None type i10n_es certificate

[avaltierrab]

Impacted versions: 17.0

Steps to reproduce: Using an spanish certificate in res.company (field -> l10n_es_edi_facturae_certificate_id) returns error none field.

Current behavior: When trying to save the changes you get the error:
RPC_ERROR Odoo Server Error Traceback (most recent call last): File "/home/odoo/src/odoo/17.0/odoo/http.py", line 1765, in _serve_db return service_model.retrying(self._serve_ir_http, self.env) File "/home/odoo/src/odoo/17.0/odoo/service/model.py", line 133, in retrying result = func() File "/home/odoo/src/odoo/17.0/odoo/http.py", line 1792, in _serve_ir_http response = self.dispatcher.dispatch(rule.endpoint, args) File "/home/odoo/src/odoo/17.0/odoo/http.py", line 1996, in dispatch result = self.request.registry['ir.http']._dispatch(endpoint) File "/home/odoo/src/odoo/17.0/odoo/addons/base/models/ir_http.py", line 222, in _dispatch result = endpoint(**request.params) File "/home/odoo/src/odoo/17.0/odoo/http.py", line 722, in route_wrapper result = endpoint(self, *args, **params_ok) File "/home/odoo/src/odoo/17.0/addons/web/controllers/dataset.py", line 24, in call_kw return self._call_kw(model, method, args, kwargs) File "/home/odoo/src/odoo/17.0/addons/web/controllers/dataset.py", line 20, in _call_kw return call_kw(request.env[model], method, args, kwargs) File "/home/odoo/src/odoo/17.0/odoo/api.py", line 468, in call_kw result = _call_kw_multi(method, model, args, kwargs) File "/home/odoo/src/odoo/17.0/odoo/api.py", line 453, in _call_kw_multi result = method(recs, *args, **kwargs) File "/home/odoo/src/odoo/17.0/addons/web/models/models.py", line 73, in web_save self = self.create(vals) File "<decorator-gen-364>", line 2, in create File "/home/odoo/src/odoo/17.0/odoo/api.py", line 414, in _model_create_multi return create(self, [arg]) File "/home/odoo/src/odoo/17.0/addons/l10n_es_edi_facturae/models/l10n_es_edi_facturae_certificate.py", line 54, in create if fields.datetime.now() > certif.not_valid_after: AttributeError: 'NoneType' object has no attribute 'not_valid_after'

Expected behavior: Get the certificate

Others: I have it already working by changing _decode_certificate function in path odoo\addons\l10n_es_edi_facturae\models\l10n_es_edi_facturae_certificate.py
`def _decode_certificate(self):
"""
Return certificate data

    :return tuple: private_key, certificate
    """
    self.ensure_one()
    content, password = b64decode(self.with_context(bin_size=False).content), self.password.encode() if self.password else None
   // *_dummy contains the actual certificate in first position and certificate doesn't have it
    private_key, certificate, certificates = pkcs12.load_key_and_certificates(content, password, backend=default_backend())
    if certificate == None:
        return private_key, certificates[0]
    else:
        return private_key, certificate`

I have already publish a pull request at: PR