message: Fix crash bug with duplicate inputs within a transaction
  Introduced by
  Github-Pull:
  Tree-SHA512:
diff: @@ -2880,7 +2880,7 @@ bool CheckBlock(const CBlock& block, CValidationState& state, const Consensus::P
  // Check transactions
  for (const auto& tx : block.vtx)
  - if (!CheckTransaction(*tx, state, false))
  + if (!CheckTransaction(*tx, state, true))
  return state.Invalid(false, state.GetRejectCode(), state.GetRejectReason(),
  strprintf("Transaction check failed (tx hash %s) %s", tx->GetHash().ToString(), state.GetDebugMessage()));
  