X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/607b7e02d77e7326161e8ec15639052d2040f745..16e7b37c7914d753890c1a05a9335f3b43751eb8:/wp-includes/revision.php

diff --git a/wp-includes/revision.php b/wp-includes/revision.php
index b5886219..c166fbf1 100644
--- a/wp-includes/revision.php
+++ b/wp-includes/revision.php
@@ -321,9 +321,10 @@ function _wp_put_post_revision( $post = null, $autosave = false ) {
  * @since 2.6.0
  *
  * @param int|WP_Post $post   The post ID or object.
- * @param string      $output Optional. OBJECT, ARRAY_A, or ARRAY_N.
+ * @param string      $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which correspond to
+ *                            a WP_Post object, an associative array, or a numeric array, respectively. Default OBJECT.
  * @param string      $filter Optional sanitation filter. See sanitize_post().
- * @return WP_Post|array|null Null if error or post object if success.
+ * @return WP_Post|array|null WP_Post (or array) on success, or null on failure.
  */
 function wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') {
 	if ( !$revision = get_post( $post, OBJECT, $filter ) )
@@ -594,7 +595,13 @@ function _wp_preview_post_thumbnail_filter( $value, $post_id, $meta_key ) {
 		return $value;
 	}
 
-	if ( empty( $_REQUEST['_thumbnail_id'] ) || $post->ID != $post_id || '_thumbnail_id' != $meta_key || 'revision' == $post->post_type ) {
+	if ( empty( $_REQUEST['_thumbnail_id'] ) ||
+	     empty( $_REQUEST['preview_id'] ) ||
+	     $post->ID != $post_id ||
+	     '_thumbnail_id' != $meta_key ||
+	     'revision' == $post->post_type ||
+	     $post_id != $_REQUEST['preview_id']
+	) {
 		return $value;
 	}