[IMP] Restore lot information in '_prepare_orderlines_from_order_data'

pos_order_mgmt/static/src/js/widgets.js

@@ -210,18 +210,6 @@ odoo.define('pos_order_mgmt.widgets', function (require) {
             order.trigger('change');
             this.pos.get('orders').add(order);
             this.pos.set('selectedOrder', order);
-            order.get_orderlines().forEach(function (orderline) {
-                if (orderline.pack_lot_lines)
-                {
-                    _.each(orderline.return_pack_lot_names, function(lot_name) {
-                        orderline.pack_lot_lines.add(new models.Packlotline(
-                            {'lot_name': lot_name}, {'order_line': orderline}
-                        ));
-                    })
-                    order.save_to_db();
-                    orderline.trigger('change', orderline);
-                }
-            });
             return order;
         },
 
@@ -324,6 +312,18 @@ odoo.define('pos_order_mgmt.widgets', function (require) {
                     order.add_product(product,
                         self._prepare_product_options_from_orderline_data(
                             order, line, action));
+                    // Restore lot information.
+                    if (['return'].indexOf(action) !== -1) {
+                        var orderline = order.get_selected_orderline()
+                        if (orderline.pack_lot_lines) {
+                            _.each(orderline.return_pack_lot_names, function(lot_name) {
+                                orderline.pack_lot_lines.add(new models.Packlotline(
+                                    {'lot_name': lot_name}, {'order_line': orderline}
+                                ));
+                            })
+                            orderline.trigger('change', orderline);
+                        }
+                    }
                 }
             });
         },