[MC-115818] Keeps Crashing after press the costumize button for superflat

It will crash everytime i pressed it

1.Start minecraft
2.Create new world
3. Go to the advenced option
4. change to superflat and press the costumize button
5. Crashed

Linked issues

I got this chrash too.
In the crash.txt file there are theese lines:

Description: Rendering screen

java.lang.StackOverflowError: Rendering screen
at byo.a(SourceFile:306)

after this the last line is repeated over and over again