From 3d517153fa273409684c9c8b619bf993fdf80f87 Mon Sep 17 00:00:00 2001
From: Damyon Wiese <damyon@moodle.com>
Date: Fri, 3 Jul 2015 16:37:54 +0800
Subject: [PATCH] MDL-50757 upgrade: Unset config value that will never be used
 again

---
 lib/db/upgrade.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/db/upgrade.php b/lib/db/upgrade.php
index 5165ab0a94e..65dc98ca338 100644
--- a/lib/db/upgrade.php
+++ b/lib/db/upgrade.php
@@ -4128,6 +4128,8 @@ function xmldb_main_upgrade($oldversion) {
 
             // To skip running the same script on the upgrade to the next major release.
             set_config('upgrade_calculatedgradeitemsignored', 1);
+            // This config value is never used again.
+            unset_config('upgrade_calculatedgradeitemsonlyregrade');
         }
 
         // Main savepoint reached.