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.
d7b4f78
Use conditions definition for optional plugins as described at https://github.com/rpm-software-management/rpm/blob/34c2ba3c/macros.in#L100-L141