$ git clone -n https://gitee.com/src-opencloudos-rpms/flac.git /var/lib/mock/dist-oc9-build-63222-16463/root/chroot_tmpdir/scmroot/flac
Cloning into '/var/lib/mock/dist-oc9-build-63222-16463/root/chroot_tmpdir/scmroot/flac'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/flac
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bb10bed import flac-1.4.3-2.tl4