$ git clone -n https://gitee.com/src-opencloudos-rpms/sos.git /var/lib/mock/dist-oc9-build-251272-84089/root/chroot_tmpdir/scmroot/sos
Cloning into '/var/lib/mock/dist-oc9-build-251272-84089/root/chroot_tmpdir/scmroot/sos'...
$ git fetch origin 974b371ee49bc0a410e9a7cc2dfb217b44fec8a1:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/sos
 * [new ref]         974b371ee49bc0a410e9a7cc2dfb217b44fec8a1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 974b371 import sos-4.6.0-5.tl4.ap.1