--- typo3_src-6.2.5/typo3/sysext/install/Classes/Updates/RteFileLinksUpdateWizard.php	2014-09-23 15:33:44.000000000 +0200
+++ typo3_src-6.2.5.new/typo3/sysext/install/Classes/Updates/RteFileLinksUpdateWizard.php	2014-10-17 14:29:05.028318700 +0200
@@ -194,7 +194,7 @@
 		if ($fileObject instanceof \TYPO3\CMS\Core\Resource\AbstractFile) {
 			// Next, match the reference path in the content to be sure it's present inside a <link> tag
 			$content = $record[$reference['field']];
-			$regularExpression = '$<((link|LINK) ' . str_replace(' ', '%20', $reference['ref_string']) . ').*>$';
+			$regularExpression = '$<((link|LINK) ' . str_replace('%2F', '/', rawurlencode($reference['ref_string'])) . ').*>$';
 			$matches = array();
 			$result = preg_match($regularExpression, $content, $matches);
 			if ($result) {