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.
libxfce4ui-4_7_1-2_fc13:HEAD:libxfce4ui-4.7.1-2.fc13.src.rpm:1263430047