$ git clone -n https://gitee.com/src-opencloudos-rpms/chrony.git /var/lib/mock/dist-oc9-build-40806-14591/root/chroot_tmpdir/scmroot/chrony
Cloning into '/var/lib/mock/dist-oc9-build-40806-14591/root/chroot_tmpdir/scmroot/chrony'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/chrony
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0558bf import chrony-4.3-1.ocs23