Add flow registration validation support

Type/CaptchaType.php

@@ -62,7 +62,8 @@ class CaptchaType extends AbstractType
             sprintf('%s%s', self::SESSION_KEY_PREFIX, $options['session_key']),
             $options['invalid_message'],
             $options['bypass_code'],
-            $options['humanity']
+            $options['humanity'],
+            $options['request']
         );
 
         $builder->addEventListener(FormEvents::POST_SUBMIT, array($validator, 'validate'));
@@ -121,6 +122,7 @@ class CaptchaType extends AbstractType
     public function configureOptions(OptionsResolver $resolver)
     {
         $this->options['mapped'] = false;
+        $this->options['request'] = null;
         $resolver->setDefaults($this->options);
     }
 

Validator/CaptchaValidator.php

@@ -8,6 +8,7 @@ use Symfony\Component\HttpFoundation\Session\SessionInterface;
 use Symfony\Component\Form\FormError;
 use Symfony\Component\Form\FormEvent;
 use Symfony\Contracts\Translation\TranslatorInterface;
+use Symfony\Component\HttpFoundation\Request;
 
 /**
  * Captcha validator.
@@ -54,13 +55,21 @@ class CaptchaValidator
      */
     private $translator;
 
+    /**
+     * Request
+     *
+     * @var Request
+     */
+    private $req;
+
     public function __construct(
         TranslatorInterface $translator,
         SessionInterface $session,
         string $key,
         string $invalidMessage,
         ?string $bypassCode,
-        int $humanity
+        int $humanity,
+        ?Request $req
     ) {
         $this->translator = $translator;
         $this->session = $session;
@@ -94,12 +103,13 @@ class CaptchaValidator
             }
         }
 
+        if (null == $this->req || 1 < $this->req->get('flow_registration_step')) {
             $this->session->remove($this->key);
-
             if ($this->session->has($this->key.'_fingerprint')) {
                 $this->session->remove($this->key.'_fingerprint');
             }
         }
+    }
 
     /**
      * Retrieve the expected CAPTCHA code.