Index: /trunk/src/wp-includes/rest-api/class-wp-rest-server.php
===================================================================
--- /trunk/src/wp-includes/rest-api/class-wp-rest-server.php	(revision 62769)
+++ /trunk/src/wp-includes/rest-api/class-wp-rest-server.php	(revision 62770)
@@ -1763,4 +1763,5 @@
 			if ( is_wp_error( $single_request ) ) {
 				$has_error    = true;
+				$matches[]    = $single_request;
 				$validation[] = $single_request;
 				continue;