$ git clone -n https://gitee.com/src-opencloudos-rpms/unbound.git /var/lib/mock/dist-oc9-build-121765-71766/root/chroot_tmpdir/scmroot/unbound
Cloning into '/var/lib/mock/dist-oc9-build-121765-71766/root/chroot_tmpdir/scmroot/unbound'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/unbound
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c608912 import unbound-1.17.1-9.tl4