message: Don't reverify mempool spends.
diff: @@ -1107,6 +1107,7 @@ static bool AcceptToMemoryPoolWorker(const CChainParams& chainparams, CTxMemPool
  return state.DoS(100, error("%s: Failed to verify zerocoinspend proofs for tx %s", __func__,
  tx.GetHash().GetHex()), REJECT_INVALID);
  }
  + setBatchVerified.emplace(tx.GetHash());
  }
  if (test_accept) {
  