The command fails with:
Resync of 0 folders of type 'FOLDERID' on device '123' of user 'ol': ZPushAdmin::ResyncFolder(): no folders requested for user 'ol' on device '123'. Aborting.
This happens because backend2folderidCache in ASDevice is not available and can't be built.
Reported at: https://servicedesk.kopano.com/browse/KS-38228