Backport commit 18b680cfd from Emacs

* lisp/ol-eshell.el (org-eshell-open): Pass
'display-comint-buffer-action' to 'pop-to-buffer' instead of using
'pop-to-buffer-same-window'.

Fix bug#52467 by adding a new custom variable 'display-comint-buffer-action'
18b680cfd177e877991be2bd70ead628bbdc0aa0
Sam Steingold
Tue Dec 28 17:28:49 2021 -0500

[ km: Note that display-comint-buffer-action isn't available until
  Emacs 29.  A compatibility kludge will be added in a follow-up
  commit. ]

lisp/ol-eshell.el

@@ -46,7 +46,7 @@ followed by a colon."
          (eshell-buffer-name (car buffer-and-command))
          (command (cadr buffer-and-command)))
     (if (get-buffer eshell-buffer-name)
-	(pop-to-buffer-same-window eshell-buffer-name)
+	(pop-to-buffer eshell-buffer-name display-comint-buffer-action)
       (eshell))
     (goto-char (point-max))
     (eshell-kill-input)