These two fields allow to specify a different default assignee for ticket opened against this package in bugzilla. Note: The EPEL field is always displayed for packages in the 'rpms' namespace regardless of whether it is used in bugzilla or not.
80b3404
Initial package for Fedora Submitted on Mon Jun 02 2014: https://bugzilla.redhat.com/show_bug.cgi?id=1103897