$ git clone -n https://gitee.com/wenyuzifang/python-tornado.git /var/lib/mock/dist-an23-build-470141-74061/root/chroot_tmpdir/scmroot/python-tornado
Cloning into '/var/lib/mock/dist-an23-build-470141-74061/root/chroot_tmpdir/scmroot/python-tornado'...
$ git fetch origin 87a22e023c4e688c8b93e1ad805060fb17f1fa69:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/python-tornado
 * [new ref]         87a22e023c4e688c8b93e1ad805060fb17f1fa69 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 87a22e0 Update code from upstream