$ git clone -n https://src.fedoraproject.org/rpms/linuxptp.git /var/lib/mock/f41-build-851447-165959/root/chroot_tmpdir/scmroot/linuxptp
Cloning into '/var/lib/mock/f41-build-851447-165959/root/chroot_tmpdir/scmroot/linuxptp'...
$ git fetch origin 9cf05793faee177a1f2f77ecf9bca1d2f3709e01:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/linuxptp
 * [new ref]         9cf05793faee177a1f2f77ecf9bca1d2f3709e01 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cf0579 4.4-1