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.
8726052
platform: use driver name to detect IBM z-System CTC devices (rh #1212118) https://bugzilla.redhat.com/show_bug.cgi?id=1212118