VoxelGI does not preserve CameraAttributes across scene reloads

[Calinou]

• Related to LightmapGI doesn't take CameraAttributes into account when baking indirect light in lightmaps (and only partially for direct light) #74139.

Godot version

4.0.rc6

System information

Fedora 37, GeForce RTX 4090 (NVIDIA 525.85.05)

Issue description

VoxelGI does not preserve CameraAttributes across scene reloads. This leads to baked GI not containing light information (and only displaying ambient occlusion instead).

After baking VoxelGI, before reloading the scene

I increase exposure sensitivity to 3200 ISO, but this occurs with the default CameraAttributesPhysical settings too.

After baking VoxelGI, saving then reloading the scene

This is the result when running the project from the editor too.

VoxelGI disabled (for comparison)

Steps to reproduce

• Follow Physical light and camera units documentation to enable physical light and camera units in a project.
• Set up VoxelGI then bake it.

Minimal reproduction project

physical_light_camera_units.zip