addmultisigaddress creates an address respecting the setting, being unable to generate a specific type of address without also adding it to the wallet seems wrong.

I suppose in the future `addresstype` may be refactored to be wallet-specific, which would leave this non-wallet rpc call without an argument. Perhaps there should just be an optional parameter to set it.
{
    WalletBatch batch(*database);
    if (!batch.TxnBegin())
        return false;
    int64_t nNow = GetAdjustedTime();
    
    CAccountingEntry debit;
    debit.nOrderPos = IncOrderPosNext(&batch);
    debit.strAccount = strFrom;
    debit.nCreditDebit = -nAmount;
    debit.nTime = nNow;
    debit.strOtherAccount = strTo;
    debit.strComment = strComment;
    AddAccountingEntry(debit, &batch);
    
    CAccountingEntry credit;
    credit.nOrderPos = IncOrderPosNext(&batch);
    credit.strAccount = strTo;
    credit.nCreditDebit = nAmount;
    credit.nTime = nNow;
    credit.strOtherAccount = strFrom;
    credit.strComment = strComment;
    AddAccountingEntry(credit, &batch);
    if (!batch.TxnCommit())
        return false;
    return true;
}
bool CWallet::GetLabelDestination(CTxDestination &dest, const std::string& label, bool bForceNew)