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.
3ff1288057848aed123c4df6a50fb96e firefox-langpacks-3.6.4-20100622.tar.bz2 c9a071b31bb90d05edfb93117d0a7537 firefox-3.6.6.source.tar.bz2