Recently had a GFCI Breaker go bad. Or so I thought.
Breaker kept tripping as soon as you would turn it on.
I replaced the breaker. Tuned power on and all was good.
Or so I thought. I took my CFCI outlet tester and plugged it in to the outlet. It indicated Power/Neutral was reversed.

What????
So, back down and recheck the wiring on breaker.
Sure enough, I had the Power/Neutral wrong.
Corrected the issue, turned power on to breaker and INSTANTLY breaker trips.

Completely stumped now. Then I remember this same breaker controls the outside outlets. Turned the switch off to the outside outlets and a works as should.

My question is,
Why didn't the breaker trip when wired reversed?
Is that normal?

Again,
I now have it wired correctly. At least according to directions and diagram.
White wire in Nutral Load of breaker.
Black wire in Power Load of breaker.
Pigtail white from breaker to Nutral Bar.