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.
grub2-1_98-0_2_20080807svn_el5:HEAD:grub2-1.98-0.2.20080807svn.el5.src.rpm:1219824412