$ git clone -n https://src.fedoraproject.org/rpms/go-rpm-macros.git /var/lib/mock/f40-build-788416-135153/root/chroot_tmpdir/scmroot/go-rpm-macros
Cloning into '/var/lib/mock/f40-build-788416-135153/root/chroot_tmpdir/scmroot/go-rpm-macros'...
$ git fetch origin 71e5cefe6d923a863947e1a0aa966aae7af9fdfd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/go-rpm-macros
 * [new ref]         71e5cefe6d923a863947e1a0aa966aae7af9fdfd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71e5cef tests: Use older version of grafana srpm with %gotest