Yes, there are two different versions of this question. I can't look up the OG 10th edition one right now to see how they explained that one, but it is not unusual to see changes over different editions - they sometimes change their minds on things. Also, explanations are sometimes not the greatest - sometimes, for one explanation, they'll say something doesn't work as though it never works in any circumstances, but all they mean is that it doesn't work for this sentence structure, without explaining exactly why or when it could work. :)