远程一对多根据关联条件查询问题

这个地方驼峰为什么转下划线 生成的SQL有问题
一对一关联 一对多关联hasWhere()方法都没有转下划线

SELECT
	`UserOrder`.*,
	`user_order`.* 
FROM
	`tb_user_order` `UserOrder`
	INNER JOIN `tb_order_status` `OrderStatus` ON `UserOrder`.`ID` = `OrderStatus`.`ID`
	INNER JOIN `tb_place_order_assign_manager` ON `tb_place_order_assign_manager`.`ORDER_ID` = `user_order`.`ID`
	JOIN `tb_manager_user` ON `tb_manager_user`.`ID` = `tb_place_order_assign_manager`.`MANAGER_ID` 
WHERE
	`tb_manager_user`.`username` LIKE '%测试%' 
GROUP BY
	`tb_manager_user`.`ID`

Start at the hasWhere() handling for one-to-one and one-to-many relations and reproduce the SQL shown in the issue. No files or tests are named; done means the generated SQL uses the intended identifier naming consistently and the relevant relation-query behavior is covered by tests.