message: Fix NetworkHashPS defualt lookup window
diff: @@ -59,7 +59,7 @@ static UniValue GetNetworkHashPS(int lookup, int height) {
  // If lookup is -1, then use blocks since last difficulty change.
  if (lookup <= 0)
  - lookup = pb->nHeight % Params().GetConsensus().DifficultyAdjustmentInterval() + 1;
  + lookup = Params().GetConsensus().nZawyLwmaAveragingWindow;
  // If lookup is larger than chain, then set it to chain length.
  if (lookup > pb->nHeight)
  