[18.0][FIX] res not initialized

[wouitmil]

If we face EDINotImplementedError in exchange_process res is not initialized.

Traceback (most recent call last):
  File "/odoo/external-src/edi-framework/edi_core_oca/models/edi_backend.py", line 461, in exchange_process
    res = self._exchange_process(exchange_record)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/external-src/edi-framework/edi_core_oca/models/edi_backend.py", line 501, in _exchange_process
    exchange_function = self._get_exec_handler(exchange_record, "process")
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/external-src/edi-framework/edi_core_oca/models/edi_backend.py", line 685, in _get_exec_handler
    raise EDINotImplementedError(
odoo.addons.edi_core_oca.exceptions.EDINotImplementedError: No handler for process

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/odoo/external-src/queue/queue_job/controllers/main.py", line 116, in runjob
    self._try_perform_job(env, job)
  File "/odoo/external-src/queue/queue_job/controllers/main.py", line 39, in _try_perform_job
    job.perform()
  File "/odoo/external-src/queue/queue_job/job.py", line 495, in perform
    self.result = self.func(*tuple(self.args), **self.kwargs)
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/external-src/queue/queue_job/models/base.py", line 216, in auto_delay_wrapper
    return auto_delay_wrapper.origin(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/external-src/edi-framework/edi_core_oca/models/edi_exchange_record.py", line 444, in action_exchange_process
    return self.backend_id.exchange_process(self)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/odoo/external-src/edi-framework/edi_core_oca/models/edi_backend.py", line 478, in exchange_process
    if res != "__sql_error__":
       ^^^
UnboundLocalError: cannot access local variable 'res' where it is not associated with a value

[OCA-git-bot]

Hi @simahawk, @etobella,
some modules you are maintaining are being modified, check this out!

[vvrossem]

This PR contains 35 commits: I think rebasing is needed

[wouitmil]

This PR contains 35 commits: I think rebasing is needed

OUUUUUUUPS

[simahawk]

the commit msg would need some love ;)

[simahawk]

/ocabot merge patch

[OCA-git-bot]

Hey, thanks for contributing! Proceeding to merge this for you.
Prepared branch 18.0-ocabot-merge-pr-248-by-simahawk-bump-patch, awaiting test results.

[OCA-git-bot]

Congratulations, your PR was merged at c400231. Thanks a lot for contributing to OCA. ❤️