Ticket #13382: 13382.2.diff

src/wp-includes/revision.php

@@ -43 +43 @@
                  * and 'post_author'.
                  *
                  * @since 2.6.0
+                 * @since 4.4.0 The `$post` parameter was added.
                  *
-                 * @param array $fields List of fields to revision. Contains 'post_title',
-                 *                      'post_content', and 'post_excerpt' by default.
+                 * @param array      $fields List of fields to revision. Contains 'post_title',
+                 *                           'post_content', and 'post_excerpt' by default.
+                 * @param null|array $post   A post array being processed for insertion as a post revision.
+                 *                           Null if no post was passed to the function.
                  */
-                $fields = apply_filters( '_wp_post_revision_fields', $fields );
+                $fields = apply_filters( '_wp_post_revision_fields', $fields, $post );
 
                 // WP uses these internally either in versioning or elsewhere - they cannot be versioned
                 foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect )