$ git clone -n https://gitee.com/wenyuzifang/mtr.git /var/lib/mock/dist-an23-build-485441-74348/root/chroot_tmpdir/scmroot/mtr
Cloning into '/var/lib/mock/dist-an23-build-485441-74348/root/chroot_tmpdir/scmroot/mtr'...
$ git fetch origin da168ea3c0857ffc54c5b40adbb2e12f80c2bf11:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/mtr
 * [new ref]         da168ea3c0857ffc54c5b40adbb2e12f80c2bf11 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da168ea Update code from upstream