[Dovecot] imap-quota not working

[arvids]

Hello,

imap-quota plugin always returns empty quota:
	a1 GETQUOTA ""
	* QUOTA "" ()
	a1 OK Getquota completed.
	a2 GETQUOTAROOT INBOX
	* QUOTAROOT "INBOX"
	a2 OK Getquotaroot completed.

quota_rule and quota_rule2 for this user are defined in db as following:
	'*:storage=5000000'
	'*:messages=50000'
Quota for LDA is working OK.
I am using dovecot-1.1.3 with quotadict.

Here is my dovecot  -n output:
# 1.1.3: /usr/local/dovecot/etc/dovecot.conf
base_dir: /var/run/dovecot/
syslog_facility: local7
protocols: pop3 imap
ssl_cert_file: /etc/postfix/host-cert.pem
ssl_key_file: /etc/postfix/host-key.pem
disable_plaintext_auth: no
verbose_ssl: yes
login_dir: /var/run/dovecot/login
login_executable(default): /usr/local/dovecot/libexec/dovecot/imap-login
login_executable(imap): /usr/local/dovecot/libexec/dovecot/imap-login
login_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3-login
login_greeting: Server.
login_process_per_connection: no
login_processes_count: 5
login_max_processes_count: 32
verbose_proctitle: yes
first_valid_uid: 95
first_valid_gid: 95
mail_uid: 95
mail_gid: 95
mail_location: maildir:~/Maildir
fsync_disable: yes
mail_executable(default): /usr/local/dovecot/libexec/dovecot/imap
mail_executable(imap): /usr/local/dovecot/libexec/dovecot/imap
mail_executable(pop3): /usr/local/dovecot/libexec/dovecot/pop3
mail_plugins(default): quota imap_quota
mail_plugins(imap): quota imap_quota
mail_plugins(pop3): quota
mail_plugin_dir(default): /usr/local/dovecot/lib/dovecot/imap
mail_plugin_dir(imap): /usr/local/dovecot/lib/dovecot/imap
mail_plugin_dir(pop3): /usr/local/dovecot/lib/dovecot/pop3
imap_client_workarounds(default): delay-newmail
imap_client_workarounds(imap): delay-newmail
imap_client_workarounds(pop3):
pop3_enable_last(default): no
pop3_enable_last(imap): no
pop3_enable_last(pop3): yes
pop3_client_workarounds(default):
pop3_client_workarounds(imap):
pop3_client_workarounds(pop3): outlook-no-nuls oe-ns-eoh
namespace:
  type: private
  separator: .
  inbox: yes
  list: yes
  subscriptions: yes
auth default:
  mechanisms: plain login digest-md5 cram-md5 apop
  cache_size: 1024
  cache_ttl: 600
  cache_negative_ttl: 60
  user: doveauth
  verbose: yes
  passdb:
    driver: sql
    args: /usr/local/dovecot/etc/dovecot-sql.conf
  userdb:
    driver: prefetch
  userdb:
    driver: sql
    args: /usr/local/dovecot/etc/dovecot-sql.conf
  socket:
    type: listen
    client:
      path: /var/spool/postfix/private/auth
      mode: 432
      user: postfix
      group: postfix
    master:
      path: /var/run/dovecot/auth-master
      mode: 384
      user: vmail
      group: vmail
plugin:
  quota: dict:::proxy:/var/run/dovecot/dict-server:quotadict
dict:
  quotadict: mysql:/usr/local/dovecot/etc/dovecot-sql-dict-quota.conf

Regards, Arvids