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.
rubygem-rack-0_4_0-2_fc10:F-9:rubygem-rack-0.4.0-2.fc10.src.rpm:1228231134 rubygem-rack-1_0_0-1_fc11:F-9:rubygem-rack-1.0.0-1.fc11.src.rpm:1240775986