Previously, when the attempting to decode a pdf or xml file as EDI attachment, if an xml or pdf file was malformed, we would log a warning (for pdf) or error (for xml).

There are tests in which we post messages to the chatter with an XML file with embedded PDF which is actually a generated report. These tests don't actually generate a valid PDF because wkhtmltopdf isn't available in those tests, but these tests also do not particularly care that the PDF is valid. Similarly, there are tests that post messages with xml attachments that don't contain valid xml but they also do not care that the xml in valid in those flows.

The linked enterprise PR adds an override of _message_post that will attempt to decode posted attachments so that it can take some action based on their contents. While this works perfectly fine and doesn't break any behaviour, as the decoding methods will simply return an empty list when the attachments are malformed, because they log warnings or errors, it causes tests/runbot to fail.

The information that an invalid xml or pdf was uploaded is not particularly useful or urgent information for the server admin, and users already get a notification when uploading a malformed file. As such, this commit changes these warning/exception logs to simple info logs. This means this information remains available but isn't given disporoportionate importance in the logs, and doesn't cause tests that work perfecly fine to fail.

task-3731034

This traceback arises when the user tries to create a new journal from the payment.

To reproduce this issue:

1) Install `accounting`
2) Create a new payment from `Accounting/vendors/payments` 
3) save the record and now remove the `journal` or make the `journal` field empty
5) A traceback arises.

Error:- 
```
KeyError: ('res.company', <function Company.__accessible_branches at 0x7fabdfc69c60>, (1,), False, 2)
  File "odoo/tools/cache.py", line 99, in lookup
    r = d[key]
  File "<decorator-gen-8>", line 2, in __getitem__
  File "odoo/tools/func.py", line 87, in locked
    return func(inst, *args, **kwargs)
  File "odoo/tools/lru.py", line 34, in __getitem__
    a = self.d[obj]
ValueError: not enough values to unpack (expected 1, got 0)
  File "odoo/models.py", line 5941, in ensure_one
    _id, = self._ids
ValueError: Expected singleton: res.company()
  File "odoo/http.py", line 2251, in __call__
    response = request._serve_db()
  File "odoo/http.py", line 1826, in _serve_db
    return self._transactioning(_serve_ir_http, readonly=ro)
  File "odoo/http.py", line 1847, in _transactioning
    return service_model.retrying(func, env=self.env)
  File "odoo/service/model.py", line 134, in retrying
    result = func()
  File "odoo/http.py", line 1824, in _serve_ir_http
    return self._serve_ir_http(rule, args)
  File "odoo/http.py", line 1832, in _serve_ir_http
    response = self.dispatcher.dispatch(rule.endpoint, args)
  File "odoo/http.py", line 2057, in dispatch
    result = self.request.registry['ir.http']._dispatch(endpoint)
  File "odoo/addons/base/models/ir_http.py", line 222, in _dispatch
    result = endpoint(**request.params)
  File "odoo/http.py", line 740, in route_wrapper
    result = endpoint(self, *args, **params_ok)
  File "addons/web/controllers/dataset.py", line 34, in call_kw
    return self._call_kw(model, method, args, kwargs)
  File "addons/web/controllers/dataset.py", line 30, in _call_kw
    return call_kw(request.env[model], method, args, kwargs)
  File "odoo/api.py", line 458, in call_kw
    result = getattr(recs, name)(*args, **kwargs)
  File "addons/web/models/models.py", line 1074, in onchange
    todo = [
  File "addons/web/models/models.py", line 1077, in <listcomp>
    if field_name not in done and snapshot0.has_changed(field_name)
  File "addons/web/models/models.py", line 1190, in has_changed
    return self[field_name] != self.record[field_name]
  File "odoo/models.py", line 6664, in __getitem__
    return self._fields[key].__get__(self, self.env.registry[self._name])
  File "odoo/fields.py", line 1138, in __get__
    self.recompute(record)
  File "odoo/fields.py", line 1353, in recompute
    apply_except_missing(self.compute_value, recs)
  File "odoo/fields.py", line 1326, in apply_except_missing
    func(records)
  File "odoo/fields.py", line 1375, in compute_value
    records._compute_field_value(self)
  File "addons/mail/models/mail_thread.py", line 416, in _compute_field_value
    return super()._compute_field_value(field)
  File "odoo/models.py", line 4982, in _compute_field_value
    fields.determine(field.compute, self)
  File "odoo/fields.py", line 102, in determine
    return needle(*args)
  File "addons/account/models/account_payment.py", line 369, in _compute_reconciliation_status
    liquidity_lines, counterpart_lines, writeoff_lines = pay._seek_for_lines()
  File "addons/account/models/account_payment.py", line 192, in _seek_for_lines
    if line.account_id in self._get_valid_liquidity_accounts():
  File "addons/account/models/account_payment.py", line 211, in _get_valid_liquidity_accounts
    accessible_branches = journal_comp.with_company(journal_comp)._accessible_branches()
  File "odoo/addons/base/models/res_company.py", line 420, in _accessible_branches
    return self.browse(self.__accessible_branches())
  File "<decorator-gen-107>", line 2, in __accessible_branches
  File "odoo/tools/cache.py", line 104, in lookup
    value = d[key] = self.method(*args, **kwargs)
  File "odoo/addons/base/models/res_company.py", line 402, in __accessible_branches
    self.ensure_one()
  File "odoo/models.py", line 5944, in ensure_one
    raise ValueError("Expected singleton: %s" % self)
```
When the user removes the journal, the company ID is taken from the journal, which leads to a traceback  from the line below.

https://github.com/odoo/odoo/blob/53d6d795ddf6cc9e470bfeb48bb31bc728acedbe/addons/account/models/account_payment.py#L207-L208

After applying this commit, resolve this issue by taking the default company, 
when there is no journal.

sentry-5054332731