[Dovecot] Quota maildirsize and dbox

[luben karavelov]

Hello,

Is there any reason that maildirsize Quota store should not work in dbox 
folders or any other folder based mailbox stores?

I have patched a test version here and it seems to work (added "dbox" 
check in src/plugins/quota/quota-maildir.c line 785).

If there could be any complications or unexpected consequences of this 
setup?

Thanks in advance
luben