$ git clone -n https://gitee.com/src-opencloudos-rpms/ldns.git /var/lib/mock/dist-oc9-build-48841-14595/root/chroot_tmpdir/scmroot/ldns
Cloning into '/var/lib/mock/dist-oc9-build-48841-14595/root/chroot_tmpdir/scmroot/ldns'...
$ git fetch origin oc9:KOJI_FETCH_HEAD
From https://gitee.com/src-opencloudos-rpms/ldns
 * [new branch]      oc9        -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 222f6b5 import ldns-1.8.3-4.tl4