Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 5256)
+++ /CKEditor/trunk/CHANGES.html	(revision 5257)
@@ -78,4 +78,5 @@
 		<li><a href="http://dev.fckeditor.net/ticket/4829">#4829</a> : [IE] Apply style from combo has wrong result on manual created selection.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4830">#4830</a> : Retrieving selected element isn't always right, especially selecting using keyboard (SHIFT+ARROW).</li>
+		<li><a href="http://dev.fckeditor.net/ticket/5128">#5128</a> : Element attribute inside preformatted text is incorrectly corrupted when converting to other blocks.</li>
 	</ul>
 	<h3>
Index: /CKEditor/trunk/_source/plugins/styles/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/styles/plugin.js	(revision 5256)
+++ /CKEditor/trunk/_source/plugins/styles/plugin.js	(revision 5257)
@@ -1,3 +1,3 @@
-/*
+/*
 Copyright (c) 2003-2010, CKSource - Frederico Knabben. All rights reserved.
 For licensing, see LICENSE.html or http://ckeditor.com/license
@@ -828,5 +828,5 @@
 
 		var pres = [];
-		splitedHtml.replace( /<pre>([\s\S]*?)<\/pre>/gi, function( match, preContent ){
+		splitedHtml.replace( /<pre\b.*?>([\s\S]*?)<\/pre>/gi, function( match, preContent ){
 			pres.push( preContent );
 		} );