fix: added missing parentheses

php/includes/back-end/filters.php

@@ -53,7 +53,7 @@ if (function_exists('pll_get_term')) {
             mixed $original
         ): mixed {
             if ($_POST !== null) {
-                if isset($_POST['term_lang_choice']) {
+                if(isset($_POST['term_lang_choice'])) {
                     $lang = $_POST['term_lang_choice'];
 
                     if (!is_wp_error($lang)) {