Bug 23809: Correction to selectall_arrayref call.

This patch adds the missing `{ Slice => {} }` attribute to the database
call introduced in bug 23265 to fix the use of Koha::Objects introduced
originally in bug 12063.

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

installer/data/mysql/updatedatabase.pl

@@ -14358,7 +14358,7 @@ if( CheckVersion( $DBversion ) ) {
         SELECT expirationdate, waitingdate, branchcode
         FROM reserves
         WHERE found = 'W' AND priority = 0
-    |);
+    |, { Slice => {} });
     my $update_sth = $dbh->prepare(q|
         UPDATE reserves
         SET expirationdate = ?