Describe the bug

DDL

create table A(a1 bigint,a2 bigint)
ENGINE=OLAP
DISTRIBUTED BY HASH(a1) BUCKETS 1
PROPERTIES (
"replication_num" = "1"
);

insert into A values(1,1),
                    (2,2),
                    (3,3),
                    (4,4),
                    (5,5);

create table B(b1 bigint,b2 bigint)
ENGINE=OLAP
DISTRIBUTED BY HASH(b1) BUCKETS 1
PROPERTIES (
"replication_num" = "1"
);

insert into B values(2,1),
                    (3,2),
                    (4,3),
                    (5,4);

create table C(c1 bigint)
ENGINE=OLAP
DISTRIBUTED BY HASH(c1) BUCKETS 1
PROPERTIES (
"replication_num" = "1"
);

insert into C values(1),
                    (2),
                    (3),
                    (4);

Join query

select 
  t1.a1,
  t2.b2,
  sum(t1.a2) 
from A t1

left join (
  select b1,b2 from B
) t2

on t1.a1=t2.b1

join (
  select c1 from C
) t3

on t2.b2 = t3.c1

group by
t1.a1,
t2.b2

Execute the SQL multiple times

Result1

+------+------+----------------+
| a1   | b2   | sum(`t1`.`a2`) |
+------+------+----------------+
|    3 |    2 |              3 |
|    2 |    1 |              2 |
|    4 |    3 |              4 |
+------+------+----------------+

Result2

+------+------+----------------+
| a1   | b2   | sum(`t1`.`a2`) |
+------+------+----------------+
|    3 |    2 |              3 |
|    2 |    1 |              2 |
|    4 |    3 |              4 |
|    5 |    4 |              5 |
+------+------+----------------+

在doris runtime filter版本之前。

hash join node 会把_probe_expr_ctxs中的 predicate 组成InPredicate predicate 下推到exchange node节点。

InPredicate* in_pred = _pool->add(new InPredicate(node));
RETURN_IF_ERROR(in_pred->prepare(state, _probe_expr_ctxs[i]->root()->type()));
in_pred->add_child(Expr::copy(_pool, _probe_expr_ctxs[i]->root()));

InPredicate predicate 添加了一个child，由_probe_expr_ctxs[i]->root() copy过去的。
在我的case中copy的是一个 if(TupleIsNull(2), NULL, <slot 4> region_id)
其中 TupleIsNull(2) predicate 会连带其中的 _tuple_idxs内容也会拷贝过去。
在TupleIsNull prepare的时候没有将_tuple_idxs集合做清空处理，导致在调用TupleIsNullPredicate::get_boolean_val方法的时候，因_tuple_idxs内容不正确，从而导致TupleIsNullPredicate::get_boolean_val方法调用不准确。然后就出现了我遇到的case。

runtime filter版本之前 貌似都存在这个问题