Folder as Workspace - add root rename detection

Description of the Issue

Looks like content of root folder in FAW panel is sync with real root's content in disk, so if we change files/subfolder (add/del/change name) in disk it will be noticed in FAW panel. But this not happend to root's folder. I don't know if it's a limitation or not, but for example after renaming root, synchronization still works.

STR:

1. Open Notepad++
2. Open FAW
3. Add some folder to FAW (as root)
4. Change root's content through windows exploerer. << you will notice the changes immediately in FAW
5. Change root's name through windows exploerer. << FAW still display old name
6. Change once again root's content through windows exploerer. << you will notice the changes immediately in FAW
7. Close and open Notepad++ again, root dissapear in FAW (because path in config.xml point to old name).

Even if we change root's name sync still works. Is there any possibility for NPP to detect the root rename as well and update the view in FAW and path in config.xml? Or the current behavior intentional?

Debug Information

Notepad++ v7.9 (32-bit)
Build time : Sep 22 2020 - 03:24:22
Path : D:_test\NPPClean\notepad++.exe
Admin mode : ON
Local Conf mode : ON
OS Name : Windows 7 Ultimate (64-bit)
OS Build : 7601.0
Current ANSI codepage : 1250
Plugins : none

Start by tracing Folder as Workspace synchronization and the handling of the root path stored in config.xml. Reproduce the Windows Explorer root-rename steps from the issue and inspect how subsequent filesystem changes are detected. Done means the FAW view shows the renamed root and config.xml no longer points to the old name, while synchronization still works.