Call a "multi-question" a question where a user asks two or more questions which are independent of one another, in the sense that they can be answered without reference to one another. For example, they have picked questions 3 and 4 from their homework, not 5)a) and 5)b). My question is as follows:
What to do if a question is a duplicate of one of the questions but not the other? It is a duplicate of question 3 but not question 4. Should the new one still be closed as a duplicate?
For example, this question is being proposed as a duplicate of this multiquestion.
When I came across the above example I saw no reason not to close it. But then I started to wonder. In elementary stuff, where answers are a few lines, then fine, sure, close them. But...what if the multi-question was actually two really deep questions? Such a question should be split into two, because otherwise the individual parts will not be given the attention they should be. And so a single-question "duplicate" may not gain as full answer as it deserves simply because someone came along in the past who was too lazy to post two separate questions and noone corrected them.
What say you?