From 472f1ec59d30a98201792e8bdd9c1006618c472d Mon Sep 17 00:00:00 2001
From: Adam Silverstein <adamsilverstein@earthboundhosting.com>
Date: Fri, 29 Sep 2023 15:07:26 +0000
Subject: [PATCH] Revisions: slash meta values for autosave (preview)
 revisions.
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Correct an issue where meta values containing characters like quote `”` could not be previewed on published posts. The function `update_metadata` expects data to be slashed.

Also, add a test to confirm that storing JSON data which requires slashing in autosave meta works as expected, and improve naming for a data provider added in [56714].

Follow up to [56714].

Props mukesh27, spacedmonkey.
Fixes #20564.


Built from https://develop.svn.wordpress.org/trunk@56745


git-svn-id: http://core.svn.wordpress.org/trunk@56257 1a063a9b-81f0-0310-95a4-ce76da25c4cd
---
 .../rest-api/endpoints/class-wp-rest-autosaves-controller.php   | 2 +-
 wp-includes/version.php                                         | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php b/wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php
index cbc3dc4c90..d14119133a 100644
--- a/wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php
+++ b/wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php
@@ -421,7 +421,7 @@ class WP_REST_Autosaves_Controller extends WP_REST_Revisions_Controller {
 		if ( ! empty( $meta ) ) {
 			foreach ( $revisioned_meta_keys as $meta_key ) {
 				if ( isset( $meta[ $meta_key ] ) ) {
-					update_metadata( 'post', $revision_id, $meta_key, $meta[ $meta_key ] );
+					update_metadata( 'post', $revision_id, $meta_key, wp_slash( $meta[ $meta_key ] ) );
 				}
 			}
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 1a9cff07a7..e1f1e8a387 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-beta1-56744';
+$wp_version = '6.4-beta1-56745';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.