Index: typo3/sysext/cms/tslib/class.tslib_content.php
===================================================================
--- typo3/sysext/cms/tslib/class.tslib_content.php	(revision 6055)
+++ typo3/sysext/cms/tslib/class.tslib_content.php	(working copy)
@@ -7339,7 +7339,7 @@
 					'md5hash = \'' . $requestHash . '\' AND ( expires > ' . $GLOBALS['EXEC_TIME'] . ' OR expires = 0 )'
 				);
 
-				if (!empty($cacheEntry[0]['treelist'])) {
+				if (count($cacheEntry) > 0) {
 						// cache hit
 					return $cacheEntry[0]['treelist'];
 				}