@Override
  public void contributorFinished(@NotNull SearchEverywhereContributor<?> contributor, boolean hasMore) {
    buffer.contributorFinished(contributor, hasMore);
    markContributorArrived(contributor);
    scheduleThrottlingFlush();
  }
@Override
  public void contributorFinished(@NotNull SearchEverywhereContributor<?> contributor, boolean hasMore)