When a block reward is spent together with other outputs in the wallet and that block reward is later orphaned, the wallet does not show the other funds as available anymore.  Even a `-rescan` is not enough - only `-zapwallettxes` or an explicit `abandontransaction` "recovers" the funds.  I prepared a [test case](https://github.com/domob1812/bitcoin/blob/wallet-bug-invalidated-block-rewards/test/functional/wallet_bug.py) that shows this behaviour.

Is this a known issue or the expected behaviour?  While this situation is something that will presumably not occur in practice (as it requires a long reorg), I wonder if that transaction should be automatically abandoned as it seems clear it won't be able to be confirmed anymore.
} else {
                // Legacy 
                for (auto spk_man  Instance->GetActiveScriptPubKeyMans()) {
                    if (!spk_man->SetupGeneration()) {
                        error = _("Unable to generate initial keys");
                        return nullptr;
                    }
                }
            }
        }
        if (chain) {
            Instance->chainStateFlushed(chain->getTipLocator());
        }
    } else if (_creation_flags & WALLET_FLAG_DISABLE_PRIVATE_KEYS) {
        // Make it impossible to disable private keys after creation
        error = strprintf(_("Error loading %s Private keys can only be disabled during creation"), File);
        return nullptr;
    } else if (Instance->IsWalletFlagSet(WALLET_FLAG_DISABLE_PRIVATE_KEYS)) {
        for (auto spk_man  Instance->GetActiveScriptPubKeyMans()) {
            if (spk_man->HavePrivateKeys()) {
                warnings.push_back(strprintf(_("Warning Private keys detected in  {%s} with disabled private keys"), File));
                break;
            }
        }
    }
    if (!args.GetArg("-addresstype", "").empty()) {
        stdoptional<OutputType> parsed = ParseOutputType(args.GetArg("-addresstype", ""));
        if (!parsed) {
            error = strprintf(_("Unknown address type '%s'"), args.GetArg("-addresstype", ""));
            return nullptr;