Comments in org babel clojure blocks are not tangled out.
Let us take an example org file with the following contents:-
This org file contains only two source blocks and a total of ten lines.
#+begin_src clojure :noweb-ref "Define a constant"
(def e 2.72)
;;This is a comment on a line of its own
(def pi 3.14) ;;This is a comment not on a line of its own
#+end_src
The following block will be tangled
#+begin_src clojure :noweb yes :tangle ./output.clj
<<Define a constant>>
#+end_src
When I tangle the above file, the contents of the output.clj file are:-
(def e 2.72)
(def pi 3.14) ;;This is a comment not on a line of its own
The comment that was on a line of its own is missing from the tangled output.
Was able to reproduce on both emacs 29.3.50 and 29.4 on Ubuntu 22.04 LTS
Both were started using emacs -Q and then evaluating (require 'ob-clojure) as the only line of config.