Steps to reproduce:
1. Open user attached project
2. Open scene 'asdf'
3. Enter playmode

* Console spammed with two assert messages:
RendererUpdateManager only synchronizes renderers that are added to the scene, so AssertIsTransformInfoUpToDate can only be called on renderers that are added to the scene
In order to call GetTransformInfoExpectUpToDate, RendererUpdateManager.UpdateAll must be called first

4. Enable mesh renderer for the Sphere GO
* Assertions stop, sphere is renderer with red material
5. Disable mesh renderer
* Assertions spam again, the sphere is black

Regression introduced in: 5.6.0b8
Reproduced on: 5.6.0b8, 5.6.0f3, 5.6.1p2, 2017.1.0b8, 2017.2.0a2
Not reproduced on: 5.5.4f1, 5.6.0a1, 5.6.0b1, 5.6.0b7

Fixed in: 2017.2.0a4
Backported to: 5.6.2p1, 2017.1.0f1