Transparent object with negative scale doesn't work with RenderTexture. Screen becomes black when in Play mode.
Problem appears in PostEffectTest.cs script.

To reproduce:

1. Open project;
2. Enter play mode;
Screen is black;
3. Exit play mode.
4. Change "traCube" game object z scale from -1 to 1;
5. Enter play mode;
Game view appears correctly.

Reproduces with: 5.3.0f4; 5.4.0f3; 5.4.2f2l; 5.4.3f1; 5.5.0f3; 5.5.0p1; 5.6.0a6; 5.6.0b1;

Project with this bug is attached to this letter;