$ git clone -n https://gitee.com/opencloudos-stream/libunwind.git /var/lib/mock/dist-rebuild-after-rpm-check-build-175118-10981/root/chroot_tmpdir/scmroot/libunwind
Cloning into '/var/lib/mock/dist-rebuild-after-rpm-check-build-175118-10981/root/chroot_tmpdir/scmroot/libunwind'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/libunwind
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d6871a !1 添加loongarch64支持 Merge pull request !1 from streamlet_hy/master