$ git clone -n https://gitee.com/src-opencloudos-rpms/libfastjson.git /var/lib/mock/dist-oc8-build-253460-84294/root/chroot_tmpdir/scmroot/libfastjson
Cloning into '/var/lib/mock/dist-oc8-build-253460-84294/root/chroot_tmpdir/scmroot/libfastjson'...
$ git fetch origin 0f7deef066abc89c83b54285d2eb653094728992:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/libfastjson
 * [new ref]         0f7deef066abc89c83b54285d2eb653094728992 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f7deef import libfastjson-0.99.9-2.tl3