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.
d53d863642b34b446ee7600bdad000a1 firefox-41.0.1.source.tar.xz fa15d2ff501da895b87422805c8612b6 firefox-langpacks-41.0.1-20150930.tar.xz