Sonata\Form\Type\CollectionType in modal/standard mode doesn't work

Environment

Sonata packages

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``` $ composer show --latest 'sonata-project/*' sonata-project/admin-bundle 4.2.1 4.3.1 The missing Symfony Admin Generator sonata-project/block-bundle 4.7.0 4.8.0 Symfony SonataBlockBundle sonata-project/cache 2.2.0 2.2.0 Cache library sonata-project/doctrine-extensions 1.14.0 1.15.0 Doctrine2 behavioral extensions sonata-project/doctrine-orm-admin-bundle 4.1.0 4.2.0 Integrate Doctrine ORM into the SonataAdminBundle sonata-project/exporter 2.8.0 2.9.1 Lightweight Exporter library sonata-project/form-extensions 1.12.0 1.12.1 Symfony form extensions sonata-project/intl-bundle 2.11.1 2.11.2 Symfony SonataIntlBundle sonata-project/twig-extensions 1.9.0 1.9.0 Sonata twig extensions ```

Symfony packages

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``` $ composer show --latest 'symfony/*' symfony/asset symfony/browser-kit symfony/cache symfony/cache-contracts symfony/config symfony/console symfony/debug symfony/dependency-injection symfony/deprecation-contracts symfony/doctrine-bridge symfony/dom-crawler symfony/dotenv symfony/error-handler symfony/event-dispatcher symfony/event-dispatcher-contracts symfony/expression-language symfony/filesystem symfony/finder symfony/flex symfony/form symfony/framework-bundle symfony/http-client-contracts symfony/http-foundation symfony/http-kernel symfony/inflector Package symfony/inflector symfony/intl symfony/mime symfony/monolog-bridge symfony/monolog-bundle symfony/options-resolver symfony/polyfill-intl-grapheme symfony/polyfill-intl-icu symfony/polyfill-intl-idn symfony/polyfill-intl-normalizer symfony/polyfill-mbstring symfony/polyfill-php72 symfony/polyfill-php73 symfony/polyfill-php80 symfony/polyfill-php81 symfony/process symfony/property-access symfony/proxy-manager-bridge symfony/routing symfony/security-acl symfony/security-bundle symfony/security-core symfony/security-csrf symfony/security-guard symfony/security-http symfony/serializer symfony/service-contracts symfony/stopwatch symfony/string symfony/swiftmailer-bundle symfony/templating symfony/translation symfony/translation-contracts symfony/twig-bridge symfony/twig-bundle symfony/validator symfony/var-dumper symfony/var-exporter symfony/webpack-encore-bundle symfony/yaml ``` v4.4.27 v5.3.4 Manages URL generation and versioning of web assets such as CSS stylesheets, JavaScript files and image files v4.4.27 v5.3.4 Simulates the behavior of a web browser, allowing you to make requests, click on links and submit forms programmatically v4.4.31 v5.3.10 Provides an extended PSR-6, PSR-16 (and tags) implementation v2.4.0 v2.4.0 Generic abstractions related to caching v4.4.30 v5.3.10 Helps you find, load, combine, autofill and validate configuration values of any kind v4.4.30 v5.3.10 Eases the creation of beautiful and testable command line interfaces v4.4.31 v4.4.31 Provides tools to ease debugging PHP code v4.4.31 v5.3.10 Allows you to standardize and centralize the way objects are constructed in your application v2.4.0 v2.4.0 A generic function and convention to trigger deprecation notices v4.4.31 v5.3.8 Provides integration for Doctrine with various Symfony components v4.4.30 v5.3.7 Eases DOM navigation for HTML and XML documents v4.4.29 v5.3.10 Registers environment variables from a .env file v4.4.30 v5.3.7 Provides tools to manage errors and ease debugging PHP code v4.4.30 v5.3.7 Provides tools that allow your application components to communicate with each other by dispatching events and listening to them v1.1.9 v2.4.0 Generic abstractions related to dispatching event v4.4.30 v5.3.7 Provides an engine that can compile and evaluate expressions v4.4.27 v5.3.4 Provides basic utilities for the filesystem v4.4.30 v5.3.7 Finds files and directories via an intuitive fluent interface v1.17.2 v1.17.2 Composer