$ git clone -n https://gitee.com/opencloudos-stream/libyaml.git /var/lib/mock/dist-ocs23-build-41107-2059/root/chroot_tmpdir/scmroot/libyaml
Cloning into '/var/lib/mock/dist-ocs23-build-41107-2059/root/chroot_tmpdir/scmroot/libyaml'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libyaml
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a5b5906 update