For a scene with unsaved changed when the current Graphics API is modified, "Changing editor graphics API" window pops up. Editor restarts and Graphics API is switched even when this window is called. But on following same procedure with a scene with no changes, the Graphics is not switched as expected.

Steps to reproduce:
1) Create a new project
2) Create an empty GameObject (Or any changes in the scene)
3) File > Build Settings > Player > Other Settings
4) Change the active Graphics API
5) Close the "Changing editor graphics API" window

Actual result: Editor restarts and Graphics API changed

Expected result: Editor should not restart and Graphics API should not change. It should work similar to "Cancel changing API" button.

Reproducible in:
2020.2.0a9, 2020.2.0a1, 2020.1.0b7, 2020.1.0a26, 2019.3.4f1

Working Fine in:
2020.1.0a25, 2019.3.3f1

Environment:
Occurring only on Windows 10