$ git clone -n https://src.fedoraproject.org/rpms/clisp.git /var/lib/mock/f41-build-847110-163715/root/chroot_tmpdir/scmroot/clisp
Cloning into '/var/lib/mock/f41-build-847110-163715/root/chroot_tmpdir/scmroot/clisp'...
$ git fetch origin 8e77a6688a92ce02d2ff53072be633611a980d77:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/clisp
 * [new ref]         8e77a6688a92ce02d2ff53072be633611a980d77 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8e77a66 Update to latest git snapshot