How to reproduce:
1. Open the attached project
2. Open the "SampleScene" scene
3. Connect iOS device to the computer
4. Open Unity Remote on the device
5. Set Unity remote device at Edit > Project Settings > Editor
6. Enter Play Mode
7. Rotate the phone around (Find a cycle where the barrel turns around 180 degrees at some point)
8. In Editor, close the Game view tab.
9. Rotate the phone around the same way (Notice the barrel doesn't turn around 180 degrees anymore)

Actual result: The gyroscope behaviour differs when Game view is opened (gif attached).
Expected result: The gyroscope behaviour should stay the same.

Reproducible with: 2017.4.36f1, 2018.4.15f1, 2019.2.17f1, 2019.3.0f4, 2020.1.0a18.

Devices reproducible with:
- iPhone 11 (iOS 13.0)

Devices not reproducible with:
- VLNQA00015, Samsung Galaxy Note8 (SM-N950W), Android 8.0.0, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
- iPhone 8 Plus (iOS 12.2)