$ git clone -n https://src.fedoraproject.org/rpms/ocaml-dose3.git /var/lib/mock/f42-build-865927-173583/root/chroot_tmpdir/scmroot/ocaml-dose3
Cloning into '/var/lib/mock/f42-build-865927-173583/root/chroot_tmpdir/scmroot/ocaml-dose3'...
$ git fetch origin 6dfc3f661e8d7b3da5ee90c1ec85b381e84a0176:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ocaml-dose3
 * [new ref]         6dfc3f661e8d7b3da5ee90c1ec85b381e84a0176 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6dfc3f6 OCaml 5.3.0 rebuild for Fedora 42