TranslucentVolumeAmbient is darkened in InjectTranslucencyLightingVolume pass when using VSMs with r.Shadow.Virtual.ForceOnlyVirtualShadowMaps is Off

CSM targets are still created and affect the InjectTranslucencyLightingVolume pass when moving in a project that only uses VSM causing over brightening of fog planes and other translucent meshes.

r.Shadow.Virtual.ForceOnlyVirtualShadowMaps 1 fixes the issue, which is the default in 5.4

1. Create a project that uses VSM
2. Turn off r.Shadow.Virtual.ForceOnlyVirtualShadowMaps
3. Add translucent fog planes to a scene
4. Move the camera around the scene, going through the fog planes

Expected
The lighting changes gradually while moving around and through the fog planes

Actual
The fog planes brightness is twice as bright when moving through and around them and pop back to normal after a second or two when not moving.