F3 Facing value is not accurate

Windows_Minecraft - Release_853103
(RC 1.4)

Summary:
The facing values in the F3 menu are messed up. Based on initial testing, it seems to be cosmetic only, and doesn't affect selectors that use facing direction.

Impact:
You can't tell what angle you're facing using F3, which makes it incredibly difficult to create commands based on needing the knowledge of rotation.

Repro Steps:
1. Open world
2. Press F3
3. Look at the facing value while spinning around

Observed Results:
The facing value either sticks or changes randomly, and will not consistently achieve the same value at the same point every time you land on it

Expected Results:
The facing value should accurately show the angle you're facing

Screenshots/Videos attached: