Built against `master` branch 801dd40666d1e6009920ad3ff755c7bb993b2a62:

If I have no wallet.dat file and run:

    bitcoind -usehd=0

A new wallet.dat file is created and an HD seed is assigned.

I see an error message in the source:

    "Error loading %s: You can't disable HD on an already existing HD wallet or create new non-HD wallets."

but that doesn't get shown because `fFirstRun` is true, and so the code which checks for `-usehd` values doesn't run.

If it's no longer possible to create non-HD wallets, specifying -usehd=0 when creating a wallet should be an error, and not get silently ignored.
if (!hashUnset())
            {
                std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(hashBlock);
                if (mi != pwallet->mapRequestCount.end())
                    nRequests = (*mi).second;
            }
        }
        else
        {
            
            std::map<uint256, int>::const_iterator mi = pwallet->mapRequestCount.find(GetHash());
            if (mi != pwallet->mapRequestCount.end())
            {
                nRequests = (*mi).second;
                
                if (nRequests == 0 && !hashUnset())
                {
                    std::map<uint256, int>::const_iterator _mi = pwallet->mapRequestCount.find(hashBlock);
                    if (_mi != pwallet->mapRequestCount.end())
                        nRequests = (*_mi).second;
                    else
                        nRequests = 1; 
                }
            }
        }
    }
    return nRequests;
}
void CWalletTx::GetAmounts(std::list<COutputEntry>& listReceived,