The Bug:

Previously you could hold down both F3 + F4 and if you held onto both of them it would cycle every gamemode until you stopped holding F4. Now you have to tap F4 once every time you want to select a different one.

Reproduction Steps:

1) Open a new world with cheats enabled

2) Hold down both F3+F4

3) Watch as it only goes one forward, instead of cycling until you stop holding F4 

What happened:

Held down F3+F4 and only one gamemode goes forward.

What I expected to happen:

I would hold down F3+F4 and the gamemodes would cycle until I stopped holding F4.