$ git clone -n https://src.fedoraproject.org/rpms/liboil.git /var/lib/mock/f41-build-832206-14881/root/chroot_tmpdir/scmroot/liboil
Cloning into '/var/lib/mock/f41-build-832206-14881/root/chroot_tmpdir/scmroot/liboil'...
$ git fetch origin 5cbce4086a2cf575b609b120f3a01e9607a23686:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/liboil
 * [new ref]         5cbce4086a2cf575b609b120f3a01e9607a23686 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5cbce40 Eliminate use of obsolete %patchN syntax (#2283636)