[BUG] ob-R tests fail on Emacs 27 since ESS commit 536b5b914a7 [9.7-pre (release_9.6.4-318-gcfe5e0.dirty @ /home/yantar92/.emacs.d/straight/build/org/)]

[Ihor Radchenko <yantar92@posteo.net>]

Steps to reproduce:

1. cd /path/to/org/git/repo
2. make test EMACS=emacs-27 BTEST_POST="-L /path/to/ESS/lisp -l ob-R -l ess -l ess-r-mode" BTEST_RE="async"

3 unexpected results:
   FAILED  ob-session-async-R-named-output
   FAILED  ob-session-async-R-output-drawer
   FAILED  ob-session-async-R-simple-session-async-output

The tests started failing since 2023/04/04.
https://builds.sr.ht/~bzg/job/968099

I bisected the failure down to the following ESS commit:

536b5b914a75afa37ee05aa8ba0aecd0f9c9eb33
Author:     Lionel Henry <lionel.hry@gmail.com>
AuthorDate: Mon Apr 3 13:01:11 2023 +0200
Commit:     Lionel Henry <lionel.hry@gmail.com>
CommitDate: Mon Apr 3 13:01:11 2023 +0200

Parent:     fef059c3 Wait for process after `ess-r-post-run-hook`
Contained:  master
Follows:    ESSRv1.8 (21)

Move `ess-r` startup commands out of `ess-r-post-run-hook`

They are blocking commands and the user might have added streaming
commands to the hook.

Also document why users should be careful when mixing blocking and
streaming commands.

------

I am not sure what is going on as ob-R does not really use the changed
hooks. The suspects are

(ess-execute-screen-options t)
(ess-set-working-directory default-directory)))

In particular, I think that `ess-execute-screen-options' is doing
something funny because one of the tests fails with

"1:5" outputting

 1 2 3
 4 5

split into two lines, which looks like some text filling problem.

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
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