[Dovecot] Adding ", S=size" to new message files when using "dirsize"

[Rich, Whidbey Telecom]

When APPENDing new message files to an IMAP Maildir, Dovecot 1.0 rc27  
can be configured to add ",S=size" to the filename.  That allows it  
to be calculated with the "dirsize" quota plugin (and MTA's such as  
Exim).

However, Dovecot only seems to do that when the "maildir" quota  
plugin is specified (from "quota-maildir.c"):

                 /* For newly generated filenames add ,S=size. */
                 storage->save_size_in_filename = TRUE;

Shouldn't "save_size_in_filename" be included in "quota-dirsize.c",  
since "dirsize" is the one that actually needs "S="?

Maybe I'm missing something?  Here're some relevant parts of our test  
config:

--
mail_location = maildir:/var/mail/%u/Maildir:INDEX=MEMORY
maildir_copy_with_hardlinks = yes
maildir_copy_preserve_filename = yes

protocol imap {
   mail_executable = /usr/local/libexec/dovecot/rawlog /usr/local/ 
libexec/dovecot/imap
   mail_plugins = quota imap_quota
   imap_client_workarounds = delay-newmail outlook-idle
}

plugin {
   quota = dirsize:storage=10240
}

--
Thanks!

Rich
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