How to reproduce:

1. Open the attached project and the "profiler test" scene in it.
2. Open the Profiler window in the Editor and add GPU profiling.
3. Play the scene and notice since the camera is set to render in deferred and all objects in the scene are opaque, RenderDeferred.ForwardObjectsToDepth takes longer than it should.

Expected behavior: RenderDeferred.ForwardObjectsToDepth takes 0.0 ms while profiling GPU with terrain game object in deferred rendering.
Actual behavior: While rendering terrain game object in deferred, RenderDeferred.ForwardObjectsToDepth takes longer than it should.

Reproducible: 5.4.0b25, 5.4.0f2, 5.5.0a4.
Not reproducible: 5.3.6f1, 5.2.4f1.