Bug: Comment changed containing Ocsigen code blocks

[Julow]

Describe the bug

This code fails with the following error. This is Ocsigen's doc generator syntax.

(** {% <<code language="ocaml"|
        [%client (x : unit)]
    >> %}
*)

ocamlformat: Cannot process "src/lib/eliom_client.client.mli".
  Please report this bug at https://github.com/ocaml-ppx/ocamlformat/issues.
  BUG: comment changed.
File "_none_", line 1:
Error: formatting of doc-comment is unstable.
  before: (**  {% <<code language="ocaml"|
        [%client (x : unit)]
    >> %}
 *)
   after: (**  {%<<code language="ocaml"| \[%client (x: unit)]
    >> %}  *)

How to Reproduce

Snippet above with parse-docstrings=true.