reload packed item in patch, for migration from slow branch

patches/july_2013/p07_repost_billed_amt_in_sales_cycle.py

@@ -5,7 +5,8 @@ from __future__ import unicode_literals
 
 def execute():
 	import webnotes
+	webnotes.reload_doc('stock', 'doctype', 'packed_item')
 	for si in webnotes.conn.sql("""select name from `tabSales Invoice` where docstatus = 1"""):
 		webnotes.get_obj("Sales Invoice", si[0], 
 			with_children=1).update_qty(change_modified=False)
-		webnotes.conn.commit()
+		webnotes.conn.commit()