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...
}
        CBlockHeaderAndShortTxIDs cmpctblock;
        vRecv >> cmpctblock;
        bool received_new_header = false;
        {
        LOCK(cs_main);
        if (!LookupBlockIndex(cmpctblock.header.hashPrevBlock)) {
            
            if (!::ChainstateActive().IsInitialBlockDownload())
                connman->PushMessage(pfrom, msgMaker.Make(NetMsgType::GETHEADERS, ::ChainActive().GetLocator(pindexBestHeader), uint256()));
            return true;
        }
        if (!LookupBlockIndex(cmpctblock.header.GetHash())) {
            received_new_header = true;
        }
        }
        const CBlockIndex *pindex = nullptr;
        CValidationState state;
        if (!ProcessNewBlockHeaders({cmpctblock.header}, state, chainparams, &pindex)) {
            if (state.IsInvalid()) {
                MaybePunishNode(pfrom->GetId(), state,  true, "invalid header via cmpctblock");
                return true;
            }
        }
        
        
        
        
        bool fProcessBLOCKTXN = false;
        CDataStream blockTxnMsg(SER_NETWORK, PROTOCOL_VERSION);