I was messing around with min relay policies and found that under certain circumstances the mempool will accept things, then not relay to any peers.

Example made using wallet:
Transaction of size 6195, fee of 619 satoshis, minrelay of 100 satoshis per kvB. Mempool logic allows it:

```
        // No transactions are allowed below minRelayTxFee except from disconnected blocks
        if (!bypass_limits && nModifiedFees < ::minRelayTxFee.GetFee(nSize)) {
            return state.DoS(0, false, REJECT_INSUFFICIENTFEE, "min relay fee not met", false, strprintf("%d < %d", nModifiedFees, ::minRelayTxFee.GetFee(nSize)));
        }
```
and lets it into mempool

but in net_processing.cpp:

```
                    if (filterrate && txinfo.feeRate.GetFeePerK() < filterrate) {
                        continue;
                    }
```
this gets hit because the computed feerate is insufficient(printing I added):
```
0.00000099 BTC/kB
```

I'm not super at arithmetic so I'm opening this up in case someone has an easy fix. 

let me also get a reproducible test failure with this...
{
    std::shared_ptr<CWallet> const rpc_wallet = GetWalletForJSONRPCRequest(request);
    if (!EnsureWalletIsAvailable(rpc_wallet.get(), request.fHelp)) {
        return NullUniValue;
    }
    CWallet& wallet = *rpc_wallet;
    RPCHelpMan{
        "getbalances",
        "Returns an object with all balances in " + CURRENCY_UNIT + ".\n",
        {},
        RPCResult{
            "{\n"
            "    \"mine\": {                        (object) balances from outputs that the wallet can sign\n"
            "      \"trusted\": xxx                 (numeric) trusted balance (outputs created by the wallet or confirmed outputs)\n"
            "      \"untrusted_pending\": xxx       (numeric) untrusted pending balance (outputs created by others that are in the mempool)\n"
            "      \"immature\": xxx                (numeric) balance from immature coinbase outputs\n"
            "      \"used\": xxx                    (numeric) (only present if avoid_reuse is set) balance from coins sent to addresses that were previously spent from (potentially privacy violating)\n"
            "    },\n"
            "    \"watchonly\": {                   (object) watchonly balances (not present if wallet does not watch anything)\n"
            "      \"trusted\": xxx                 (numeric) trusted balance (outputs created by the wallet or confirmed outputs)\n"
            "      \"untrusted_pending\": xxx       (numeric) untrusted pending balance (outputs created by others that are in the mempool)\n"
            "      \"immature\": xxx                (numeric) balance from immature coinbase outputs\n"
            "    },\n"
            "}\n"},
        RPCExamples{
            HelpExampleCli("getbalances", "") +
            HelpExampleRpc("getbalances", "")},
    }.Check(request);