fix r10076 for #48615 - Ability to specify amount of time user is able to delete his last post in topic.

Authorised by: AcydBurn


git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@10080 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/install/database_update.php

@@ -1498,6 +1498,11 @@ function change_database_data(&$no_updates, $version)
 				_sql($sql, $errored, $error_ary);
 			}
 
+			if (!isset($config['delete_time']))
+			{
+				set_config('delete_time', $config['edit_time']);
+			}
+
 			$no_updates = false;
 		break;
 	}