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...
#include <util/bip32.h>
#include <util/fees.h>
#include <util/moneystr.h>
#include <util/system.h>
#include <util/url.h>
#include <util/validation.h>
#include <wallet/coincontrol.h>
#include <wallet/feebumper.h>
#include <wallet/psbtwallet.h>
#include <wallet/rpcwallet.h>
#include <wallet/wallet.h>
#include <wallet/walletdb.h>
#include <wallet/walletutil.h>
#include <stdint.h>
#include <univalue.h>
#include <functional>
static const std::string WALLET_ENDPOINT_BASE = "/wallet/";
static inline bool GetAvoidReuseFlag(CWallet * const pwallet, const UniValue& param) {
    bool can_avoid_reuse = pwallet->IsWalletFlagSet(WALLET_FLAG_AVOID_REUSE);
    bool avoid_reuse = param.isNull() ? can_avoid_reuse : param.get_bool();
    if (avoid_reuse && !can_avoid_reuse) {
        throw JSONRPCError(RPC_WALLET_ERROR, "wallet does not have the \"avoid reuse\" feature enabled");
    }
    return avoid_reuse;
}
/** Used by RPC commands that have an include_watchonly parameter.
 *  We default to true for watchonly wallets if include_watchonly isn't
 *  explicitly set.
 */
static bool ParseIncludeWatchonly(const UniValue& include_watchonly, const CWallet& pwallet)