Multiple issues with horse textures

Affects 18w19b.

The neck of the horse model is defined wrong, it's using some of the neck texture and some of the body side for the neck, you can see this easily using my debug texture, this also effects the armor too.

Also the bridle is defined in the wrong location too, at the moment the texture comes from the chest section of the horse texture not the bridle at the top of the texture next to the saddle.

Affects Version included all snapshot versions from 18w19b to 1.13-pre1

Is this still an issue in 1.13-pre2?

Because the horses has a new texture in 1.14.
So this issue still occurred in the 18w43c version?