What happened?

A call to exit() should stop and restart the worker script, but this isn't currently the case.

With a simple Symfony controller like this, $i should always be 0, but it is actually incrementing.

namespace App\Controller;

use Symfony\Component\Routing\Attribute\Route;

class HomeController
{
    #[Route('/')]
    public function __invoke(): string
    {
        static $i = 0;
        $i++;
        echo 'Hello '.$i;
        exit(0);
    }
}

This is likely the root cause of #1553, dunglas/symfony-docker#792, and dunglas/symfony-docker#773

Maybe @AlliBalliBab,a you have a clue of what's going on?