issue indent src block?

[zimoun]

Dear,
(please CC me because I have not subscribed)


I have noted unexpected alignment with source blocks. For example:

--8<---------------cut here---------------start------------->8---
#+begin_src shell
0
#+end_src

* One

  #+begin_src shell
  1
  #+end_src

** Two

   #+begin_src shell
   2
   #+end_src
--8<---------------cut here---------------end--------------->8---

where the blocks are filled using the usual C-c '.

I was expecting that 0, 1 and 2 aligned with the 'b' of 'begin'.
And if I move them by hand and them hit C-x h and Tab, they are placed
again as in the example above.


Is this alignment expected?
Do I misconfigure something? Even if I reproduce the behaviour with "emacs -q".


Emacs 26.3 and Org 9.3.6 comes from Guix
de5200ada9932501dbe010990ed1acf7688846a6.


Thank you in advance for any comment.

All the best,
simon