$ git clone -n https://gitee.com/src-opencloudos-rpms/libart_lgpl.git /var/lib/mock/dist-oc9-epol-build-53532-14768/root/chroot_tmpdir/scmroot/libart_lgpl
Cloning into '/var/lib/mock/dist-oc9-epol-build-53532-14768/root/chroot_tmpdir/scmroot/libart_lgpl'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libart_lgpl
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 811dd53 import libart_lgpl-2.3.21-2.tl4