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.
htop-0_8-1:EL-4:htop-0.8-1.src.rpm:1218660903 htop-0_8_2-1:EL-4:htop-0.8.2-1.src.rpm:1244055159