Forest[] holder = r.holder;
Forest old = holder[pos];
if (results==null) return; // FIXME: this should not happen
for(Result res : results)
if (only == null || res == only) {
Forest[] holder = r.holder;
Forest old = holder[pos];
if (results==null) return; // FIXME: this should not happen
for(Result res : results)
if (only == null || res == only) {