Ticket #45454: 45454.2.diff

src/wp-includes/rest-api/search/class-wp-rest-post-search-handler.php

@@ -68 +68 @@
                         $query_args['s'] = $request['search'];
                 }
 
+                /**
+                 * Filters the query arguments for a request.
+                 *
+                 * Enables adding extra arguments or setting defaults for a post search request.
+                 *
+                 * @since 5.0.3
+                 *
+                 * @param array           $query_args Key value array of query var to query value.
+                 * @param WP_REST_Request $request    The request used.
+                 */
+                $query_args = apply_filters( 'rest_post_search_query', $query_args, $request );
+
                 $query     = new WP_Query();
                 $found_ids = $query->query( $query_args );
                 $total     = $query->found_posts;