[fix] itemwise sales register add sales invoice to delivery note when update stock

in item wise sales register put sales invoice into delivery note field when delivery note is null and update stock ticked
diff --git a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
index 9f30349..39e38d7 100644
--- a/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
+++ b/erpnext/accounts/report/item_wise_sales_register/item_wise_sales_register.py
@@ -30,6 +30,8 @@
 		elif d.so_detail:
 			delivery_note = ", ".join(frappe.db.sql_list("""select distinct parent
 			from `tabDelivery Note Item` where docstatus=1 and so_detail=%s""", d.so_detail))
+		if not delivery_note and d.update_stock:
+			delivery_note = d.parent
 
 		row = [d.item_code, d.item_name, d.item_group, d.parent, d.posting_date, d.customer, d.customer_name,
 			d.customer_group, d.debit_to, d.mode_of_payment, d.territory, d.project, d.company, d.sales_order,
@@ -84,7 +86,7 @@
 			si_item.item_code, si_item.item_name, si_item.item_group, si_item.sales_order,
 			si_item.delivery_note, si_item.income_account, si_item.cost_center, si_item.qty,
 			si_item.base_net_rate, si_item.base_net_amount, si.customer_name,
-			si.customer_group, si_item.so_detail, si.mode_of_payment
+			si.customer_group, si_item.so_detail, si.update_stock, si.mode_of_payment
 		from `tabSales Invoice` si, `tabSales Invoice Item` si_item
 		where si.name = si_item.parent and si.docstatus = 1 %s
 		order by si.posting_date desc, si_item.item_code desc""" % conditions, filters, as_dict=1)