update modified date to load blanket order field (#15332)

diff --git a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
index 0423588..52ec89c 100755
--- a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
+++ b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
@@ -2341,7 +2341,7 @@
  "issingle": 0, 
  "istable": 1, 
  "max_attachments": 0, 
- "modified": "2018-08-06 05:16:58.258276", 
+ "modified": "2018-09-06 15:14:18.663409", 
  "modified_by": "Administrator", 
  "module": "Buying", 
  "name": "Purchase Order Item",