The Bug:

Z-fighting can sometimes be seen when your arms interest your torso when crawling or swimming.

Steps to Reproduce:

1. Build the setup as shown in the attachment below. setup.png
2. Begin crawling under the line of blocks and hit F5 once.
3. Move around until your arms are spread out.
4. Look closely at where your arms interest your torso.
5. Take note as to whether or not z-fighting can sometimes be seen when your arms interest your torso when crawling or swimming.

Observed Behavior:

Z-fighting is present.

Expected Behavior:

No z-fighting would occur.