$ git clone -n https://gitee.com/src-opencloudos-rpms/CharLS /var/lib/mock/dist-oc9-epol-build-52917-14768/root/chroot_tmpdir/scmroot/CharLS
Cloning into '/var/lib/mock/dist-oc9-epol-build-52917-14768/root/chroot_tmpdir/scmroot/CharLS'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/CharLS
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 872da11 import CharLS-2.0.0-2.tl4