GIProbe rendering displays the sky too bright in reflections unless Dynamic Range is decreased to 1

[Calinou]

Godot version

3.5.beta (5194c612a)

System information

Fedora 34, GeForce GTX 1080 (NVIDIA 470.74)

Issue description

GIProbe rendering displays the sky too bright in reflections unless Dynamic Range is decreased to 1. This happens regardless of whether Rendering > Quality > Voxel Cone Tracing > High Quality is enabled in the Project Settings. (It's enabled on the screenshots below for the purposes of demonstration.)

This bug does not affect VoxelGI in master.

Default dynamic range/energy settings

Dynamic Range 1

Dynamic Range 4, Energy 0.25 (`1.0 / Dynamic Range)

Steps to reproduce

• Add a WorldEnvironment node with the default procedural sky.
• Add some MeshInstances with Use In Baked Light enabled.
• Set a non-rough, fully metallic material on one of the MeshInstances.
• Add a GIProbe node and bake it.

Minimal reproduction project

test_gi_texture_3.x.zip

[atirut-w]

While toying around with a test scene I made for an issue, I came across a strikingly similar issue but it's not just the reflections, everything became too bright. Could my issue be related to this?

This is without any lights in the scene.

Repro project: repro.zip