fix: pass unserialize options to cacti_unserialize

Author: somethingwithproof

thold_webapi.php

@@ -861,7 +861,7 @@ function applyTholdFilter() {
 function thold_new_graphs_save($host_id) {
 	$return_array = false;
 
-	$selected_graphs_array = cacti_unserialize(stripslashes(get_nfilter_request_var('selected_graphs_array', array('allowed_classes' => false))));
+	$selected_graphs_array = cacti_unserialize(stripslashes(get_nfilter_request_var('selected_graphs_array')), array('allowed_classes' => false));
 
 	$values = [];