message: Use big endian inversed height in BuildInversedHeightKey
  Otherwise keys are not properly sorted.
diff: @@ -25,7 +25,7 @@ CQuorumBlockProcessor* quorumBlockProcessor;
  static const std::string DB_MINED_COMMITMENT = "q_mc";
  static const std::string DB_MINED_COMMITMENT_BY_INVERSED_HEIGHT = "q_mcih";
  -static const std::string DB_BEST_BLOCK_UPGRADE = "q_bbu";
  +static const std::string DB_BEST_BLOCK_UPGRADE = "q_bbu2";
  void CQuorumBlockProcessor::ProcessMessage(CNode* pfrom, const std::string& strCommand, CDataStream& vRecv, CConnman& connman)
  {
  @@ -168,9 +168,10 @@ bool CQuorumBlockProcessor::ProcessBlock(const CBlock& block, const CBlockIndex*
  // We store a mapping from minedHeight->quorumHeight in the DB
  // minedHeight is inversed so that entries are traversable in reversed order
  -static std::tuple<std::string, uint8_t, int> BuildInversedHeightKey(Consensus::LLMQType llmqType, int nMinedHeight)
  +static std::tuple<std::string, uint8_t, uint32_t> BuildInversedHeightKey(Consensus::LLMQType llmqType, int nMinedHeight)
  {
  - return std::make_tuple(DB_MINED_COMMITMENT_BY_INVERSED_HEIGHT, (uint8_t)llmqType, std::numeric_limits<int>::max() - nMinedHeight);
  + // nMinedHeight must be converted to big endian to make it comparable when serialized
  + return std::make_tuple(DB_MINED_COMMITMENT_BY_INVERSED_HEIGHT, (uint8_t)llmqType, htobe32(std::numeric_limits<uint32_t>::max() - nMinedHeight));
  }
  bool CQuorumBlockProcessor::ProcessCommitment(int nHeight, const uint256& blockHash, const CFinalCommitment& qc, CValidationState& state)
  @@ -422,7 +423,7 @@ std::vector<const CBlockIndex*> CQuorumBlockProcessor::GetMinedCommitmentsUntilB
  break;
  }
  - int nMinedHeight = std::numeric_limits<int>::max() - std::get<2>(curKey);
  + uint32_t nMinedHeight = std::numeric_limits<uint32_t>::max() - be32toh(std::get<2>(curKey));
  if (nMinedHeight > pindex->nHeight) {
  break;
  }
  