Revisions: remove the new _wp_last_revision_matches_current_post(), c…

…an be replaced by a simple revisions version check. Fixes #23913

git-svn-id: http://core.svn.wordpress.org/trunk@23885 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/post-template.php

@@ -1424,7 +1424,7 @@ function wp_list_post_revisions( $post_id = 0, $args = null ) {
 
 	// Since 3.6 revisions include a copy of the current post data as a revision.
 	// The following removes that revision when $parent == false
-	$parent_included = _wp_last_revision_matches_current_post( $post_id );
+	$parent_included = _wp_get_post_revision_version( reset( $revisions ) ) > 0;
 	if ( $parent_included && ! $parent )
 		array_shift( $revisions );
 	elseif ( ! $parent_included && $parent )

wp-includes/revision.php

@@ -657,49 +657,6 @@ function _wp_upgrade_revisions_of_post( $post ) {
 	return true;
 }
 
-/**
- * Determines if the specified post's most recent revision matches the post (by checking post_modified).
- *
- * @package WordPress
- * @subpackage Post_Revisions
- * @since 3.6.0
- *
- * @param int|object $post Post ID or post object.
- * @return bool false if not a match, otherwise true.
- */
-function _wp_last_revision_matches_current_post( $post ) {
-	if ( ! $post = get_post( $post ) )
-		return false;
-
-	if ( ! $revisions = wp_get_post_revisions( $post->ID ) )
-		return false;
-
-	foreach ( $revisions as $revision ) {
-		if ( false !== strpos( $revision->post_name, "{$revision->post_parent}-revision" ) ) {
-			$last_revision = $revision;
-			break;
-		}
-	}
-
-	// No revisions yet, only autosaves
-	if ( ! isset( $last_revision ) )
-		return false;
-
-	$post_has_changed = false;
-	if ( $last_revision->post_modified == $post->post_modified ) {
-		foreach ( array_keys( _wp_post_revision_fields() ) as $field ) {
-			if ( normalize_whitespace( $post->$field ) != normalize_whitespace( $last_revision->$field ) ) {
-				$post_has_changed = true;
-				break;
-			}
-		}
-	} else {
-		return false;
-	}
-
-	return ! $post_has_changed;
-}
-
 /**
  * Displays a human readable HTML representation of the difference between two strings.
  * similar to wp_text_diff, but tracks and returns could of lines added and removed