I created a "virtual" binary sensor in my device, so I can put it in passive mode, so it is still available, sends it's sensors info but doesn't do any action. Doesn't switch on and off.

bool passiveMode = false;
...
#define CHILD_ID_PASSIVEMODE  4
MyMessage msgPassiveMode(CHILD_ID_PASSIVEMODE, V_STATUS);
...
void sendStatus() {
...
  send(msgPassiveMode.set(passiveMode));
}

void setup() {
...
  passiveMode = loadState(0);
}

void presentation() {
...
  present(CHILD_ID_PASSIVEMODE, S_BINARY, "ModoPasivo");
}
...
void receive(const MyMessage &message) {

  const uint16_t commandType = mGetCommand(message);
  if (commandType == 2) {
    if (message.type == V_STATUS && message.sensor == CHILD_ID_PASSIVEMODE) {
      send(msgPassiveMode.set(passiveMode));
    }
  }
  else if (commandType == 1) {
    if (message.type == V_STATUS && message.sensor == CHILD_ID_PASSIVEMODE) {
      if (message.bValue != passiveMode) {
        passiveMode = message.bValue;
        saveState(0, passiveMode);
      }
    }
}

Well, that's all the code added. In the first run, without the memory slot been set, returned a value of "1" for passiveMode. Then, I set it to "0" and requested it again, and it replied again "1".

I'm wondering what I I've misunderstood. Is not possible to store that value in the sketch as a boolean and rely on implicit conversions?
The problem can be:
The storage: Does saveState and readState understand true/false as 1/0?
The Set/Req: I interpret that those functions should enforce the conversions as message has a bValue property available and send has overloads for it.

I could change passiveMode to an uint8_t and never look back, but I need to understand what's the problem, here.