--- FrontendLoginController.php	2015-05-18 18:40:17.384705209 +0200
+++ FrontendLoginController.fix.php	2015-05-18 18:40:45.024704404 +0200
@@ -689,7 +689,7 @@
 									$redirect_domain = $match[1];
 									$found = FALSE;
 									foreach (GeneralUtility::trimExplode(',', $this->conf['domains'], TRUE) as $d) {
-										if (preg_match('/(^|\\.)/' . $d . '$', $redirect_domain)) {
+										if (preg_match('/(^|\\.)' . $d . '$/', $redirect_domain)) {
 											$found = TRUE;
 											break;
 										}