Dovecot path separator clarification

[Davide Marchi]

Hi Friends,
On Debian Jessie and Dovecot 1:2.2.x using the default separator "/" 
(simply leave commented 10-mail.conf -> "#separator =")

I've create for a vuser (from client) a subfolder Scuola/prova

on server side, Dovecot create:

../Maildir/.Scuola.prova

Here my question: why not

../Maildir/Scuola/prova ?



Where I'm wrong?

Many thanks!

Davide