$ git clone -n https://gitee.com/wenyuzifang/sscg.git /var/lib/mock/dist-an23-build-465441-73955/root/chroot_tmpdir/scmroot/sscg
Cloning into '/var/lib/mock/dist-an23-build-465441-73955/root/chroot_tmpdir/scmroot/sscg'...
$ git fetch origin bff2f23ddd0ebd1d2eb8f9f5cc72e6b72cecf7d2:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/sscg
 * [new ref]         bff2f23ddd0ebd1d2eb8f9f5cc72e6b72cecf7d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bff2f23 Update code from upstream