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...
else if (inv.type == MSG_FILTERED_BLOCK)
            {
                bool sendMerkleBlock = false;
                CMerkleBlock merkleBlock;
                if (pfrom->m_tx_relay != nullptr) {
                    LOCK(pfrom->m_tx_relay->cs_filter);
                    if (pfrom->m_tx_relay->pfilter) {
                        sendMerkleBlock = true;
                        merkleBlock = CMerkleBlock(*pblock, *pfrom->m_tx_relay->pfilter);
                    }
                }
                if (sendMerkleBlock) {
                    connman->PushMessage(pfrom, msgMaker.Make(NetMsgType::MERKLEBLOCK, merkleBlock));
                    
                    
                    
                    
                    
                    
                    typedef std::pair<unsigned int, uint256> PairType;
                    for (PairType& pair : merkleBlock.vMatchedTxn)
                        connman->PushMessage(pfrom, msgMaker.Make(SERIALIZE_TRANSACTION_NO_WITNESS, NetMsgType::TX, *pblock->vtx[pair.first]));
                }
                
                    
            }
            else if (inv.type == MSG_CMPCT_BLOCK)
            {