To reproduce:
1. Open attached project;
3. Make sure VR is enabled and Cardboard is set as VR SDK;
4. Make sure Graphics API is set to Metal;
2. Build the app for iOS platform.

Expected result: Unity splash screen, game view are rendered normally.
Actual result: The view is inverted.

Reproduced with: 2019.1.0a4, 2019.1.0a14, 2019.2.0a1.
Not reproduced with 2018.3.3f1, 2019.1.0a3.

Devices under testing:
Reproduced with:
VLNQA00210, iPad Pro, SoC: A9x, OS: 10.2.1
000314, iPad Pro, SoC: A12x, OS: 12.1
VLNQA00201, iPad Mini 4, SoC: A8, OS: 11.4
VLNQA00157, iPhone X, SoC: A11, OS: 12.0.1
VLNQA00160, iPhone 6s, SoC: A9, OS: 11.2.1
VLNQA00204, iPhone 5C, SoC: A6, OS: 9.3.2

Additional testing:
- Not reproducible with LWRP
- Not reproducible with OpenGLES
- Reproducible with both Multi Pass and Single Pass Stereo Rendering modes