I think that the second case must show {org.clojure/clojure 3} similar to the third trial. Why do the quote operate differently in two cases? Is it intended or a bug?
This is intended. It isn’t related to the quote, but to the printer. In Clojure 1.9 (I think that’s the right version), they introduced a new reader/printer syntax for maps whose keys all have the same namespace qualifier. Which is that you don’t need to repeat the namespace qualifier for every key, you can put it once on the whole map as in your example.
I absolutely agree with you. But I think someone, who expect the quote will preserve visually the original form, might try to find the reason in the quote section firstly. So I added the sample in the quote section. For preventing the misunderstanding, I will add your comment in that section. Thanks for your indicating.