Index: wp-includes/post.php
===================================================================
--- wp-includes/post.php	(version 24158)
+++ wp-includes/post.php	(working copy)
@@ -2649,7 +2649,7 @@
 			return 0;
 		}
 
-		$guid = get_post_field( 'guid', $post_ID );
+		$guid = get_post_field( 'guid', $post_ID, 'raw' );
 		$previous_status = get_post_field('post_status', $ID);
 	} else {
 		$previous_status = 'new';
@@ -2841,7 +2841,7 @@
 		}
 	}
 
-	$current_guid = get_post_field( 'guid', $post_ID );
+	$current_guid = get_post_field( 'guid', $post_ID, 'raw' );
 
 	// Set GUID
 	if ( !$update && '' == $current_guid )