Environment reflections are not updated per camera

In a multi camera setup, setting RenderSetting.customReflectionTexture per camera does not work.

Steps to repro:

1. Open attached repro project
2. Enter playmode
3. Observe that the center portion of the sphere

Expected: Since the reflection swapper is setting the skybox and the reflection texture, it would be expected to see the night sky in the central portion of the sphere.

Actual: The day sky is visible.

Note: Switching to regular forward and disabling one of the reflection probes can give an idea of the expected result as the environment reflection texture is then passed as a local one (remember to enter playmode). See attached image.