Steps to reproduce:

1. Create new project
2. Add Code Coverage package
3. Open project in explorer/finder and create new folder next to assets folder
4. Back in editor, open the Code Coverage window and set results location to that folder
5. In explorer/finder, delete the folder
6. Return to the Code Coverage window

Actual result: Results Location path is reset do default
Expected result: Results Location path still points to the folder which no longer exists

Reproduced with: 2019.4.26f1, 2021.2.0a16
Package version: 1.0.0