REST API: Correct error code for the maxItems keyword.

Follow-up to [50007].

Props TimothyBlynJacobs.
Reviewed by desrosj, SergeyBiryukov.
Merges [50461] to the 5.7 branch.
Fixes #52317.
Built from https://develop.svn.wordpress.org/branches/5.7@50470


git-svn-id: http://core.svn.wordpress.org/branches/5.7@50081 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/rest-api.php

@@ -2365,7 +2365,7 @@ function rest_validate_array_value_from_schema( $value, $args, $param ) {
 
 	if ( isset( $args['maxItems'] ) && count( $value ) > $args['maxItems'] ) {
 		return new WP_Error(
-			'test_too_many_items',
+			'rest_too_many_items',
 			/* translators: 1: Parameter, 2: Number. */
 			sprintf(
 				_n(

wp-includes/version.php

@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.7-RC1-50469';
+$wp_version = '5.7-RC1-50470';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.