$ git clone -n https://gitee.com/wency_cn/python-tornado_1772111415.git /var/lib/mock/dist-an23-build-515508-75118/root/chroot_tmpdir/scmroot/python-tornado_1772111415
Cloning into '/var/lib/mock/dist-an23-build-515508-75118/root/chroot_tmpdir/scmroot/python-tornado_1772111415'...
$ git fetch origin 9cd14a32b8c41ec1ca501bcca121b1f48b659ffc:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-tornado_1772111415
 * [new ref]         9cd14a32b8c41ec1ca501bcca121b1f48b659ffc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9cd14a3 Update code from upstream