Hi,

I mean that in the Org buffer I have for example :

#+BEGIN_SRC ipython :session
  def fact(n):
      if n == 1:
          return 1
      else:
          return n * fact(n-1)
#+END_SRC

That is, there is a 2 spaces indentation of the whole code block, and the
code block is properly indented.
When I export it, I get :

def fact(n):
      if n == 1:
          return 1
      else:
          return n * fact(n-1)

in the IPython cell (basically, the notebook format is JSON and it is easy
to count those spaces in the code string in the JSON file)
and the 2 org-edit-src-content-indentation have been removed
only on the first line. The other ones have 6 or 10 spaces instead of 4 and
8.

Given that changing org-edit-src-content-indentation to 0 fixes this
problem, I wonder if there
is something wrong in the logic where this variable is used (only one place
in org-src).
But that could well be that it is not taken into account in places where it
should.

Regards,

Fabrice