Issue #3314234 by mediabounds, gabrieldv, jfurnas: Password history policy...

      if ($this->getPasswordService()->check($password, $hash->pass_hash)) {

        $configuration = $this->getConfiguration();

        if ($configuration['history_repeats'] == 0) {

          $validation->setErrorMessage($this->t('No one of the old passwords can be reused. Choose a different password'));

          $validation->setErrorMessage($this->t('Previous passwords cannot be reused. Choose a different password.'));

        }

        else {

          $validation->setErrorMessage($this->formatPlural($configuration['history_repeats'], 'The last @count password cannot be reused. Choose a different password.', 'The last @count passwords cannot be reused. Choose a different password.', ['@count' => $configuration['history_repeats']]));

        }

      }

    }

    return $validation;

  }