Texture Bleeding when UV map shares a border

UV mapping graphical issue that results in texture bleeding between UV maps and layered textures when "zombie_villager_v2_masked" and "entity_alphatest" are used. I have created some assets including model, render controllers, textures, client entity.

 

Steps to reproduce:

1. Load up custom model with materials "zombie_villager_v2_masked" and "entity_alphatest"

Observation:

Texture bleeding, as shown below:

 

Expected result:

Model shows one flat colour all around the cube.

assets.zip