From 61b005822b19f051f38a30619926ca6c79c8e0da Mon Sep 17 00:00:00 2001
From: Nick Clemens <nick@bywatersolutions.com>
Date: Thu, 3 Sep 2020 16:35:57 +0000
Subject: [PATCH] Bug 26374: update from bug 19974 is not idempotent

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
---
 installer/data/mysql/updatedatabase.pl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/installer/data/mysql/updatedatabase.pl b/installer/data/mysql/updatedatabase.pl
index c21cf53ffd..9b11e9963c 100755
--- a/installer/data/mysql/updatedatabase.pl
+++ b/installer/data/mysql/updatedatabase.pl
@@ -15896,7 +15896,7 @@ if( CheckVersion( $DBversion ) ) {
                 value="batchmod,moredetail,cronjob,additem"
             WHERE variable="MarkLostItemsAsReturned"
         });
-    } else {
+    } elsif ( $original_value == 0 || !defined($original_value) )  {
         $dbh->do(q{
             UPDATE systempreferences
             SET type="multiple",
-- 
2.20.1