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.
cd6f9cf
Check if __isa_bits is defined so we don't fail when building the SRPM I tested this with a local mockbuild, but koji has a separate stage for building the RPM where __isa_bits is not defined.