The bug

If a bundle of one color is, through components, given the model of a bundle of another color, scrolling through it will revert the textures to the first colour.

How to reproduce

1. /give @s minecraft:green_bundle[minecraft:item_model=pink_bundle]

2. Place items inside
3. Scroll

Expected results

Since it looks pink when closed, it should also look pink when open.

Actual results

It magically becomes green when open.

How to fix

The thing the game does where the inventory model is overriden needs to become customizable in the item model file itself somehow. Doing this would fix this, MC-229142, MC-276654, MC-276728 and MC-276730. If no such overrides exist, default to the base model, respecting the gui_light setting.