diff --ignore-all-space -ru typo3_src_trunk.orig/t3lib/class.t3lib_stdgraphic.php typo3_src_trunk.new/t3lib/class.t3lib_stdgraphic.php
--- typo3_src_trunk.orig/t3lib/class.t3lib_stdgraphic.php	2011-01-16 07:46:33.000000000 +0300
+++ typo3_src_trunk.new/t3lib/class.t3lib_stdgraphic.php	2011-01-16 09:36:52.000000000 +0300
@@ -2357,8 +2357,8 @@
 	 */
 	function cacheImageDimensions($identifyResult) {
 		global $TYPO3_DB;
-			// Create a md5 hash of the filename
-		$md5Hash = md5_file($identifyResult[3]);
+			// Create a md5 hash of the filemtime and filesize
+		$md5Hash = md5(filemtime($identifyResult[3]) . filesize($identifyResult[3]));
 		if ($md5Hash) {
 			$fieldArr = array(
 				'md5hash' => $md5Hash,
@@ -2385,9 +2385,8 @@
 	 */
 	function getCachedImageDimensions($imageFile) {
 		global $TYPO3_DB;
-			// Create a md5 hash of the filename
-		$md5Hash = md5_file($imageFile);
-		preg_match('/([^\.]*)$/', $imageFile, $reg);
+			// Create a md5 hash of the filemtime and filesize
+		$md5Hash = md5(filemtime($imageFile) . filesize($imageFile));
 		$res = $TYPO3_DB->exec_SELECTquery('md5hash, imagewidth, imageheight', 'cache_imagesizes', 'md5filename=' . $TYPO3_DB->fullQuoteStr(md5($imageFile), 'cache_imagesizes'));
 		if ($res) {
 			if ($row = $TYPO3_DB->sql_fetch_assoc($res)) {
@@ -2395,6 +2394,7 @@
 						// file has changed, delete the row
 					$TYPO3_DB->exec_DELETEquery('cache_imagesizes', 'md5hash=' . $TYPO3_DB->fullQuoteStr($row['md5hash'], 'cache_imagesizes'));
 				} else {
+					preg_match('/([^\.]*)$/', $imageFile, $reg);
 					return (array((int) $row['imagewidth'], (int) $row['imageheight'], strtolower($reg[0]), $imageFile));
 				}
 			}
Only in typo3_src_trunk.new/t3lib: class.t3lib_stdgraphic.php.orig