no copy property for landed cost voucher amount field
diff --git a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
index 3b45ca2..549c572 100755
--- a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
+++ b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
@@ -506,6 +506,7 @@
    "fieldname": "landed_cost_voucher_amount", 
    "fieldtype": "Currency", 
    "label": "Landed Cost Voucher Amount", 
+   "no_copy": 1, 
    "permlevel": 0, 
    "read_only": 1
   }, 
@@ -554,7 +555,7 @@
  ], 
  "idx": 1, 
  "istable": 1, 
- "modified": "2014-07-24 05:56:12.997533", 
+ "modified": "2014-07-30 18:13:18.337564", 
  "modified_by": "Administrator", 
  "module": "Stock", 
  "name": "Purchase Receipt Item",