Discarding changes of open scene after it has been deleted throws InvalidOperationException in console

Steps to reproduce:
1. Open New Project
2. Save current scene
3. Delete the saved scene
4. Select Hierarchy window > Scene
5. Click on Burger Button
6. Click on "Discard changes"

Actual result:
InvalidOperationException is thrown when Discarding changes

Expected result:
No errors should be thrown when discarding changes from a deleted scene

Reproduced in:
2019.1.0a12, 2018.3.0f2, 2017.3.0a5

Working fine in:
2017.3.0a4, 2017.2.5f1

Environment:
Windows & Mac

Note:
See attached video and stacktrace