$ git clone -n https://gitee.com/wency_cn/pyflakes.git /var/lib/mock/dist-an23-build-491143-74530/root/chroot_tmpdir/scmroot/pyflakes
Cloning into '/var/lib/mock/dist-an23-build-491143-74530/root/chroot_tmpdir/scmroot/pyflakes'...
$ git fetch origin 77df0dfdafda47e1d0a823e86b95b9fabb880cc3:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/pyflakes
 * [new ref]         77df0dfdafda47e1d0a823e86b95b9fabb880cc3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 77df0df Update code from upstream