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.
imvirt-0_9_0-0_2_pre1_el6:F-12:imvirt-0.9.0-0.2.pre1.el6.src.rpm:1269434654 imvirt-0_9_0-1_el6:EL-6:imvirt-0.9.0-1.el6.src.rpm:1277978317