Describe the bug
I accidentally stumbled upon this failure to format a file.

How to Reproduce
Steps to reproduce the behavior:

• What is the formatted file? Please try to minimize the code snippet.

let (>>=) = Caml.Result.bind

let f = (Ok ()) >>= (* *)
  (fun _ -> Ok ())

The problem seems to be that the comment gets dropped.

• What are the selected options?

(...)
break-infix-before-func=false (file .ocamlformat:21)
(...)

The option --print-config prints the configuration on the standard output, please put the result of this command in the report if you are not sure which option causes the issue.