Tom Muck wrote a good blog entry today talking about weirdness he say when he did a structCopy() operation on a CFC. To me, this was obviously a misunderstanding. CFCs aren't structs. But, like I mentioned in my post a few days ago, it can be confusing. My earlier entry mentioned how duplicate used to work on CFCs, but it returned something that wasn't really a CFC. It seems like structCopy has the same issues. You can see this clearly if you dump a CFC and compare it to the dump of a structCopied CFC.
So - remember - you can't duplicate or structCopy a CFC. Duplicate will throw an error in recent versions. StructCopy, unfortunately, will not. I'm going to file a bug report on this now.