fix: serial and batch bundle return not working (#38754)

* fix: serial and batch bundle return not working

* test: added test case for delivery note return against denormalized serial no

erpnext/controllers/stock_controller.py

@@ -463,6 +463,12 @@ class StockController(AccountsController):
 		sl_dict.update(args)
 		self.update_inventory_dimensions(d, sl_dict)
 
+		if self.docstatus == 2:
+			# To handle denormalized serial no records, will br deprecated in v16
+			for field in ["serial_no", "batch_no"]:
+				if d.get(field):
+					sl_dict[field] = d.get(field)
+
 		return sl_dict
 
 	def update_inventory_dimensions(self, row, sl_dict) -> None: