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.
Linux kernel x86 boot executable bzImage, version 3.1.5-1.fc16.x86_64 (mockbuild@x86-05.phx2.fedoraproject.org) #1 SMP Fri Dec 9 18:11:10 UTC 2011, RO-rootFS, swap_dev 0X4, Normal VGA