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.
tracker-0_6_93-1_fc11:HEAD:tracker-0.6.93-1.fc11.src.rpm:1239415821 tracker-0_6_94-1_fc11:HEAD:tracker-0.6.94-1.fc11.src.rpm:1241204096