Merge pull request #55047 from frappe/mergify/bp/version-15-hotfix/pr-55046

fix: stock balance showing incorrect value because of incorrect SLE (backport #55046)

erpnext/stock/stock_ledger.py

@@ -2480,7 +2480,9 @@ def get_stock_value_difference(
 	)
 
 	if voucher_detail_no:
-		query = query.where(table.voucher_detail_no != voucher_detail_no)
+		query = query.where(
+			(table.voucher_detail_no != voucher_detail_no) | (table.voucher_detail_no.isnull())
+		)
 
 	elif voucher_no:
 		query = query.where(table.voucher_no != voucher_no)