Symfony version(s) affected

• 7.3.0
• 7.3.1
• 6.4.23

Description

Hello,

I notice weird behaviors with the Twig _self special variable:

rm -rf ./var/cache/*

Then I generate the cache with the browser, I get :

    <pre>
    _self : {{ _self }}
    </pre>

_self : App\Controller\HomeAction.html.twig

If I warm the cache with the CLI:

rm -rf ./var/cache/*
bin/console cache:warmup

When reloading the page, I get:

App/Controller/HomeAction.html.twig

We have slashes instead of backslashes this time.

I am on macOS.

How to reproduce

• https://github.com/strangebuzz/MicroSymfony/tree/reproducer/61099
• strangebuzz/MicroSymfony@e47805b

Possible Solution

No response

Additional Context

I was trying to use _self as a translation prefix and I noticed this weird behavior.