CWOF is not the same as "charges dismissed". IANAL either, but I have been a police officer and recall my police chief telling me that I had two options in a criminal matter, arrest or citation.
My interpretation of "CWOF" is that you were charged, the magistrate heard the case and gave you a break instead of a conviction. My non-lawyer opinion is that you were a defendant in this case.
If you filed the paperwork and failed to disclose this, you may have some explaining to do and might well get denied for lying on the application.
I am always of the opinion that if in doubt, disclose with an explanation up front. After the fact, I'd write a letter with "further information" and an explanation of why you didn't disclose earlier (confusion, thought it wasn't applicable, etc.) . . . probably best to consult an attorney before submitting anything at this point.
Well, I've already submitted, so too late for that.
I detailed on application the first time in front of a magistrate, left off the second time - I was admittedly a bit nervous - and only thought about possible bench warrant from 10+ years ago due to unpaid speeding ticket. So there may be 2 things they find I left off.
I left a message for my interview officer telling her I got some bad advice re: question 10 and maybe left off details that should go in. I don't want to appear as though I'm hiding anything so I asked her what my options were, i.e. re-applying, appending the application, etc. We'll see what she says.
At the end of the day I'd rather have everything out in the open and possibly get denied than have them come back to me saying "if only..."
Whatever. C'est la vie.