[MC1.12.2]How to replace forge bucket model?

[Blue_Beaker]

I tried to replace the forge bucket model with a resource pack, but at first I couldn't find any models in forge assets besides the bucket.json and the bucket_milk.json.

The bucket.json can be found here on the forge github and it only seems to be using only one texture. 

But in dynbucket.json blockstates file, there are 3 textures to be replaced.

The forge:forgebucket in the blockstates file towards nothing:Forge docs says that blockstates always use block models, I found no block models in forge assets.

So I simply made a file to replace it but all fluids turns white except potions, which keeps its own color.

Spoiler

Here's my model:

bucket.json in assets/forge/models/blocks/

dynbucket.json in assets/forge/blockstates/

What's wrong in these models? and how can I do to make the model work correctly?