Fix mbParseUrl if preg_replace returns null.

Author: cdujeu

core/src/core/src/pydio/Core/Utils/Vars/UrlUtils.php

@@ -44,6 +44,9 @@ function ($matches)
             },
             $url
         );
+        if($enc_url === null) {
+            return parse_url($url, $part);
+        }
 
         $parts = parse_url($enc_url, $part);