refactor(account.invoice): se manda a llamar la funcion que verifica si se puede cancelar

l10n_mx_facturae/models/account_invoice.py

@@ -300,17 +300,17 @@ class AccountInvoice(models.Model):
 
     @api.multi
     def action_cancel(self,):
-        res = super(AccountInvoice, self).action_cancel()
         for account_invoice in self:
             # Maybe a third test could review state, but since
             # button cancel only is displayed in open state, we decided to not
             # used third test
+            account_invoice.check_if_can_cancel()
             if (
                     account_invoice.journal_id.sign_sat and
                     account_invoice.cfdi_folio_fiscal
             ):
                 account_invoice.cfdi_id.action_cancel()
-        return res
+                super(AccountInvoice, self).action_cancel()
 
     @staticmethod
     def _sanitize(text):