Persistent typed property must not be accessed before initialization

[janfejtek]

Version: 3.1.2

Bug Description

When using non-nullable typed property marked as @persistent Error Typed property must not be accessed before initialization is thrown
This can be fixed by using nullable public ?int $id = null but I think that clearly marking variable as required for presenter is better for code readability.

Error occurs here:

application/src/Application/UI/Component.php

Line 164 in 1ed2d0a

$params[$name] = $this->$name;

Steps To Reproduce

class SomePresenter extends Presenter {
        /** @persistent */
        public int $id;
        
        public function actionSomething()
        {
        }
}

Possible Solution

Throw something like BadRequestException Missing parameter $id required by SomePresenter for typed properties
or
Do not throw error and skip all unitialized (or null) persistent values just by isset check