### Describe the issue

bitcoin-qt: Debug pop-up window, Peers tab, right-click ban node for 1 hour, day, week, year does nothing. Disconnect node still works.
### Is the issue reproducible?

Yes.
#### List steps to reproduce below:
1. build master branch after commit https://github.com/bitcoin/bitcoin/commit/6423116741de2144872389cf63a621539ae79aaa
2. launch bitcoin-qt (on testnet is advisable)
3. test ban node list right-click functionality on Menu->Help->Debug pop-up window, Peers tab.

{
            CDataStream::size_type pos = GetRand(ssSend.size());
            char ch = (char)GetRand(256);
            ssSend.insert(ssSend.begin()+pos, ch);
        }
        break;
    }
    
    
    Fuzz(2);
}
unsigned int CConnman::GetReceiveFloodSize() const { return nReceiveFloodSize; }
unsigned int CConnman::GetSendBufferSize() const{ return nSendBufferMaxSize; }
CNode::CNode(NodeId idIn, ServiceFlags nLocalServicesIn, int nMyStartingHeightIn, SOCKET hSocketIn, const CAddress& addrIn, uint64_t nKeyedNetGroupIn, const std::string& addrNameIn, bool fInboundIn) :
    ssSend(SER_NETWORK, INIT_PROTO_VERSION),
    addr(addrIn),
    nKeyedNetGroup(nKeyedNetGroupIn),
    addrKnown(5000, 0.001),
    filterInventoryKnown(50000, 0.000001)
{
    nServices = NODE_NONE;
    nServicesExpected = NODE_NONE;
    hSocket = hSocketIn;
    nRecvVersion = INIT_PROTO_VERSION;
    nLastSend = 0;
    nLastRecv = 0;
    nSendBytes = 0;
    nRecvBytes = 0;
    nTimeConnected = GetTime();