$ git clone -n https://src.fedoraproject.org/rpms/dbench.git /var/lib/mock/f41-build-1034607-18640/root/chroot_tmpdir/scmroot/dbench
Cloning into '/var/lib/mock/f41-build-1034607-18640/root/chroot_tmpdir/scmroot/dbench'...
$ git fetch origin c9e4282ebab30124757797d2bbf49490af1a4742:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dbench
 * [new ref]         c9e4282ebab30124757797d2bbf49490af1a4742 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9e4282 Eliminate use of obsolete %patchN syntax (#2283636)