docs: private void reconcile() {
  
      // If nonContiguousMsgIds is empty then nothing to reconcile.
      if (nonContiguousMsgIds.isEmpty()) {
        return;
      }
  
      // This happens when a passive is started after Active has moved on and
      // passive starts to see msgIDs starting from a number > 0.
      // Once the sync is completed, fast forward highestContiguousMsgId.
      // Post sync completion assuming platform will send all msgIds beyond highestContiguousMsgId.
      if (highestContiguousMsgId == -1L && isSyncCompleted) {
        Long min = nonContiguousMsgIds.last();
        LOGGER.info("Setting highestContiguousMsgId to {} from -1", min);
        highestContiguousMsgId = min;
        nonContiguousMsgIds.removeIf(msgId -> msgId <= min);
      }
  
      for (long msgId : nonContiguousMsgIds) {
        if (msgId <= highestContiguousMsgId) {
          nonContiguousMsgIds.remove(msgId);
        } else if (msgId > highestContiguousMsgId + 1) {
          break;
        } else {
          // the order is important..
          highestContiguousMsgId = msgId;
          nonContiguousMsgIds.remove(msgId);
        }
      }
  
    }