Fix HTML special characters handling in message list/header display (#1488523)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Fix HTML special characters handling in message list/header display (#1488523)
 - List related text/html part as attachment in plain text mode (#1488677)
 - Use IMAP BINARY (RFC3516) extension to fetch message/part bodies
 - Fix folder creation under public namespace root (#1488665)

program/include/rcube_utils.php

@@ -250,9 +250,6 @@ class rcube_utils
 
             $out = strtr($str, $encode_arr);
 
-            // avoid douple quotation of &
-            $out = preg_replace('/&([A-Za-z]{2,6}|#[0-9]{2,4});/', '&\\1;', $out);
-
             return $newlines ? nl2br($out) : $out;
         }