DZx1.5群组查询语句错误

DZx1.5从7.2升级上来之后点击群组，经常会提示下面的错误代码，重新刷新一下又好了

Discuz! Database Error

The database has encountered a problem. Need Help?

Error messages:

[Type] 查询语句错误 [1054] Unknown column 't.fid' in 'on clause' [Query] SELECT attach.*,t.tid,t.author,t.authorid,t.subject , f.name groupname FROM `forum_attachment` attach LEFT JOIN forum_forum f ON t.fid=f.fid LEFT JOIN forum_forumfield ff ON f.fid = ff.fid INNER JOIN `forum_thread` t ON `t`.`tid`=`attach`.`tid` AND `displayorder`>='0' WHERE `attach`.`dateline`>='1290700343' AND `attach`.`readperm`='0' AND `attach`.`price`='0' AND t.isgroup='1'AND `attach`.`isimage` IN ('1', '-1') ORDER BY `attach`.`dateline` DESC LIMIT 0,4;

Program messages:

[Line: 0034]group.php(require) [Line: 0140]source\module\group\group_index.php(include) [Line: 0423]data\template\1_diy_group_index.tpl.php(output) [Line: 1022]source\function\function_core.php(block_updatecache) [Line: 0204]source\function\function_block.php(block_groupattachment->getdata) [Line: 0298]source\class\block\group\block_groupattachment.php(DB->query) [Line: 0837]source\class\class_core.php(DB->_execute)

www.jkes.net 已经将此出错信息详细记录, 由此给您带来的访问不便我们深感歉意

请管理员帮忙解决

这个bug我已经提交过了并解决了。
访问group.php页面出现数据库出错
https://discuz.dismall.com/thread-2040512-1-1.html

演示地址：http://www.dataindex.org/group.php

不用提交了，官方早就出补丁修改方法了
https://discuz.dismall.com/thread-2040599-1-1.html