$ git clone -n https://gitee.com/wency_cn/pyflakes.git /var/lib/mock/dist-an23-build-492699-74562/root/chroot_tmpdir/scmroot/pyflakes
Cloning into '/var/lib/mock/dist-an23-build-492699-74562/root/chroot_tmpdir/scmroot/pyflakes'...
$ git fetch origin a881e5818d899767b266f6bcc93263e38c17ed3b:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/pyflakes
 * [new ref]         a881e5818d899767b266f6bcc93263e38c17ed3b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a881e58 Update code from upstream