$ git clone -n https://gitee.com/opencloudos-stream/mopac.git /var/lib/mock/dist-oc9-epol-build-92995-59374/root/chroot_tmpdir/scmroot/mopac
Cloning into '/var/lib/mock/dist-oc9-epol-build-92995-59374/root/chroot_tmpdir/scmroot/mopac'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/mopac
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 54ea485 update