### Describe the issue

Testing in bitcoin 0.13.0, calling `bitcoin-cli listsinceblock x` is outputting all double-spent transactions that are in the wallet, even those that were double-spent well and truly before x.
### Is the issue reproducible?

Yes
#### List steps to reproduce below:
1.   Create a double-spend send to your wallet (easiest using bip125)
2.   Wait until one confirms, and then wait a few more blocks
3.   Run `bitcoin-cli listsinceblock $(bitcoin-cli getbestblockhash)` and it will output the double spent transaction
### Expected behavior

The double-spent transaction that was conflicted before the block hash should be filtered

auto i = pwallet->mapAddressBook.find(address);
            if (i != pwallet->mapAddressBook.end()) {
                entry.pushKV("label", i->second.name);
            }
            if (scriptPubKey.IsPayToScriptHash()) {
                const CScriptID& hash = CScriptID(boost::get<ScriptHash>(address));
                CScript redeemScript;
                if (pwallet->GetCScript(hash, redeemScript)) {
                    entry.pushKV("redeemScript", HexStr(redeemScript.begin(), redeemScript.end()));
                    
                    CTxDestination witness_destination;
                    if (redeemScript.IsPayToWitnessScriptHash()) {
                        bool extracted = ExtractDestination(redeemScript, witness_destination);
                        assert(extracted);
                        
                        const WitnessV0ScriptHash& whash = boost::get<WitnessV0ScriptHash>(witness_destination);
                        CScriptID id;
                        CRIPEMD160().Write(whash.begin(), whash.size()).Finalize(id.begin());
                        CScript witnessScript;
                        if (pwallet->GetCScript(id, witnessScript)) {
                            entry.pushKV("witnessScript", HexStr(witnessScript.begin(), witnessScript.end()));
                        }
                    }
                }
            } else if (scriptPubKey.IsPayToWitnessScriptHash()) {
                const WitnessV0ScriptHash& whash = boost::get<WitnessV0ScriptHash>(address);
                CScriptID id;
                CRIPEMD160().Write(whash.begin(), whash.size()).Finalize(id.begin());
                CScript witnessScript;
                if (pwallet->GetCScript(id, witnessScript)) {