private long getBranchLastPartTimestamp(BekBranch bekBranch) {
    List<Integer> prepareForInsertPart = bekBranch.getPrepareForInsertPart();
    if (prepareForInsertPart == null) return Long.MAX_VALUE;

    LOG.assertTrue(!prepareForInsertPart.isEmpty());
    int nodeIndex = prepareForInsertPart.get(0);
    return myTimestampGetter.getTimestamp(nodeIndex);
  }
private long getBranchLastPartTimestamp(BekBranch bekBranch)