humhub/humhub — pull request #233 by kimat (2014-10-02 14:37:56+00:00)
Title: fix  undefined property $_sequence

cf. http://imgur.com/qip4nQT

was required when running :
- PHP 5.5.9-1ubuntu4.4
- on ubuntu LTS 14.04

similar issue : https://bitbucket.org/zurmo/zurmo/issue/196/swiftmailer-problems-under-php-55