Unable to start using service command

When issuing a command "service ulogd2 restart", there is the following issue
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 * Restarting netfilter userspace log daemon ulogd
Tue Nov 12 16:19:03 2013 <5> ulogd.c:1078 removing stale pidfile for pid -1
ulogd: libnfnetlink.c:1566: nfnl_query: Assertion `h' failed.
Aborted
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but when using the command "service ulogd restart", it works like a charm (see below)
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Restarting netfilter userspace log daemon: ulogd.
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Version of ulogd reports:
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 ulogd --version
ulogd Version 2.0.2
(C) 2000-2006 Harald Welte <email address hidden>
(C) 2008-2012 Pablo Neira Ayuso <email address hidden>
(C) 2008-2012 Eric Leblond <email address hidden>
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Release was updated from 13.04 using "do-release-upgrade".

There are two scripts in /etc/init.d : one for ulogd and one for ulogd2. They don't have the same content but both are using binary "/usr/sbin/ulogd".

What we expect is:
* that command "service ulogd2 restart" to be working
* migrating/upgrading from ulogd v1 to ulogd v2 using the standart ubuntu process to be working
* to not duplicate 'init.d' script and having only a 'right' working one (one to be a symlink to other could be 'ok').
* It seems that starting from 13.10 ulogd is replaced by ulogd2 (good we were waiting for years) but, please be more explicit about it and remove package ulogd (or declare it as a "mirror" of ulogd2)

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apt-cache policy ulogd2
ulogd2:
  Installé : 2.0.2-3
  Candidat : 2.0.2-3
 Table de version :
 *** 2.0.2-3 0
        500 http://ftp.free.fr/mirrors/ftp.ubuntu.com/ubuntu/ saucy/universe amd64 Packages
        100 /var/lib/dpkg/status
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lsb_release -rd
Description: Ubuntu 13.10
Release: 13.10
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Best Regards.