[FIX] loyalty : unarchive archived rules and rewards

When archive a loyalty program which have somes rules and rewards and the unarchinving it will not have the rules and
rewards that it had before.

Steps to reproduce the error :
1- install sales
2- activate Discounts, Loyalty & Gift Card in sales settings
3- go to sales/products/Discount&loaylty
4- select one of the default programs and try to archive it and unarchive it after
5- you will not get the rules that it had before

The problem was in the toggle_active function of the loyalty program we try to unarchive already unarchived items because
we do ```program.rule_ids``` so it will get only active items.

opw-3299295

closes odoo/odoo#120902

Signed-off-by: Mahdi Cheikh Rouhou (macr) <macr@odoo.com>

addons/loyalty/models/loyalty_program.py

@@ -372,13 +372,14 @@ class LoyaltyProgram(models.Model):
             raise UserError(_('You can not delete a program in an active state'))
 
     def toggle_active(self):
-        super().toggle_active()
+        res = super().toggle_active()
         # Propagate active state to children
-        for program in self:
+        for program in self.with_context(active_test=False):
             program.rule_ids.active = program.active
             program.reward_ids.active = program.active
             program.communication_plan_ids.active = program.active
-            program.reward_ids.discount_line_product_id.active = program.active
+            program.reward_ids.with_context(active_test=True).discount_line_product_id.active = program.active
+        return res
 
     def write(self, vals):
         # There is an issue when we change the program type, since we clear the rewards and create new ones.

addons/loyalty/tests/test_loyalty.py

@@ -111,3 +111,17 @@ class TestLoyalty(TransactionCase):
             ],
         })
         self.assertTrue(all(r.reward_type == 'product' for r in self.program.reward_ids))
+
+    def test_archiving_unarchiving(self):
+        self.program.write({
+            'reward_ids': [
+                Command.create({
+                    'description': 'Test Product',
+                }),
+            ],
+        })
+        before_archived_reward_ids = self.program.reward_ids
+        self.program.toggle_active()
+        self.program.toggle_active()
+        after_archived_reward_ids = self.program.reward_ids
+        self.assertEqual(before_archived_reward_ids, after_archived_reward_ids)