@Override
  public boolean containsCommit(@NotNull CommitId id) {
    checkDisposed();
    try {
      return myCommitIdEnumerator.contains(id);
    }
    catch (IOException e) {
      myErrorHandler.handleError(VcsLogErrorHandler.Source.Storage, e);
    }
    return false;
  }
@Override
  public boolean containsCommit(@NotNull CommitId id)