modify.action.inc doesn't check bundle filter is for the same entity

Problem/Motivation

When using VBO on a view with relationships, you can easily end up with multiple entities with the same bundle key (e.g. 'type' is a common bundle key). If you filter the bundle of one of these entities and use a VBO action on the other, _views_bulk_operations_modify_action_get_bundles() will apply the bundle restriction of the filtered entity on the actionable entity's VBO form.

  $info = entity_get_info($entity_type);
  $bundle_key = $info['entity keys']['bundle'];
  // Check if this View has a filter on the bundle key and assemble a list
  // of allowed bundles according to the filter.
  $filtered_bundles = array();
  if (!empty($bundle_key) && isset($view->filter[$bundle_key]) && !empty($view->filter[$bundle_key]->value)) {
    $operator = $view->filter[$bundle_key]->operator;
    if ($operator == 'in') {
      $filtered_bundles = $view->filter[$bundle_key]->value;
    }
    elseif ($operator == 'not in') {
      $bundle_names = array_keys($info['bundles']);
      $filtered_bundles = array_diff($bundle_names, $view->filter[$bundle_key]->value);
    }
  }

Proposed resolution

_views_bulk_operations_modify_action_get_bundles() should check that the filter is on the same relationship (or base table) as the action before applying the filter.