Accessing merged params in request on form-url-encoded content type

[ElnazNrz]

Laravel Version

9.52.9

PHP Version

8.2

Database Driver & Version

No response

Description

When merge an extra param in request and send request body in form-url-encoded type, merged param is not accessible on request but it is accessible on request helper

Steps To Reproduce

<?php

namespace App\Rules;

use Illuminate\Contracts\Validation\Rule;

class HasAvailableProviderRule implements Rule
{
    /**
     * Create a new rule instance.
     *
     * @return void
     */
    public function __construct()
    {
        //
    }

    /**
     * Determine if the validation rule passes.
     *
     * @param  string  $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value)
    {
        ...
        request()->merge(['bank_provider_id' => $bankProvider->id]);
        ...
    }
}

//in my controller
$request->input('bank_provider_id'); //this line return null
request()->bank_provider_id; //this line return the merged value

[crynobone]

Unfortunately there was a breaking change in Symfony which made us implement #47838. So this will probably stay, sorry.