$ git clone -n https://gitee.com/src-anolis-os/ocaml-base.git /var/lib/mock/dist-an23-loongarch-build-323656-68511/root/chroot_tmpdir/scmroot/ocaml-base
Cloning into '/var/lib/mock/dist-an23-loongarch-build-323656-68511/root/chroot_tmpdir/scmroot/ocaml-base'...
$ git fetch origin a23:KOJI_FETCH_HEAD
From https://gitee.com/src-anolis-os/ocaml-base
 * [new branch]      a23        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ce6b8a7 Init from upstream