Org-babel shell evaluate with session does not return results

[Giri Prashanth <giri.prashanth@gmail.com>]

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Hi,

I am trying to run a shell commands from org-mode with using sessions.

I would like to use the session property, so I could continue with the
previous history. But when I execute the following,

#+BEGIN_SRC shell :session test
echo foo
#+END_SRC

nothing happens with emacs is unresponsive and the echo area says:
executing Shell code block...

I am able to quit with C-g and there is buffer with name test created which
has bash prompt.

I was also able to run the shell commands without session and it returns
the output, like below
#+BEGIN_SRC shell
echo foo
#+END_SRC

#+RESULTS:
: foo

Any reason why org babel execute for shell with session does not terminate ?
Thank you very much in advance for any response,

-GP

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