$ git clone -n https://gitee.com/opencloudos-stream/unbound.git /var/lib/mock/dist-ocs23-build-279555-26726/root/chroot_tmpdir/scmroot/unbound
Cloning into '/var/lib/mock/dist-ocs23-build-279555-26726/root/chroot_tmpdir/scmroot/unbound'...
$ git fetch origin master:KOJI_FETCH_HEAD
From https://gitee.com/opencloudos-stream/unbound
 * [new branch]      master     -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 12b1130 Rebuilt for loongarch release