Ticket #38719: 38719.wip.diff

src/wp-includes/theme.php

@@ -2549 +2549 @@
  * @param WP_Post $changeset_post Changeset post object.
  */
 function _wp_customize_publish_changeset( $new_status, $old_status, $changeset_post ) {
-        global $wp_customize;
+        global $wp_customize, $wpdb;
 
         $is_publishing_changeset = (
                 'customize_changeset' === $changeset_post->post_type
@@ -2600 +2600 @@
          * and thus garbage collected.
          */
         if ( ! wp_revisions_enabled( $changeset_post ) ) {
+                $has_kses = ( false !== has_filter( 'content_save_pre', 'wp_filter_post_kses' ) );
+                if ( $has_kses ) {
+                        kses_remove_filters(); // Prevent KSES from corrupting JSON in post_content.
+                }
                 wp_trash_post( $changeset_post->ID );
+                if ( $has_kses ) {
+                        kses_init_filters();
+                }
+                // @todo Remove '__trashed' suffix from post_name.
+                // @todo Should wp_trash_post() be used at all? Or should an approach like wp_publish_post() be used?
         }
 }