dovecot - Mar 2018 - Dovecot replication does not replicate subscription in shared mailboxes

We use a pair of replicating Dovecot servers.

If a user subscribes to a folder, shared by an other user, in one
replica, that does not get replicated to the other node. Subscription of
regular folders below INBOX seem to replicate correctly.

Is that a general bug, a known problem or do we need to enable that somehow.

Here's our configuration for the concerned namespace:

namespace users {
? location = mdbox:%%h/mdbox:INDEXPVT=~/shared/%%u
? prefix = user/%%n/
? separator = /
? subscriptions = no
? type = shared
}

I attached the full doveconf -n.

Thanks for any points :)

Ralf

-- 
Ralf Becker
EGroupware GmbH [www.egroupware.org]
Handelsregister HRB Kaiserslautern 3587
Gesch?ftsf?hrer Birgit und Ralf Becker
Leibnizstr. 17, 67663 Kaiserslautern, Germany
Telefon +49 631 31657-0

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# 2.2.32 (dfbe293d4): /etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.20 (7cd71ba)
# OS: Linux 4.4.0-116-generic x86_64  
auth_cache_negative_ttl = 2 mins
auth_cache_size = 10 M
auth_cache_ttl = 5 mins
auth_master_user_separator = *
auth_mechanisms = plain login
auth_username_chars =
"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ01234567890.-_@#"
default_client_limit = 3500
default_process_limit = 512
disable_plaintext_auth = no
doveadm_password =  # hidden, use -P to show it
doveadm_port = 12345
first_valid_uid = 90
listen = *
log_path = /dev/stderr
mail_access_groups = dovecot
mail_gid = dovecot
mail_location = mdbox:~/mdbox
mail_log_prefix = "%s(%u %p): "
mail_max_userip_connections = 200
mail_plugins = acl quota notify replication mail_log
mail_uid = dovecot
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
vacation subaddress comparator-i;ascii-numeric relational regex imap4flags copy
include variables body enotify environment mailbox date ihave vnd.dovecot.debug
mbox_min_index_size = 1000 B
mdbox_rotate_size = 50 M
namespace inboxes {
  inbox = yes
  location = 
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox Templates {
    auto = subscribe
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix = INBOX/
  separator = /
  subscriptions = no
}
namespace subs {
  hidden = yes
  list = no
  location = 
  prefix = 
  separator = /
}
namespace users {
  location = mdbox:%%h/mdbox:INDEXPVT=~/shared/%%u
  prefix = user/%%n/
  separator = /
  subscriptions = no
  type = shared
}
passdb {
  args = /etc/dovecot/dovecot-dict-master-auth.conf
  driver = dict
  master = yes
}
passdb {
  args = /etc/dovecot/dovecot-dict-auth.conf
  driver = dict
}
plugin {
  acl = vfile
  acl_shared_dict = file:/var/dovecot/imap/%d/shared-mailboxes.db
  mail_log_events = delete undelete expunge copy mailbox_delete mailbox_rename
  mail_log_fields = uid box msgid size
  mail_replica = tcp:10.44.99.1
  quota = dict:User quota::ns=INBOX/:file:%h/dovecot-quota
  quota_rule = *:storage=100GB
  sieve = ~/sieve/dovecot.sieve
  sieve_after = /var/dovecot/sieve/after.d/
  sieve_before = /var/dovecot/sieve/before.d/
  sieve_dir = ~/sieve
  sieve_extensions = +editheader
  sieve_user_log = ~/.sieve.log
}
postmaster_address = admins at egroupware.org
protocols = imap pop3 lmtp sieve
quota_full_tempfail = yes
replication_dsync_parameters = -d -n INBOX -l 30 -U
service aggregator {
  fifo_listener replication-notify-fifo {
    user = dovecot
  }
  unix_listener replication-notify {
    user = dovecot
  }
}
service auth-worker {
  user = $default_internal_user
}
service auth {
  drop_priv_before_exec = no
  inet_listener {
    port = 113
  }
}
service doveadm {
  inet_listener {
    port = 12345
  }
  inet_listener {
    port = 26
  }
  vsz_limit = 512 M
}
service imap-login {
  inet_listener imap {
    port = 143
  }
  inet_listener imaps {
    port = 993
    ssl = yes
  }
  process_min_avail = 5
  service_count = 1
  vsz_limit = 64 M
}
service imap {
  executable = imap
  process_limit = 2048
  vsz_limit = 512 M
}
service lmtp {
  inet_listener lmtp {
    port = 24
  }
  unix_listener lmtp {
    mode = 0666
  }
  vsz_limit = 512 M
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  inet_listener sieve_deprecated {
    port = 2000
  }
}
service pop3-login {
  inet_listener pop3 {
    port = 110
  }
  inet_listener pop3s {
    port = 995
    ssl = yes
  }
}
service pop3 {
  executable = pop3
}
service postlogin {
  executable = script-login -d rawlog -b -t
}
service replicator {
  process_min_avail = 1
  unix_listener replicator-doveadm {
    group = dovecot
    mode = 0660
    user = dovecot
  }
}
ssl_cert = </etc/certs/mail.egroupware.org.pem
ssl_key =  # hidden, use -P to show it
userdb {
  driver = prefetch
}
userdb {
  args = /etc/dovecot/dovecot-dict-auth.conf
  driver = dict
}
userdb {
  args = /etc/dovecot/dovecot-sql.conf
  driver = sql
}
verbose_proctitle = yes
protocol lda {
  mail_plugins = acl quota notify replication mail_log acl sieve quota
}
protocol imap {
  mail_max_userip_connections = 200
  mail_plugins = acl quota notify replication mail_log acl imap_acl quota
imap_quota
}
protocol lmtp {
  mail_max_lock_timeout = 25 secs
  mail_plugins = acl quota notify replication mail_log acl sieve quota
}
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