[FIX] Fix copy image bug pack

models/product_template.py

@@ -56,9 +56,11 @@ class ProductTemplate(models.Model):
                     product_parent_id = pack.pack_line_ids[0].product_id
                     pack.description_sale = product_parent_id.description_sale
                     if product_parent_id.image:
-                        pack.image = product_parent_id.image
-                        pack.image_small = product_parent_id.image_small
-                        pack.image_medium = product_parent_id.image_medium
+                        pack.write({
+                            'image': product_parent_id.image,
+                            'image_small': product_parent_id.image_small,
+                            'image_medium': product_parent_id.image_medium,
+                        })
                     if product_parent_id.product_image_ids:
                         pack.write({
                             'product_image_ids': [(6, 0, product_parent_id.product_image_ids.ids)]