packing list issue fixed
diff --git a/erpnext/selling/doctype/sales_common/sales_common.py b/erpnext/selling/doctype/sales_common/sales_common.py
index ff65e8c..57724ac 100644
--- a/erpnext/selling/doctype/sales_common/sales_common.py
+++ b/erpnext/selling/doctype/sales_common/sales_common.py
@@ -537,7 +537,8 @@
 				# mark for deletion from doclist
 				delete_list.append(d.name)
 
-		if not delete_list: return
+		if not delete_list:
+			return obj.doclist
 		
 		# delete from doclist
 		obj.doclist = filter(lambda d: d.name not in delete_list, obj.doclist)