Weird SQL statement

[HZ89]

verison:0.2.3
log:

Nov 27 15:06:01 [27156]: (/home/harrison/Dropbox/project/go_path/src/github.com/HZ89/djob/store/store.go:746)
Nov 27 15:06:01 [27156]: [2017-11-27 15:06:01]  [10.45ms]  SELECT * FROM `executions`  WHERE `executions`.`name` = 'test1' AND `executions`.`region` = 'idc' AND `executions`.`group` = '0' AND `executions`.`run_node_name` = '' AND ((`name` = 'test1') AND (`region` = 'idc')) ORDER BY `executions`.`name` ASC LIMIT 1

When insert executions into databases, it will execution this sql, may be AND ((name = 'test1') AND (region = 'idc')) is superfluous