[Feature]: Empty folders are not persisted

[ryanfkeepers]

What happened?

Backups drop persistence of empty folders in all applications (exchange, onedrive). Even they're empty, all folders should be included in the backup.

Corso Version?

all

Where are you running Corso?

any

Relevant log output

n/a

[ashmrtn]

are you checking backup details for the folders or the actual folder layout in kopia? I suspect that they're in kopia, just not in backup details because right now we only generate folders in details when we add an item to details