$ git clone -n https://src.fedoraproject.org/rpms/coccinelle.git /var/lib/mock/f45-build-4311-331/root/chroot_tmpdir/scmroot/coccinelle
Cloning into '/var/lib/mock/f45-build-4311-331/root/chroot_tmpdir/scmroot/coccinelle'...
$ git fetch origin 6ed1862d94893b872f5ed720092f865ff6ed8221:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coccinelle
 * [new ref]         6ed1862d94893b872f5ed720092f865ff6ed8221 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6ed1862 OCaml 5.5.1 rebuild