[FIX] account_peppol: peppol_move_state

One flow wasn't considered in the PR that added a ready state:
- A user unchecks BIS3 XML generation and sending via Peppol in the send & print wizard
- `peppol_move_state` is set to `ready`, even though it's not possible to send it without the XML file, so it queues forever

This commit adds a `skipped` state. If the XML file is not generated, the `peppol_move_state`
is changed to `skipped` and the user needs to manually regenerate attachments to send the invoice via Peppol.
Also, the BIS3 checkbox shouldn't be deselected automatically when peppol checkbox is deselected.

Part-of: odoo/odoo#141258

addons/account_edi_ubl_cii/models/account_move_send.py

@@ -53,7 +53,7 @@ class AccountMoveSend(models.TransientModel):
     @api.depends('enable_ubl_cii_xml')
     def _compute_checkbox_ubl_cii_xml(self):
         for wizard in self:
-            wizard.checkbox_ubl_cii_xml = wizard.enable_ubl_cii_xml and wizard.company_id.invoice_is_ubl_cii
+            wizard.checkbox_ubl_cii_xml = wizard.enable_ubl_cii_xml and (wizard.checkbox_ubl_cii_xml or wizard.company_id.invoice_is_ubl_cii)
 
     # -------------------------------------------------------------------------
     # ATTACHMENTS

addons/account_peppol/i18n/account_peppol.pot

@@ -597,6 +597,11 @@ msgstr ""
 msgid "Send via PEPPOL"
 msgstr ""
 
+#. module: account_peppol
+#: model:ir.model.fields.selection,name:account_peppol.selection__account_move__peppol_move_state__skipped
+msgid "Skipped"
+msgstr ""
+
 #. module: account_peppol
 #: model_terms:ir.ui.view,arch_db:account_peppol.res_config_settings_view_form
 msgid ""

addons/account_peppol/models/account_move.py

@@ -13,6 +13,7 @@ class AccountMove(models.Model):
         selection=[
             ('ready', 'Ready to send'),
             ('to_send', 'Queued'),
+            ('skipped', 'Skipped'),
             ('processing', 'Pending Reception'),
             ('canceled', 'Canceled'),
             ('done', 'Done'),
@@ -24,6 +25,19 @@ class AccountMove(models.Model):
     )
     peppol_is_demo_uuid = fields.Boolean(compute="_compute_peppol_is_demo_uuid")
 
+    @api.model
+    def fields_get(self, allfields=None, attributes=None):
+        res = super().fields_get(allfields, attributes)
+
+        # the orm_cache does not contain the new selections added in stable: clear the cache once
+        peppol_move_state_field = self._fields['peppol_move_state']
+        if ('skipped', "Skipped") not in peppol_move_state_field.get_description(self.env)['selection']:
+            self.env['ir.model.fields'].invalidate_model(['selection_ids'])
+            self.env['ir.model.fields.selection']._update_selection(
+                'account.move', 'peppol_move_state', peppol_move_state_field.selection)
+            self.env.registry.clear_cache()
+        return res
+
     def action_cancel_peppol_documents(self):
         # if the peppol_move_state is processing/done
         # then it means it has been already sent to peppol proxy and we can't cancel

addons/account_peppol/wizard/account_move_send.py

@@ -130,6 +130,7 @@ class AccountMoveSend(models.TransientModel):
                     xml_file = invoice.ubl_cii_xml_id.raw
                     filename = invoice.ubl_cii_xml_id.name
                 else:
+                    invoice.peppol_move_state = 'skipped'
                     continue
 
                 if not invoice.partner_id.peppol_eas or not invoice.partner_id.peppol_endpoint: