$ git clone -n https://gitee.com/opencloudos-stream/xz.git /var/lib/mock/dist-ocs23-build-21756-1041/root/chroot_tmpdir/scmroot/xz
Cloning into '/var/lib/mock/dist-ocs23-build-21756-1041/root/chroot_tmpdir/scmroot/xz'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/xz
 * [new ref]                    -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e677a30 !1 update to 5.4.3-1 Merge pull request !1 from abushwang/master