[FIX] sale_stock : Create backorder with inventory admin

Issue:
======
We have a delivery order created by a sale order by another user.
A user with administrator access to inventory and sale : own documents
only ,can't deliver products of
that sale order without backorder , it shows access error.

Steps to reproduce the error:
=============================
- Create another user with admin access for inventory and own documents
  for sale.
- Create a sale order with the current user.
- Change now for the inventory admin and deliver some of the products
  and click on no-backorder.
- Access error will show.

Origin of the issue:
====================
The admin user should be able to deliver the products but when creating
no backorder he needs to write on the sale_order.

Solution:
=========
Added `sudo` to the function that logs in the sale_order.

opw-3380566

closes odoo/odoo#138176

X-original-commit: de2d889b053827e39b11a648797ad2f30e646ce6
Signed-off-by: William Henrotin (whe) <whe@odoo.com>
Signed-off-by: Mahdi Cheikh Rouhou (macr) <macr@odoo.com>

addons/sale_stock/models/stock.py

@@ -150,7 +150,7 @@ class StockPicking(models.Model):
             }
             return self.env['ir.qweb']._render('sale_stock.exception_on_picking', values)
 
-        documents = self._log_activity_get_documents(moves, 'sale_line_id', 'DOWN', _keys_in_groupby)
+        documents = self.sudo()._log_activity_get_documents(moves, 'sale_line_id', 'DOWN', _keys_in_groupby)
         self._log_activity(_render_note_exception_quantity, documents)
 
         return super(StockPicking, self)._log_less_quantities_than_expected(moves)

addons/sale_stock/tests/test_sale_stock.py

@@ -1518,3 +1518,23 @@ class TestSaleStock(TestSaleCommon, ValuationReconciliationTestCommon):
         backorder_wizard.process()
 
         self.assertRecordValues(out_picking.move_line_ids, [{'result_package_id': False}, {'result_package_id': package_2.id}])
+
+    def test_inventory_admin_no_backorder_not_own_sale_order(self):
+        sale_order = self._get_new_sale_order()
+        sale_order.action_confirm()
+        pick = sale_order.picking_ids
+        inventory_admin_user = self.env['res.users'].create({
+            'name': "documents test basic user",
+            'login': "dtbu",
+            'email': "dtbu@yourcompany.com",
+            'groups_id': [(6, 0, [
+                self.ref('base.group_user'),
+                self.ref('stock.group_stock_manager'),
+                self.ref('sales_team.group_sale_salesman')])]
+        })
+        pick.with_user(inventory_admin_user).move_ids.write(
+            {'quantity_done': 1})
+        res_dict = pick.button_validate()
+        wizard = Form(self.env[(res_dict.get('res_model'))].with_user(inventory_admin_user).with_context(
+            res_dict['context'])).save()
+        wizard.with_user(inventory_admin_user).process_cancel_backorder()