How to reproduce:
1. Open the attached project
2. Open the "GameScene" scene
3. Disable the "GameSettings" game object
4. Enter Play mode
5. press F1 (enables "GameSettings" game object)
6. Repeat 4-5 if Unity doesn't crash instantly

Actual result: Unity crashes.

Reproducible with: 2017.1.2p3, 2017.2.0p1, 2017.3.0b1, 2017.3.0b9, 2018.1.0a5.
Regression introduced in: 2017.2.0p1, 2017.3.0b1.
Not reproducible with: 2017.3.0a7, 2017.2.0f3.

Notes:
If the Game Settings window opens but is empty, most likely after some attempts Unity is going to crash.
I was able to reproduce the crash once on 2017.1.2p3, but the crash is very rare.