After changing skybox to void, skybox reverts on exiting theatre mode.

[philip-lamb]

Configuration

Firefox Reality version: 8
Firefox Reality build ID: from master 34c12f5

Hardware: All supported

Steps to Reproduce

1. Select a skybox other than void.
2. Switch skybox to void.
3. Enter theatre mode and then choose an immersive projection
4. Exit immersive theatre mode.

Current Behavior

Previous non-void skybox is visible.

Expected Behavior

"void" remains selected, i.e. no skybox is visible.

Possible Solution

Currently, in BrowserWorld, if changing to "void" and a skybox has previously been loaded, the previous skybox is just hidden, rather than removed from the scene graph, making other uses of show/hide skybox produce undesired behaviour. Better to remove and delete the skybox. Fixed by #2606.

[Softvision-GeluHaiduc]

I have verified that this issue is no longer reproducible with the latest Firefox Reality version 8-40101959 (3c2a71e) installed on the Oculus Go, Quest, HTC Vive Focus and Focus Plus headsets.
Now, the skybox does not revert on exiting theatre mode after a void environment is selected.