Inconsistent rendering between left and right eye when r.SeparateTranslucencyScreenPercentage is less than 100

Rendering appears to be inconsistent between the left and right eye of the oculus when setting r.SeparateTranslucencyScreenPercentage to a number below 100 (99 in this example)

1. Download the attached project
2. Open the project
3. Play in VR
4. Press the '~' key to bring up the console
5. Type in "r.SeparateTranslucencyScreenPercentage 99" (without quotes)
6. Notice that the block shown in the right eye appears to extend
   `
   Expected: Each eye would render essentially the same thing
   Result: The right eye renders the block in this example differently in the right eye

4.15: SeparateTranslucency broken in VR