There is an assert in `CWalletTx::RelayWalletTransaction` that gets hit.  All other code paths check `fBroadcastTransactions` before getting to `CWallet::ResendWalletTransactionsBefore` except the rpc call `resendwalletransactions`.

It's an easy fix, but we just need to decide whether to throw an error or return an empty array of rebroadcasted transaction ids.

Should be fixed for 0.15.
int nVersion = s.GetVersion();
        if (!(s.GetType() & SER_GETHASH))
            READWRITE(nVersion);
        READWRITE(nTime);
        READWRITE(vchPubKey);
        if (ser_action.ForRead()) {
            try {
                READWRITE(fInternal);
            }
            catch (std::ios_base::failure&) {
                /* flag as external address if we can't read the internal boolean
                   (this will be the case for any wallet before the HD chain split version) */
                fInternal = false;
            }
        }
        else {
            READWRITE(fInternal);
        }
    }
};
class CAddressBookData