$ git clone -n https://gitee.com/wency_cn/python-gmpy2.git /var/lib/mock/dist-an23-build-491424-74530/root/chroot_tmpdir/scmroot/python-gmpy2
Cloning into '/var/lib/mock/dist-an23-build-491424-74530/root/chroot_tmpdir/scmroot/python-gmpy2'...
$ git fetch origin 13f8860a64631407d2d1aacbd4d7d106982c059a:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-gmpy2
 * [new ref]         13f8860a64631407d2d1aacbd4d7d106982c059a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13f8860 Update code from upstream