Symfony version(s) affected

5.4.2

Description

Hello,

As a follow up of #38960, when a transition is made, a guard event is sent for every possible transition we are getting from.

However in our case those guard event listeners are quite resource-intensive (lots of checks are made in the DB).
Would there a way to not fire all of them when we know we will be doing only one transition?

How to reproduce

A sample I borrowed in #38960

signature:
  type: 'state_machine'
  audit_trail:
     enabled: true
  marking_store:
     type: 'method'
     property: 'state'
  initial_marking: created
  supports:
    - App\Entity\Signature
  places:
    - created
    - code_sent
    - signed
  transitions:
     send_code:
       from: created
       to: code_sent
     sign:
       from: code_sent
       to: signed

And the listener:

<?php

namespace App\Workflow\Guard;

use Symfony\Component\EventDispatcher\EventSubscriberInterface;
use Symfony\Component\Workflow\Event\GuardEvent;

class ReservationInProgressGuard implements EventSubscriberInterface
{
    public static function getSubscribedEvents(): array
    {
        return [
            'workflow.reservation.guard.send_code' => 'OnEvent',
            'workflow.reservation.guard.sign' => 'OnEvent',
        ];
    }

    public function OnEvent(GuardEvent $event): void
    {
        // Some heavy process which should be done only once per transition
    }
}

Possible Solution

It is stated in the doc guard events are always fired, but wouldn't it be possible to not fire them, or have an info in the even which states "OK I was called for the transition you listened to, let's not continue further" ?

Additional Context

No response