Steps to reproduce:
1. Open user attached project
2. Open crash_res.unity scene
3. Build & Run the game
4. Spam "n" key until:
- get a black (or white / flat color) screen
- get a gradient screen
- get a crash (application terminated)

0 libsystem_kernel.dylib 0xa165a496 __pthread_kill + 10
1 libsystem_c.dylib 0xa15baa34 abort + 141
2 libsystem_c.dylib 0xa15852aa basename_r + 0
3 SkyLight 0x9e7631fa backing_map + 543
4 SkyLight 0x9e762f42 lock_window_backing + 800
5 SkyLight 0x9e72721b SLSDeviceLock + 51

Expected result: changing resolution should not cause a crash/gradient/black screen

Reproduced in: 2017.3.0a1, 2017.2.0f3, 2017.1.1p4, 5.6.4f1, 5.5.5p1
Not reproduced in: 2018.1.0a1, 2017.3.0b1, 2017.3.0a2