### 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.

{
    {
        LOCK(cs_setBanned);
        setBanned.clear();
        setBannedIsDirty = true;
    }
    DumpBanlist(); 
    if(clientInterface)
        clientInterface->BannedListChanged();
}
bool CConnman::IsBanned(CNetAddr ip)
{
    bool fResult = false;
    {
        LOCK(cs_setBanned);
        for (banmap_t::iterator it = setBanned.begin(); it != setBanned.end(); it++)
        {
            CSubNet subNet = (*it).first;
            CBanEntry banEntry = (*it).second;
            if(subNet.Match(ip) && GetTime() < banEntry.nBanUntil)
                fResult = true;
        }
    }
    return fResult;
}
bool CConnman::IsBanned(CSubNet subnet)