Angry wolf texture looks almost identical to the normal wolf texture

The bug

The angry wolf texture used to look different compared to the normal wolf texture. However as of 1.14, the angry wolf texture, in the default textures, has become almost identical to the normal wolf texture.

To reproduce:

• Summon a wolf and an angry wolf with the following commands:

/summon minecraft:wolf ~ ~ ~ {NoAI:1b,AngerTime:10000} 

 /summon minecraft:wolf ~ ~ ~ {NoAI:1b} 

→  The texture of both the neutral and hostile wolves look almost identical.