connect to my favorite servers!

I did some further digging, and I think I have located the problem.

My developer buddy has found the source of the issue.

https://hasteb.in/uzahadogex.tex.

He says that some bad developer put in that code and you can remove it to fix the issue.

Is this true?

Thank you for your consideration,
Mathias A.