$ git clone -n https://gitee.com/wenjie2025/python-tornado.git /var/lib/mock/dist-an23-build-508881-75015/root/chroot_tmpdir/scmroot/python-tornado
Cloning into '/var/lib/mock/dist-an23-build-508881-75015/root/chroot_tmpdir/scmroot/python-tornado'...
$ git fetch origin 897cfc9116d2275ce04efd8f7b889e98bd5e0921:KOJI_FETCH_HEAD
From https://gitee.com/wenjie2025/python-tornado
 * [new ref]         897cfc9116d2275ce04efd8f7b889e98bd5e0921 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 897cfc9 Update code from upstream