From 24b83db9c2a5ada218fc72e35b5bf64c6e5dee5f Mon Sep 17 00:00:00 2001
From: Sam Minnee <sam@silverstripe.com>
Date: Wed, 12 May 2010 05:29:27 +0000
Subject: [PATCH] BUGFIX: Prevent DataDifferencer from creating empty <ins />
 and <del /> takes that confuse the browser.

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/branches/2.4@104675 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 code/Diff.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/code/Diff.php b/code/Diff.php
index b7c5f9d9..708cc814 100755
--- a/code/Diff.php
+++ b/code/Diff.php
@@ -686,6 +686,10 @@ class Diff
 			$doc = new SS_HTMLValue($content);
 			$content = $doc->getContent();
 		}
+
+		// Remove empty <ins /> and <del /> tags because browsers hate them
+		$content = preg_replace('/<(ins|del)[^>]*\/>/','', $content);
+
 		return $content;
 	}