[BUG] z-fighting rendering issue affecting blocks of the type `dawnoftimebuilder:variant_wall`

[t-lecoublet]

Environment

Minecraft version: 1.20.1
Mod loader: Forge
Mod version: 1.5.43

Description

There appears to be a z-fighting rendering issue affecting blocks of the type
dawnoftimebuilder:variant_wall (example: dawnoftimebuilder:spruce_wall).

When placed in certain configurations (e.g. adjacent to another wall / connected segments / state tall), faces appear to render on the same plane, causing flickering textures and visible face conflicts.

Steps to reproduce

1. Launch Minecraft 1.20.1 with Forge and Dawn of Time Builder
2. Place a dawnoftimebuilder:spruce_wall block
3. Place additional plain blocks next to it (make them connect, ofc)
4. Observe the wall face below : textures flicker when moving the camera

Expected behavior

variant_wall blocks should render cleanly with no overlapping faces, flickering, or texture conflicts when connecting to adjacent segments.

Actual behavior

variant_wall blocks (e.g. spruce_wall) show z-fighting on certain faces when placed/connected, resulting in texture flickering and visual artifacts.

Technical notes / hypothesis

This looks like two faces are being rendered in the same location for some connection states of variant_wall, which causes z-fighting.

A screenshot illustrating the issue will be attached to this issue.