Address undefined index warning when a custom views field supports being "Exposed"

An alternative implementation could be something along the lines of this:

  foreach ($variables['form']['#info'] as $name => &$info) {
    $parts = explode('-', $name, 2);
    if (count($parts) === 2 && isset($info['description'], $variables['form'][$parts[1]]['#description'])) {
      $info['description'] = \Drupal::service('token')->replace($info['description']);
      $variables['form'][$parts[1]]['#description'] = $info['description'];
    }
  }

The Merge Request looks reasonable to me. I'll likely test it myself very soon.

For the tests.

smustgrave → closed merge request !36

Change seems small enough that probably don't need tests.

Automatically closed - issue fixed for 2 weeks with no activity.