$ git clone -n https://gitee.com/src-opencloudos-rpms/filesystem.git /var/lib/mock/dist-oc9-build-41158-14591/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/dist-oc9-build-41158-14591/root/chroot_tmpdir/scmroot/filesystem'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/filesystem
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8c9ec8 import filesystem-3.16-5.tl4