Steps to reproduce:

1. Setup VCS perforce
2. Open attached projecti in workspace and push it to repo
3. In top menu, click Test > Provider Delete menu item. This will call Provider.Delete on /Assets/Scenes folder
4. Notice that folder in project view is marked for delete but files inside are not. At this point Scenes folder shouldn't even be in project tab and its status should only be visible when observer using Outgoing tab in version control window
5. Click on some other program to make editor out of focus
6. Bring editor back in focus and notice that now project tab no longer shows Scenes folder and when observed through Outgoing tab, files that were inside are also marked for delete

Reproduced with: 2017.4.1f1, 2018.1.0f2, 2018.2.0b2