$ git clone -n https://src.fedoraproject.org/rpms/libXp.git /var/lib/mock/f41-build-705876-13001/root/chroot_tmpdir/scmroot/libXp
Cloning into '/var/lib/mock/f41-build-705876-13001/root/chroot_tmpdir/scmroot/libXp'...
$ git fetch origin 9d6a6545a0bee7aed94092b067cd6bc294fb761c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libXp
 * [new ref]         9d6a6545a0bee7aed94092b067cd6bc294fb761c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9d6a654 Eliminate use of obsolete %patchN syntax (#2283636)