$ git clone -n https://gitee.com/wency_cn/python-build.git /var/lib/mock/dist-an23-build-491162-74530/root/chroot_tmpdir/scmroot/python-build
Cloning into '/var/lib/mock/dist-an23-build-491162-74530/root/chroot_tmpdir/scmroot/python-build'...
$ git fetch origin eb917b6e34844e3a77255b8c3b938659b4475428:KOJI_FETCH_HEAD
From https://gitee.com/wency_cn/python-build
 * [new ref]         eb917b6e34844e3a77255b8c3b938659b4475428 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb917b6 Update code from upstream