$ git clone -n https://gitee.com/wenyuzifang/python-lz4.git /var/lib/mock/dist-an23-build-486352-74383/root/chroot_tmpdir/scmroot/python-lz4
Cloning into '/var/lib/mock/dist-an23-build-486352-74383/root/chroot_tmpdir/scmroot/python-lz4'...
$ git fetch origin 015a706f1eab59a644e85a7b65faf792270dacd1:KOJI_FETCH_HEAD
From https://gitee.com/wenyuzifang/python-lz4
 * [new ref]         015a706f1eab59a644e85a7b65faf792270dacd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 015a706 Update code from upstream