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.
at-spi2-core-0_1_4-1_fc12:HEAD:at-spi2-core-0.1.4-1.fc12.src.rpm:1262628465