Views does not properly ignore the query cache during preview.

During preview, views tries to ignore the query cache, but it does so incorrectly.

There is no second argument to DisplayPluginInterface::getPlugin().

    // Check for already-cached results.
    if (!empty($this->live_preview)) {
       // This is not a thing.
      $cache = $this->display_handler->getPlugin('cache', 'none');
    }
    else {
      $cache = $this->display_handler->getPlugin('cache');
    }

    if ($cache->cacheGet('results')) {
      if ($this->pager->usePager()) {
        $this->pager->total_items = $this->total_rows;
        $this->pager->updatePageInfo();
      }
    }