plugin for Symfony v4.4.31 v5.3.10 Allows to easily create, process and reuse HTML forms v4.4.31 v5.3.10 Provides a tight integration between Symfony components and the Symfony full-stack framework v2.4.0 v2.4.0 Generic abstractions related to HTTP clients v4.4.30 v5.3.10 Defines an object-oriented layer for the HTTP specification v4.4.32 v5.3.10 Provides a structured process for converting a Request into a Response v4.4.27 v5.3.4 Converts words between their singular and plural forms (English only) is abandoned, you should avoid using it. Use use `EnglishInflector` from the String component instead instead. v4.4.31 v5.3.8 Provides a PHP replacement layer for the C intl extension that includes additional data from the ICU library v4.4.31 v5.3.8 Allows manipulating MIME messages v4.4.27 v5.3.7 Provides integration for Monolog with various Symfony components v3.7.0 v3.7.1 Symfony MonologBundle v4.4.30 v5.3.7 Provides an improved replacement for the array_replace PHP function v1.23.1 v1.23.1 Symfony polyfill for intl's grapheme_* functions v1.23.0 v1.23.0 Symfony polyfill for intl's ICU-related data and classes v1.23.0 v1.23.0 Symfony polyfill for intl's idn_to_ascii and idn_to_utf8 functions v1.23.0 v1.23.0 Symfony polyfill for intl's Normalizer class and related functions v1.23.1 v1.23.1 Symfony polyfill for the Mbstring extension v1.23.0 v1.23.0 Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions v1.23.0 v1.23.0 Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions v1.23.1 v1.23.1 Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions v1.23.0 v1.23.0 Symfony polyfill backporting some PHP 8.1+ features to lower PHP versions v4.4.30 v5.3.7 Executes commands in sub-processes v4.4.30 v5.3.8 Provides functions to read and write from/to an object or array using a simple string notation v4.4.27 v5.3.4 Provides integration for ProxyManager with various Symfony components v4.4.30 v5.3.7 Maps an HTTP request to a set of configuration variables v3.2.0 v3.2.0 Symfony Security Component - ACL (Access Control List) v4.4.27 v5.3.8 Provides a tight integration of the Security component into the Symfony full-stack framework v4.4.31 v5.3.10 Symfony Security Component - Core Library v4.4.27 v5.3.4 Symfony Security Component - CSRF Library v4.4.27 v5.3.7 Symfony Security Component - Guard v4.4.30 v5.3.10 Symfony Security Component - HTTP Integration v4.4.31 v5.3.10 Handles serializing and deserializing data structures, including object graphs, into array structures or other formats like XML and JSON. v2.4.0 v2.4.0 Generic abstractions related to writing services v4.4.27 v5.3.4 Provides a way to profile code v5.3.7 v5.3.10 Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way v3.5.2 v3.5.2 Symfony SwiftmailerBundle v4.4.30 v5.3.7 Provides all the tools needed to build any kind of template system v4.4.32 v5.3.10 Provides tools to internationalize your application v2.4.0 v2.4.0 Generic abstractions related to translation v4.4.27 v5.3.7 Provides integration for Twig with various Symfony components v4.4.30 v5.3.10 Provides a tight integration of Twig into the Symfony full-stack framework v4.4.31 v5.3.10 Provides tools to validate values v4.4.31 v5.3.10 Provides mechanisms for walking through any arbitrary PHP variable v4.4.31 v5.3.8 Allows exporting any serializable PHP data structure to plain PHP code v1.12.0 v1.13.0 Integration with your Symfony app & Webpack Encore! v4.4.29 v5.3.6 Loads and dumps YAML files

PHP version

$ php -v
PHP 7.4.25 (cli) (built: Oct 20 2021 09:29:27) ( NTS Visual C++ 2017 x64 )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies

Subject

I have an admin form where I have added a Sonata\Form\Type\CollectionType field. The field is well implemented, when I click on the add button, the modal is showing with the form in it. But when I click on the create button, the modal fade and the new element is not showing as added to the collection.

