ThinkGood,
Yes, exactly. And it sounds like your device is that type too.
If the GFCI trips when miswired, I can't see no way it could supply power.
Ahh, hey, I got an idea. What if the text you quoted should have been: "...but the other receptacles still work" It doesn't take out the breaker, just the receptacles on it's own front.
If you have one of these devices, why don't you simply test reversing polarity?
