Issue #3275106: Remove destination parameter when user clicks on "Log in" to make sure they a sent to confirmation page

src/Form/PasswordlessLoginForm.php

@@ -5,6 +5,7 @@ namespace Drupal\passwordless\Form;
 use Drupal\Core\Link;
 use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Url;
+use Drupal\passwordless\Routing\ConfirmationPageRedirectResponse;
 use Drupal\user\Form\UserPasswordForm;
 
 /**
@@ -112,6 +113,7 @@ class PasswordlessLoginForm extends UserPasswordForm {
       }
     }
 
-    $form_state->setRedirect($redirect);
+    $redirect = new ConfirmationPageRedirectResponse(Url::fromRoute($redirect, [], ['absolute' => TRUE])->toString());
+    $form_state->setResponse($redirect);
   }
 }