replicating (manage)sieve - no symlink on replica?

[Philipp]

2.2.13/0.4.2, both from source-tarball, no fancy options.

tcp-replication between two nodes and following plugin parameters (same 
on both sides, except the ip-addr)
plugin {
  sieve_before = /home/ssfn/etc/dovecot/sieve.default
  sieve_global_dir = /home/ssfn/etc/dovecot
  sieve = ~/.dovecot.sieve
  sieve_dir = ~/.sieve
  sieve_extensions = +vnd.dovecot.duplicate
  sieve_duplicate_period = 6h
  mail_replica = tcp:10.66.50.15:9993
}

mail_location = sdbox:/home/ssfn/var/mail/boxes/%n
mail_home = /home/ssfn/var/mail/boxes/%n

Testbed: user getting first email delivered, the subdir %n/.sieve/tmp 
is automatically created as expected.
User logs into managesieve on node1 and uploads a script.
The %n/.sieve/managesieve.sieve and the symlink .dovecot.sieve -> 
.sieve/managesieve.sieve
is created as expected.

One node2 (via replica) happens:
automatically create %n/.sieve/tmp
automatically create/sync %n/.sieve/managesieve.sieve
just NOT the symlink .dovecot.sieve -> .sieve/managesieve.sieve

Logfiles for lmtp,doveadm,dsync-local dont indicate an error why it 
could not create the link or such,
to me it looks like it wouldnt even try.

mail-syncing works flawlessly (for delivery, just read about the 
expunge .. hum.)

I tried to force a full-resync via doveadm replicator afterwards, to no 
change on the matter.

Any input?

Log from node2 after the moment managesieve saves everything correctly 
on node1:
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: auth input: 
user=ssfntest
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: auth input: 
ssfntest
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: Added userdb 
setting: plugin/=yes
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: Effective 
uid=993, gid=993, home=/home/ssfn/var/mail/boxes/ssfntest
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: Namespace inbox: 
type=private, prefix=, sep=/, inbox=yes, hidden=no, list=yes, 
subscriptions=yes 
location=sdbox:/home/ssfn/var/mail/boxes/ssfntest:INDEX=/home/ssfn/var/mail/index/ssfntest:ALT=/home/ssfn/var/mail/alternate/ssfntest
Sep 11 15:20:12 doveadm(10.66.30.15,ssfntest): Debug: fs: 
root=/home/ssfn/var/mail/boxes/ssfntest, 
index=/home/ssfn/var/mail/index/ssfntest, indexpvt=, control=, inbox=, 
alt=/home/ssfn/var/mail/alternate/ssfntest
Sep 11 15:20:12 dsync-server(ssfntest): Debug: Namespace : Using 
permissions from /home/ssfn/var/mail/boxes/ssfntest: mode=0700 
gid=default
Sep 11 15:20:12 dsync-server(ssfntest): Debug: doveadm-sieve: Iterating 
Sieve mailbox attributes
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve: Pigeonhole 
version 0.4.2 initializing
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve-storage: using 
active sieve script path: 
/home/ssfn/var/mail/boxes/ssfntest/.dovecot.sieve
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve-storage: using 
sieve script storage directory: 
/home/ssfn/var/mail/boxes/ssfntest/.sieve
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve-storage: 
permission lookup failed from /home/ssfn/var/mail/boxes/ssfntest/.sieve
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve-storage: created 
storage directory /home/ssfn/var/mail/boxes/ssfntest/.sieve/tmp
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve-storage: relative 
path to sieve storage in active link: .sieve/
Sep 11 15:20:12 dsync-server(ssfntest): Debug: sieve: script file 
/home/ssfn/var/mail/boxes/ssfntest/.sieve/managesieve.sieve not found
Sep 11 15:20:12 dsync-server(ssfntest): Debug: doveadm-sieve: Value 
missing for key 
`vendor/vendor.dovecot/pvt/server/sieve/files/managesieve' (last change: 
1970-01-01 01:00:00)
Sep 11 15:20:13 dsync-server(ssfntest): Debug: doveadm-sieve: Assigned 
value for key `vendor/vendor.dovecot/pvt/server/sieve/files/managesieve'

FS tree node2 after that:
[..boxes]# find ssfntest -ls|grep -v mailb
  24442    4 drwx------   4 ssfnimp  dlagimp      4096 Sep 11 15:20 
ssfntest
  21048    4 drwx------   3 ssfnimp  dlagimp      4096 Sep 11 15:20 
ssfntest/.sieve
  21052    4 drwx------   2 ssfnimp  dlagimp      4096 Sep 11 15:20 
ssfntest/.sieve/tmp
  21056    4 -rw-------   1 ssfnimp  dlagimp        69 Sep 11 15:20 
ssfntest/.sieve/managesieve.sieve
  21016    0 lrwxrwxrwx   1 ssfnimp  dlagimp        38 Sep 11 15:05 
ssfntest/dbox-alt-root -> /home/dlag/var/mail/alternate/ssfntest

FS tree node1 "before":
[..boxes]# find ssfntest -ls|grep -v mailb
1835841    4 drwx------   4 ssfnimp  ssfnimp      4096 Sep 11 15:20 
ssfntest
1835861    0 lrwxrwxrwx   1 ssfnimp  ssfnimp        24 Sep 11 15:05 
ssfntest/.dovecot.sieve -> .sieve/managesieve.sieve
1835854    4 -rw-------   1 ssfnimp  ssfnimp         8 Sep 11 15:05 
ssfntest/dovecot-uidvalidity
1835856    4 drwx------   3 ssfnimp  ssfnimp      4096 Sep 11 15:20 
ssfntest/.sieve
1835857    4 drwx------   2 ssfnimp  ssfnimp      4096 Sep 11 15:20 
ssfntest/.sieve/tmp
1835860    4 -rw-------   1 ssfnimp  ssfnimp        69 Sep 11 15:20 
ssfntest/.sieve/managesieve.sieve
1835846    0 lrwxrwxrwx   1 ssfnimp  ssfnimp        38 Sep 11 15:05 
ssfntest/dbox-alt-root -> /home/ssfn/var/mail/alternate/ssfntest