Overrides \Drupal\views\Plugin\views\filter\InOperator::init().
Overrides InOperator::init
public function init(ViewExecutable $view, DisplayPluginBase $display, array &$options = NULL) {
parent::init($view, $display, $options);
$this->entityType = $this
->getEntityType();
$this->entityInfo = entity_get_info($this->entityType);
$this->real_field = $this->entityInfo['entity_keys']['bundle'];
}