~ fix route bug -> replacing forward slashes was based on $from value instead of $to part

Signed-off-by: Christoph Potas <christoph286@googlemail.com>

Author: puschie286

system/Router/Router.php

@@ -469,7 +469,7 @@ protected function checkRoutes(string $uri): bool
 				{
 					$val = preg_replace('#^' . $key . '$#', $val, $uri);
 				}
-				elseif (strpos($key, '/') !== false)
+				elseif (strpos($val, '/') !== false)
 				{
 					$val = str_replace('/', '\\', $val);
 				}