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.
libguestfs-1_0_21-2_fc11:EL-5:libguestfs-1.0.21-2.fc11.src.rpm:1241904551