Here is my code :

//  App\Admin\PhysicalPreorderContentAdmin.php (admin for "Content" entities)
protected function configureFormFields(FormMapper $form): void
{
...
   ->tab('Banners')
               ->with('Banners')
                   ->add('Banners', CollectionType::class,
                       array(
                           'label'        => false,
                           'required'     => false,
                           'by_reference' => false
                       ),
                       array(
                          'inline'       => 'standard',
                           'edit'         => 'standard',
                           'allow_delete' => true,
                           'allow_add'    => true,
                           'admin_code'   => 'sonata_admin_artistbanner',
                           'sortable'     => 'position'
                       ))

               ->end()
               ->end()
...
}

// App\Entity\Content.php

/**
     * @ORM\OneToMany(
     *     targetEntity="App\Entity\Banner",
     *     mappedBy="Content",
     *     orphanRemoval=true,
     *     cascade={"all"}
     * )
     * @ORM\OrderBy({"position" = "ASC"})
     */
    private $Banners;

...

/**
     * @param Collection $banners
     * @return $this
     */
    public function setBanners($banners): Content
    {

        $this->Banners = new ArrayCollection();
        if (empty($banners)) {
            return $this;
        }
        foreach ($banners as $banner) {
            $this->addBanner($banner);
        }

        return $this;
    }

    /**
     * Add Banners
     *
     * @param Banner $banners
     * @return Content
     */
    public function addBanner(Banner $banners): Content
    {
        $banners->setContent($this);
        $this->Banners[] = $banners;

        return $this;
    }

    /**
     * Remove Banners
     *
     * @param Banner $banners
     */
    public function removeBanner(Banner $banners)
    {
        $this->Banners->removeElement($banners);
    }

    /**
     * Get Banners
     *
     * @return Collection|Banner[]
     */
    public function getBanners()
    {
        return $this->Banners;
    }

// App\Entity\Banner.php

/**
     * @ORM\ManyToOne(targetEntity="App\Entity\Content", inversedBy="Banners")
     * @ORM\JoinColumn(name="content_id", referencedColumnName="id")
     */
    private $Content;

Steps to reproduce

Add a Sonata\Form\Type\CollectionType field on an admin class with "inline" => "standard" and "edit" => "standard" parameters in fieldDescriptionOptions parameter
When I click on the add button, the following request is getting me the modal view -> GET 200 http://127.0.0.1:8000/admin/fr/artistbanner/create?uniqid=s619b624b2f47c&code=sonata_admin_artistbanner&pcode=sonata_admin_physical_preorder_content&puniqid=s619b624ad0218

Then when I click on create via the modal view form, I have two requests executing -> This one first, which create the element successfully : POST 200 http://127.0.0.1:8000/admin/fr/artistbanner/create?uniqid=s619b624b2f47c

Then this one, which is I think supposed to replace html to show the newly created element in my form :

POST 200 http://127.0.0.1:8000/admin/fr/core/get-form-field-element?_sonata_admin=sonata_admin_physical_preorder_content&elementId=s619b624ad0218_Banners&uniqid=s619b624ad0218&_sonata_name=admin_sedona_umfinfoscombundle_preorder_create&_tab=tab_s619b610908738_1968181208_11

No errors in this last request, but it is returning this html response :

No matter if i'm on a new object or if i'm editing an existing one, the result is still the same. I saw an issue from 2016 (#4236) where someone had the same problem, it was a long thread but there was no solution for the modal way (the person who had the bug seems to have finally chosen to go on inline/table mode)

Am I actually doing this wrong ? I remember it was working well this way on an old sonata admin version (2.2)

Expected results

The element freshly created should be appended to your form

Actual results

No errors and no element added to the form.

sonata-project / SonataAdminBundle