Steps to repro:
1. Open a new project
2. Open Window -> Analysis -> Profiler
3. Enter Play Mode
4. Observe the Profiler

Expected results: Camera.Render gets called once per frame.
Actual results: Camera.Render gets called twice per frame.

Reproduced in: 2019.3.0a2, 2019.3.0a7
Not reproduced in: 2019.1.0a1 and earlier streams

Note: Also PlayerLoop gets called 3 times, first one being the physics loop, but two others are going through identical rendering loop.

Reproduced in MacOS 10.14.4
Not reproduced in MacOS 10.12.6, 10.13.6