STR:

1. Create new doc
2. Select "C" from "Language" menu
3. Type the code

void func1()
{
	//a {
	//}
	return;
}

"return" is not necessary. It is placed here to make the bug more visible.
4. Click menu "View->Fold All"

I expect folding like on picture 1.

Actually I get the case from picture 2.