$ git clone -n https://gitee.com/wenjie2025/python-tornado_1769509639.git /var/lib/mock/dist-an23-build-509277-75015/root/chroot_tmpdir/scmroot/python-tornado_1769509639
Cloning into '/var/lib/mock/dist-an23-build-509277-75015/root/chroot_tmpdir/scmroot/python-tornado_1769509639'...
$ git fetch origin 8866eff0a503a1f786e76c73d4bc4dc92268dc3c:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/python-tornado_1769509639
 * [new ref]         8866eff0a503a1f786e76c73d4bc4dc92268dc3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8866eff Update code from upstream