$ git clone -n https://gitee.com/opencloudos-stream/vcs-diff-lint.git /var/lib/mock/dist-oc9-epol-build-99846-60519/root/chroot_tmpdir/scmroot/vcs-diff-lint
Cloning into '/var/lib/mock/dist-oc9-epol-build-99846-60519/root/chroot_tmpdir/scmroot/vcs-diff-lint'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/vcs-diff-lint
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60a3741 update