$ git clone -n https://src.fedoraproject.org/rpms/frr.git /var/lib/mock/f40-build-2430244-60608/root/chroot_tmpdir/scmroot/frr
Cloning into '/var/lib/mock/f40-build-2430244-60608/root/chroot_tmpdir/scmroot/frr'...
$ git fetch origin 7643df3757965af08ca0bb866d1b803cb49dfd7b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/frr
 * [new ref]         7643df3757965af08ca0bb866d1b803cb49dfd7b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7643df3 Rename all /var/run file context entries to /run