To close a question as duplicate it is now suggested that the original question should have an answer "this question has been asked before and already has an answer". Another circumstance arises quite often, which is that the original poster is dissatisfied with the response to the original question, and instead of asking respondents for clarification or help simply posts the same question again.
Should the narrative for duplicate questions be revised to allow more explicitly for the case when the same person has asked the same question twice?
Personally I think such duplicates should be closed as a matter of course.
For example this question has been asked twice in short order. There is an answer to the original, but this may not be clear enough for the original poster.