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.
grass-6_3_0-5_fc9:F-9:grass-6.3.0-5.fc9.src.rpm:1215259887 grass-6_3_0-6_fc9:F-9:grass-6.3.0-6.fc9.src.rpm:1219599696