Removed faces in Per-face UV mode not restored in Box UV mode

[Cubouse]

What are you trying to do, and what do you expect to happen?

Restore all the faces of a cube that had removed faces in Per-face UV mode, by turning it into using Box UV mode.

What happens instead?

The removed faces are still transparent in the viewport.

bb_bug_BoxUV_not_reset.mp4

It's just a visual issue as far as I can tell, the json of the geo file looks the same as a copy of the model without the issue. Reopening the model makes it looks right once again.

Changing the cube's UV mode, or the project's default UV mode doesn't change anything, I had to save and reopen the model.

This issue reminds me of #1817, in case they have anything to do with each other.

Model format in which the issue occurs

Bedrock entity

Blockbench variant

Program

Blockbench version

4.9.4

Operating System

Windows 10

Installed Blockbench plugins

N/A