[TwigBridge] Form option is settable only for first created form

[maxkain]

Symfony version(s) affected

5.4.2

Description

The problem appears when running symfony as a daemon with swoole web server. The option block_prefix is settable once. In other requests it is impossible to set this option to another value. Twig renders form as the block_prefix is not changed, although each time new form instance is created.

How to reproduce

Example is from EasyCorp\Bundle\EasyAdminBundle\Factory:

$this->symfonyFormFactory->createNamedBuilder($entityDto->getName(), CrudFormType::class, $entityDto->getInstance(), $formOptions->all());

If set first parameter to something random value the problem disappears.

And in controller set option like this:

if ($someCondition) {
    $field->getAsDto()->setFormTypeOption('block_prefix',  'some_prefix');
}

Possible Solution

I have decorated twig.form.engine (Symfony\Bridge\Twig\Form\TwigRendererEngine) with function, which is called on kernel.request event:

    public function init()
    {
        $this->resources = [];
    }

It works, but I am not sure it is the right solution.

Additional Context

No response

[xabbuh]

Can you investigate which properties would need to be reset after handling a request?

[maxkain]

Can you investigate which properties would need to be reset after handling a request?

I needed to reset only block_prefix property. But I think all properties should be reset.

[xabbuh]

@maxkain Can you try out #45909?

[maxkain]

@maxkain Can you try out #45909?

if this works:
$this->resources = [];
I think this will work too:
$this->defaultThemes = [];
$this->themes = [];
$this->useDefaultThemes = [];
$this->resources = [];
$this->resourceHierarchyLevels = [];

[nicolas-grekas]

It'd still be great if you could confirm please, we never know how bugs happen :)