[sieve][pigeonhole] Can't catch stdout for pipe script after upgrade Dovecot 2.2 -> 2.3

Hi.

I use custom script:

require [ "vnd.dovecot.pipe", "variables" ];

if address :is :all "from" "snip@snap" { pipe "sieve_to_owncloud"; }

sieve_to_owncloud:

DATE=date +%Y-%m-%d_%H-%M-%S PYTHONIOENCODING=utf8 python /opt/sieve-pipe/python-imap-to-owncloud.py
--owncloud-host https://<snip-snap>
--owncloud-user user
--owncloud-password secret
--owncloud-path /path/to/here &>/tmp/sieve_logger_py_${DATE}

On dovecot 2.2 after script execution I will get plaintext log files on /tmp. After upgrade - don't.

I also changed transport to lmtp when upgrade. Any ideas where is my stdout?

k