$ git clone -n https://gitee.com/src-opencloudos-rpms/lz4.git /var/lib/mock/dist-oc9-build-234669-81995/root/chroot_tmpdir/scmroot/lz4
Cloning into '/var/lib/mock/dist-oc9-build-234669-81995/root/chroot_tmpdir/scmroot/lz4'...
$ git fetch origin a6ce26deba09d365d59d482f085ad039dc65fc9d:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/lz4
 * [new ref]         a6ce26deba09d365d59d482f085ad039dc65fc9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a6ce26d import lz4-1.9.4-6.tl4