$ git clone -n https://gitee.com/wency_cn/python-arrow.git /var/lib/mock/dist-an23-build-491157-74530/root/chroot_tmpdir/scmroot/python-arrow
Cloning into '/var/lib/mock/dist-an23-build-491157-74530/root/chroot_tmpdir/scmroot/python-arrow'...
$ git fetch origin 15ad363a63530aa44878ee0631f73d723df14827:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-arrow
 * [new ref]         15ad363a63530aa44878ee0631f73d723df14827 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 15ad363 Update code from upstream