protected function duplicateRelation($model, $relation_name, $clone) {
		$relation = call_user_func([$model, $relation_name]);
		if (is_a($relation, 'Illuminate\Database\Eloquent\Relations\BelongsToMany')) {
			$this->duplicatePivotedRelation($relation, $relation_name, $clone);
		} else $this->duplicateDirectRelation($relation, $relation_name, $clone);
	}