diff -r 7b1b88e27a20 -r 48c4eec2b7e6 wp/wp-includes/rest-api/endpoints/class-wp-rest-menus-controller.php
--- a/wp/wp-includes/rest-api/endpoints/class-wp-rest-menus-controller.php	Thu Sep 29 08:06:27 2022 +0200
+++ b/wp/wp-includes/rest-api/endpoints/class-wp-rest-menus-controller.php	Fri Sep 05 18:40:08 2025 +0200
@@ -40,7 +40,7 @@
 	 * @since 5.9.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
-	 * @return bool|WP_Error True if the request has read access for the item, otherwise false or WP_Error object.
+	 * @return true|WP_Error True if the request has read access for the item, otherwise WP_Error object.
 	 */
 	public function get_item_permissions_check( $request ) {
 		$has_permission = parent::get_item_permissions_check( $request );
@@ -81,7 +81,7 @@
 	 * @since 5.9.0
 	 *
 	 * @param WP_REST_Request $request Full details about the request.
-	 * @return bool|WP_Error Whether the current user has permission.
+	 * @return true|WP_Error True if the current user has permission, WP_Error object otherwise.
 	 */
 	protected function check_has_read_only_access( $request ) {
 		if ( current_user_can( 'edit_theme_options' ) ) {
@@ -134,7 +134,10 @@
 		$data    = $this->filter_response_by_context( $data, $context );
 
 		$response = rest_ensure_response( $data );
-		$response->add_links( $this->prepare_links( $term ) );
+
+		if ( rest_is_field_included( '_links', $fields ) || rest_is_field_included( '_embedded', $fields ) ) {
+			$response->add_links( $this->prepare_links( $term ) );
+		}
 
 		/** This action is documented in wp-includes/rest-api/endpoints/class-wp-rest-terms-controller.php */
 		return apply_filters( "rest_prepare_{$this->taxonomy}", $response, $term, $request );
@@ -520,6 +523,10 @@
 	 * @return array Item schema data.
 	 */
 	public function get_item_schema() {
+		if ( $this->schema ) {
+			return $this->add_additional_fields_schema( $this->schema );
+		}
+
 		$schema = parent::get_item_schema();
 		unset( $schema['properties']['count'], $schema['properties']['link'], $schema['properties']['taxonomy'] );
 
@@ -531,7 +538,7 @@
 			),
 			'context'     => array( 'view', 'edit' ),
 			'arg_options' => array(
-				'validate_callback' => function ( $locations, $request, $param ) {
+				'validate_callback' => static function ( $locations, $request, $param ) {
 					$valid = rest_validate_request_arg( $locations, $request, $param );
 
 					if ( true !== $valid ) {
@@ -563,6 +570,8 @@
 			'type'        => 'boolean',
 		);
 
-		return $schema;
+		$this->schema = $schema;
+
+		return $this->add_additional_fields_schema( $this->schema );
 	}
 }