$ git clone -n https://src.fedoraproject.org/rpms/ocaml-sedlex.git /var/lib/mock/f40-build-784306-133348/root/chroot_tmpdir/scmroot/ocaml-sedlex
Cloning into '/var/lib/mock/f40-build-784306-133348/root/chroot_tmpdir/scmroot/ocaml-sedlex'...
$ git fetch origin 33863244d2a6cc04d827fec551a79fcc4fb1e199:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-sedlex
 * [new ref]         33863244d2a6cc04d827fec551a79fcc4fb1e199 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3386324 update Release