[Dovecot] Lost %d variable

I'm trying to set up sieve with dovecot, and for some reason, sieve is not getting the %d variable that is part of the path to where its script should be.

Here's the version:

ops:/var/log/mail# dovecot --version

1.2.13

And, here's the configuration (I've left it all for reference, but moved the lda & plugins portions together and marked them out):

ops:/var/log/mail# dovecot -n

# 1.2.13: /etc/dovecot/dovecot.conf

# OS: Linux 2.6.18-3-686 i686 Debian 4.0 ext3

log_path: /var/log/mail/dovecot.log

info_log_path: /var/log/mail/dovecot.info

log_timestamp: %Y-%m-%d %H:%M:%S

protocols: imap imaps pop3 pop3s

ssl_parameters_regenerate: 0

disable_plaintext_auth: no

verbose_ssl: yes

login_dir: /var/run/dovecot/login

login_executable(default): /usr/lib/dovecot/imap-login

login_executable(imap): /usr/lib/dovecot/imap-login

login_executable(pop3): /usr/lib/dovecot/pop3-login

mail_location: maildir:/var/mail/%d/%n:CONTROL=/var/mail/%d/%n:INDEX=/var/mail/%d/%n:INBOX= /var/mail/%d/%n

mbox_write_locks: fcntl dotlock

mail_executable(default): /usr/lib/dovecot/imap

mail_executable(imap): /usr/lib/dovecot/imap

mail_executable(pop3): /usr/lib/dovecot/pop3

mail_plugin_dir(default): /usr/lib/dovecot/modules/imap

mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap

mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3

----------- Start lda/sieve part --------------

lda:

log_path: /var/log/mail/deliver-errors.log

info_log_path: /var/log/mail/deliver.log

postmaster_address: aladdin@csunv.com

mail_plugin_dir: /usr/lib/dovecot/modules/lda

mail_plugins: sieve

plugin:

sieve: /var/mail/%d/%n/.sieve

----------- End lda/sieve part --------------

auth default:

verbose: yes

passdb:

driver: passwd-file

args: /etc/dovecot/passwd.dovecot

userdb:

driver: static

args: uid=vmail gid=vmail home=/var/mail/home/%u

userdb:

driver: passwd

plugin:

sieve: /var/mail/%d/%n/.sieve

And, here is the log output:

ops:/var/log/mail# cat deliver-errors.log

2010-09-11 18:23:46 deliver(aladdin): Error: sieve: failed to stat user's sieve script: stat(/var/mail//aladdin/.sieve) failed: Not a directory (using global script path in stead)

2010-09-11 18:23:46 deliver(aladdin): Error: stat(/var/mail//aladdin/tmp) failed: Not a directory

Obviously, the double slashes shouldn't be there; there should be the domain name: /var/mail/csunv.com/aladdin

The "regular" dovecot gets the path fine; that is also where it puts the mail, and I'm getting mail just fine.

TIA,

Allen