foreach($clones as $tag){
            // this "mechanic" is just to correct problems with singular tags on the right boundry of non-singular tags: The will be sorted right after the non-singular but may are nested into. We have to correct this ...
            $nearest = $this->findHolderByOrder($processed, $tag);
            if($nearest == NULL){
                $nearest = $container->getNearestContainer($tag); // this is the "normal" way of nesting the sorted cloned tags
            }
            // Will log rendering problems
            if(self::VALIDATION_MODE && $nearest == null){
                error_log("\n============== HOLDER =============\n");
                error_log($holder->toJson());
                error_log("\n============== CONTAINER =============\n");
                error_log($container->toJson());
                error_log("\n============== TAG =============\n");
                error_log($tag->toJson());
                error_log("\n========================================\n");
            }

 //HERE COMES THE PROBLEM on $nearest == null:
            $nearest->addChild($tag);


            $container = $tag;
            $processed[] = $tag;
        }