Bug: org-babel-execute:emacs-lisp does not allow changing window configuration from within code block [9.3 (release_9.3 @ /home/yantar92/.emacs.d/straight/build/org/)]

['Ihor Radchenko' <yantar92@gmail.com>]

Remember to cover the basics, that is, what you expected to happen and
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Recipe:

1. emacs -Q
2. Create the following org file

#+begin_src emacs-lisp
(split-window-below)
#+end_src

3. Execute the source block

Observed behaviour:

The block returns, but the window is not splitted

Expected behaviour:

The window is splitted

The reason of the observed behaviour is that
org-babel-execute:emacs-lisp wraps the code block evaluation into
save-window-excursion. Thus window manipulation is impossible from
within babel blocks.

The real case scenario when one would need to change window layout from
within babel block is a window setup for a project development.
If certain project requires working with specific window configuration,
this can be defined by adding all the setup into a babel block somewhere
in the project. Then, the layout could be applied just by hitting C-c
C-c on the code block once one need to work on the project. However, it
is not possible with the current org-babel-execute:emacs-lisp
implementation.

Best regards,
Ihor

Emacs  : GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, cairo version 1.16.0)
 of 2019-12-17
Package: Org mode version 9.3 (release_9.3 @ /home/yantar92/.emacs.d/straight/build/org/)
-- 
Ihor Radchenko,
PhD,
Center for Advancing Materials Performance from the Nanoscale (CAMP-nano)
State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China
Email: yantar92@gmail.com, ihor_radchenko@alumni.sutd.edu.sg