$ git clone -n https://gitee.com/src-opencloudos-rpms/rubygem-kramdown.git /var/lib/mock/dist-oc9-build-64265-16463/root/chroot_tmpdir/scmroot/rubygem-kramdown
Cloning into '/var/lib/mock/dist-oc9-build-64265-16463/root/chroot_tmpdir/scmroot/rubygem-kramdown'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/rubygem-kramdown
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b731c59 import rubygem-kramdown-2.3.2-4.tl4