Merge pull request #45865 from mihir-kandoi/st30672-2

fix: dont update rate of free item on save

erpnext/controllers/accounts_controller.py

@@ -823,7 +823,7 @@ class AccountsController(TransactionBase):
 									and item.get("use_serial_batch_fields")
 								)
 							):
-								if fieldname == "batch_no" and not item.batch_no:
+								if fieldname == "batch_no" and not item.batch_no and not item.is_free_item:
 									item.set("rate", ret.get("rate"))
 									item.set("price_list_rate", ret.get("price_list_rate"))
 								item.set(fieldname, value)