$ git clone -n https://gitee.com/opencloudos-stream/libxml2.git /var/lib/mock/dist-ocs23-base-build-321238-33876/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/dist-ocs23-base-build-321238-33876/root/chroot_tmpdir/scmroot/libxml2'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libxml2
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ab6bbc5 !14 - [Type] security Merge pull request !14 from jiaxinyyang/master