[Bug]: Possible missing mutation.

What Happened

I think I don't fully understand this but given

<?php

// Product.php
namespace App;

class Product
{
    public function __construct(
        public string $name,
        public float $price,
        public int $stock
    ) {}

    public function isInStock(): bool
    {
        return $this->stock > 0;
    }
}

// tests/ProductTest.php
namespace Tests;

use App\Product;

test('product shows correct stock status', function () {
    $inStock = new Product('In Stock', 100, 5);
  //  $outOfStock = new Product('Out of Stock', 100, 0);

    expect($inStock->isInStock())->toBeTrue();
    // This assertion is commented out but mutation testing still shows 100% coverage
    // expect($outOfStock->isInStock())->toBeFalse();
});

How to Reproduce

Running ./vendor/bin/pest --mutate doesn't return the case of a product with no stock and reaches 100% mutation score without the
expect($outOfStock->isInStock())->toBeFalse(); expectation

Sample Repository

No response

Pest Version

3.7.1

PHP Version

8.3

Operation System

macOS

Notes

No response

Start by running ./vendor/bin/pest --mutate against the Product.php and tests/ProductTest.php example, then inspect the mutation report for the isInStock() case with stock set to zero. Compare the result with the commented assertion and document or test the expected mutation-testing behavior.