$ git clone -n https://gitee.com/opencloudos-stream/slick-greeter.git /var/lib/mock/dist-oc9-epol-build-99633-60483/root/chroot_tmpdir/scmroot/slick-greeter
Cloning into '/var/lib/mock/dist-oc9-epol-build-99633-60483/root/chroot_tmpdir/scmroot/slick-greeter'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/slick-greeter
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 50d6b4c package init