Item Model Override > Select Component CustomData not functioning AT ALL

When setting up an item model override (<pack_name>/assets/minecraft/items/ender_eye.json) I noticed that the custom_data doesn’t attempt to read at all. When I change the item model to read the custom_model_data, that works fine.

Reproduce the issue:

/give @p ender_eye[custom_data:{cmd:1}]

Expected Result:

an ender eye with the given gun model (again, tested with custom_model_data tags, this works, so it’s not where the model is placed)

Actual Result:

An ender eye with:

{components:{"minecraft:custom_data":{cmd:1}}, count:1, id:"minecraft:ender_eye"}

Files attached:

Current Resource pack I’m working with (cob_zombies)

Screenshot of the output

Incorrect Links to other issues:

MC-279557: Cant check individual values (not at all what I’m saying. I’m saying that it cant check ANY values within custom_data. This is also a ticket for the wrong version)

MC-301718: Cant use custom_data (this ticket is just wrong. The formatting for the item doesn’t work regardless. This is also a ticket for the wrong version)

Previous Ticket Open:

MC-304242: No proper resolution was given. The issue was not addressed at ALL with the currently given game version. There was also no valid tracked ticket in the attached tickets (all of them were resolved without proper resolutions given).

Please give a proper resolution of either what I’m doing wrong, or that the ticket is being fixed.