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.
cbae200
Guilio points out that: AFAIK RHEL7 and Fedora >=16 switched from /var/lock to /var/lock/lockdev https://bugzilla.redhat.com/show_bug.cgi?id=1291869