feat(account.invoice): se agrega el estado waiting

se extiende el campo state y se agrega ('waiting', 'To cancel')

l10n_mx_facturae/models/account_invoice.py

@@ -195,6 +195,8 @@ class AccountInvoice(models.Model):
         'cfdi.relation.type', 'CFDI Relation type',
     )
 
+    state = fields.Selection(selection_add=[('waiting', _('To cancel'))])
+
     @api.one
     @api.depends('state')
     def _compute_datetime(self):
@@ -214,7 +216,7 @@ class AccountInvoice(models.Model):
             date_invoice=False, payment_term=False, partner_bank_id=False,
             company_id=False, context=None,
     ):
-        # pylint: disable=too-many-arguments
+        # pylint: disable=too-many-arguments, redefined-builtin
         """Copy fields cfdi_use, payment_method_id and cfdi_adenda_id
         from selected partner
         """
@@ -278,13 +280,13 @@ class AccountInvoice(models.Model):
                     account_invoice.cfdi_folio_fiscal
             ):
                 cancelacion = account_invoice.cancel_cfdi()[0]
+                account_invoice.write({
+                    'state': account_invoice.cfdi_state,
+                })
                 if cancelacion:
-                    super(AccountInvoice, self).action_cancel()
+                    res = super(AccountInvoice, self).action_cancel()
                     account_invoice.unlink_cfdi()
-                    return
-                account_invoice.write({
-                    'state':account_invoice.cfdi_state,
-                    })
+                    return res
 
     @staticmethod
     def _sanitize(text):