org-babel-execute-src-block filters characters from :session *shell* output

[Cook, Malcolm]

Hi,

While using:

        Org mode version 9.7.3 (9.7.3-2f1844 @ 
/home/mec/.dotfiles/emacs/.emacs.d/elpa/org-9.7.3/)
        GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo

Let me walk you through the issue:

#+begin_src sh
printf 'a\nb\nc\n>d\n<e\n'
#+end_src

#+RESULTS:
: a
: b
: c
: >d
: <e

Results look as expected. So far so good.

Now create a shell buffer (which will be named "*shell*")

#+begin_src elisp
(shell)
#+end_src

and try it again

#+begin_src sh
printf 'a\nb\nc\n>d\n<e\n'
#+end_src

#+RESULTS:
: a
: b
: c
: d
: <e

Huh? what happened to the ">" before the "d"?

Let's try it again.

First kill the *shell* buffer:

#+begin_src elisp
(let ((kill-buffer-query-functions nil)) (kill-buffer "*shell*"))
#+end_src

#+RESULTS:
: t


and try it again:

#+begin_src sh
printf 'a\nb\nc\n>d\n<e\n'
#+end_src

#+RESULTS:
: a
: b
: c
: >d
: <e

The ">" is back!

What is going on.

I'm pretty sure that `org-babel-comint--prompt-filter` is implicated which has 
had some recent changes (https://list.orgmode.org/87ttmn9fg0.fsf@localhost/T/) 
related to prompt filtering.

Any workarounds / patches most welcome!

Thanks!

~ Malcolm