$ git clone -n https://src.fedoraproject.org/rpms/ocaml-csv.git /var/lib/mock/f40-build-2220645-52668/root/chroot_tmpdir/scmroot/ocaml-csv
Cloning into '/var/lib/mock/f40-build-2220645-52668/root/chroot_tmpdir/scmroot/ocaml-csv'...
$ git fetch origin fd62c8943cb91816c635b0ad88cbdb86e03cda47:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-csv
 * [new ref]         fd62c8943cb91816c635b0ad88cbdb86e03cda47 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd62c89 Bump release and rebuild