$ git clone -n https://gitee.com/wency_cn/python-gmpy2.git /var/lib/mock/dist-an23-build-492800-74562/root/chroot_tmpdir/scmroot/python-gmpy2
Cloning into '/var/lib/mock/dist-an23-build-492800-74562/root/chroot_tmpdir/scmroot/python-gmpy2'...
$ git fetch origin d240c82b7d8314419bd127c51cd4227ae836137e:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-gmpy2
 * [new ref]         d240c82b7d8314419bd127c51cd4227ae836137e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d240c82 Update code from upstream