$ git clone -n https://gitee.com/opencloudos-stream/sac.git /var/lib/mock/dist-ocs23-base-build-343870-37657/root/chroot_tmpdir/scmroot/sac
Cloning into '/var/lib/mock/dist-ocs23-base-build-343870-37657/root/chroot_tmpdir/scmroot/sac'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/sac
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b329760 !1 fixed building error Merge pull request !1 from jeremiazhao/master