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.
6c43c19
tag and build also drop pre-2.6.36 history, since it's more than 8 months old and was no longer relevant. (the only still-relevant bits are config setting justification, and that can easily be found by git blame.)