Laravel Version

12.8.1

PHP Version

8.3

Database Driver & Version

No response

Description

After the recent addition of Automatic Relation Loading (Eager Loading), #53655 , if you serialize your model,
you catch a error, of Serialization of 'Closure' is not allowed.

Many events/things in laravel (queue/broadcast) that depends on serialization of model are broken.

Steps To Reproduce

$user = User::first();
serialize($user);