$ git clone -n https://gitee.com/ocs-bot/sos.git /var/lib/mock/dist-ocs23-build-109758-6810/root/chroot_tmpdir/scmroot/sos
Cloning into '/var/lib/mock/dist-ocs23-build-109758-6810/root/chroot_tmpdir/scmroot/sos'...
$ git fetch origin HEAD:KOJI_FETCH_HEAD
From https://gitee.com/ocs-bot/sos
 * [new ref]         HEAD       -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef56eed Upgrade to version 4.6.0