https://bugzilla.redhat.com/show_bug.cgi?id=1367115
--- Comment #4 from Zbigniew Jędrzejewski-Szmek zbyszek@in.waw.pl --- The SRPM doesn't need to be rebuilt: the result is (except in some special cases) the same, no matter what the build host.
The binary RPMs should be built on rawhide (in mock, see https://fedoraproject.org/wiki/How_to_create_an_RPM_package#Mock_and_Koji).