Fade local light shadow with r.Shadow.DoesFadeUseResolutionScale not working

Steps to Reproduce

  • Get CL 38507345 (ola.olsson) that exposes new CVar r.Shadow.DoesFadeUseResolutionScale.
  • Create an new map with floor, a spotlight, and a cube
  • Set spotlight to various Shadow Resolution Scale values
  • Observe that shadows do indeed cut off past a certain distance/screen coverage but never fade