$ git clone -n https://gitee.com/src-opencloudos-rpms/filesystem.git /var/lib/mock/dist-oc9-build-100894-65202/root/chroot_tmpdir/scmroot/filesystem
Cloning into '/var/lib/mock/dist-oc9-build-100894-65202/root/chroot_tmpdir/scmroot/filesystem'...
$ git fetch origin c9d0cf4ac2b7139c299fdc97644f903594e2ab0f:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/filesystem
 * [new ref]         c9d0cf4ac2b7139c299fdc97644f903594e2ab0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c9d0cf4 import filesystem-3.16-9.tl4