Friends, consider the following two questions:
In the US, what traffic control sign has eight sides?
In the US, what traffic control sign is red?
In both cases, the answer to the question is "a stop sign", but the fact that the two questions have the same answer does not make them duplicate questions.
I am of the opinion that recently there has been to many questions closed as "duplicate questions" because they had the same answer as an earlier question, when a close examination of the question shows that they were not duplicates, but two different questions which happened to have the same answer.
This can be a particular issue when one is dealing with novices who may not know the terminology to use in their question so that a search brings up the earlier question with the answer to their problem, or in cases where the problem might not seem to be the same because of the diverse nature of the meshes referenced in the two questions.
Particularly with new users, I think questions which have answers in another question should not just have the "This question already has an answer here", but rather that they should have an answer to their question that not only points to the question, but shows how the answer pointed to applies to their question.
As I demonstrated at the beginning of this proposal, identical answers do not automatically mean that the questions to which they are made are duplicate.