The bug

In the End and the Nether the compass needle is supposed to spin randomly. In 1.8 it spun all the way around, but since then it only spins in the lower half of the compass and very rarely some pixels above.

How to reproduce

1. Open Minecraft 1.8 and enter the Nether with a compass in your hotbar
   The needle spins all the way around
2. Open a newer version of Minecraft and enter the Nether with a compass in your hotbar
   The needle spins only in the lower half

Fix is attached (fixes the wobble function by properly keeping the angle values in range)