$ git clone -n https://src.fedoraproject.org/rpms/orc.git /var/lib/mock/f40-build-803359-144247/root/chroot_tmpdir/scmroot/orc
Cloning into '/var/lib/mock/f40-build-803359-144247/root/chroot_tmpdir/scmroot/orc'...
$ git fetch origin 79506a58ba6fe6d28d66f34c4a857b06e827a9f7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/orc
 * [new ref]         79506a58ba6fe6d28d66f34c4a857b06e827a9f7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 79506a5 Move orc-test to main package