From eb85852a188492bfc8da51ea34bfa1aaa28b4868 Mon Sep 17 00:00:00 2001
From: Alan Woodward <romseygeek@gmail.com>
Date: Wed, 13 Jun 2018 10:53:18 +0100
Subject: [PATCH] index_prefixes back-compat should test 6.3 (#30951)