[5.6] Make Auth/Recaller handle serialized and unserialized cookies (#…

…25167)

*          if remember_token is serialized we consider it invalid

*       make it work bothways instead

* Update Recaller.php

src/Illuminate/Auth/Recaller.php

@@ -21,7 +21,7 @@ class Recaller
      */
     public function __construct($recaller)
     {
-        $this->recaller = $recaller;
+        $this->recaller = @unserialize($recaller, false) ?: $recaller;
     }
 
     /**