Views error: missing schema in Drupal\Core\Config\Development\ConfigSchemaChecker

Drupal\Core\Config\Schema\SchemaIncompleteException: Schema errors for views.view.audit_log with the following errors: views.view.audit_log:display.advanced_audit_log_page.display_options.exposed_form.options missing schema in Drupal\Core\Config\Development\ConfigSchemaChecker->onConfigSave() (line 94 of core/lib/Drupal/Core/Config/Development/ConfigSchemaChecker.php).

I created a custom @ViewsExposedForm()

<?php

namespace Drupal\custom_audit_log\Plugin\views\exposed_form;

use Drupal\Core\Form\FormStateInterface;
use Drupal\views\Plugin\views\exposed_form\ExposedFormPluginBase;

/**
 * Exposed form plugin that provides an exposed form on Audit log views.
 *
 * @ingroup views_exposed_form_plugins
 *
 * @ViewsExposedForm(
 *   id = "custom_audit_log_exposed_form",
 *   title = @Translation("Audit Log exposed form"),
 *   help = @Translation("Audit Log exposed form")
 * )
 */
class AuditLogExposedForm extends ExposedFormPluginBase {

  /**
   * {@inheritdoc}
   */
  public function exposedFormAlter(&$form, FormStateInterface $form_state) {
    if (isset($form['user_name']) && isset($form['user_mail'])) {
      $form['user_name']['#access'] = FALSE;
      $form['user_mail']['#access'] = FALSE;

      $form['name_or_mail'] = [
        '#title' => $this->t('User name or email'),
        '#type' => 'textfield',
        '#size' => 50,
      ];

      $form['#submit'][] = [$this, 'customFormSubmit'];
    }
  }

  /**
   * {@inheritdoc}
   */
  public function exposedFormSubmit(&$form, FormStateInterface $form_state, &$exclude) {
    // Exlude the "name_or_mail" from view exposed_raw_input.
    // User can search by user name or user email on this input.
    // But on the backend we split the value on two separeted conditions.
    /* @see AuditLogExposedForm::customFormSubmit() */
    $exclude[] = 'name_or_mail';
    parent::exposedFormSubmit($form, $form_state, $exclude);
  }

  /**
   * Set the user_name and user_mail fields.
   *
   * @param array $form
   *   An associative array containing the structure of the form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The current state of the form.
   *
   * @noinspection PhpUnusedParameterInspection
   */
  public function customFormSubmit(array &$form, FormStateInterface $form_state) {
    $name_or_mail = trim($form_state->getValue('name_or_mail'));

    $form_state->setValue('user_name', $name_or_mail);
    $form_state->setValue('user_mail', $name_or_mail);
  }

}

And after saving the view I got an error

Drupal\Core\Config\Schema\SchemaIncompleteException: Schema errors for views.view.audit_log with the following errors: views.view.audit_log:display.advanced_audit_log_page.display_options.exposed_form.options missing schema in Drupal\Core\Config\Development\ConfigSchemaChecker->onConfigSave() (line 94 of core/lib/Drupal/Core/Config/Development/ConfigSchemaChecker.php).

To fix I create schema file:

modules/custom_audit_log/config/schema/custom_audit_log.exposed_form.schema.yml

# Schema for the views exposed form.
views.exposed_form.custom_audit_log_exposed_form:
  type: views_exposed_form
  label: 'Audit Log exposed form'