$ git clone -n https://gitee.com/src-opencloudos-rpms/python-tornado.git /var/lib/mock/dist-oc9-build-232234-81715/root/chroot_tmpdir/scmroot/python-tornado
Cloning into '/var/lib/mock/dist-oc9-build-232234-81715/root/chroot_tmpdir/scmroot/python-tornado'...
$ git fetch origin 8cc530e39ff38145c74c1a2d26aa741224e579b0:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/python-tornado
 * [new ref]         8cc530e39ff38145c74c1a2d26aa741224e579b0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8cc530e import python-tornado-6.3.3-8.tl4