$ git clone -n https://gitee.com/src-opencloudos-rpms/lz4.git /var/lib/mock/dist-oc8-build-176099-79981/root/chroot_tmpdir/scmroot/lz4
Cloning into '/var/lib/mock/dist-oc8-build-176099-79981/root/chroot_tmpdir/scmroot/lz4'...
$ git fetch origin f67d9b12b411a357d1aeaba8b22e189a8eeb8231:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/lz4
 * [new ref]         f67d9b12b411a357d1aeaba8b22e189a8eeb8231 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f67d9b1 import lz4-1.8.3-5.tl3