Description of problem: The current version of ejabberd is 2.1.13. That version is unsupported as of 2013-10-9 according to: http://www.ejabberd.im/ejabberd-13.10 There have been a number of major stable releases since then, including the most recent: http://www.ejabberd.im/ejabberd-14.07 A supported ejabberd should be adopted.
This bug should be closed in Rawhide now and will be closed in Fedora 21.