Unexpected Results of IN expression With NATURAL RIGHT JOIN

[suyZhong]

Bug Report

1. Minimal reproduce step (Required)

CREATE TABLE t0(c0 INT);
CREATE TABLE t1(c0 BOOLEAN);
INSERT INTO t0 (c0) VALUES (0);

SELECT * FROM t1 NATURAL RIGHT JOIN t0; -- 0
SELECT (false IN (t1.c0, t0.c0)) FROM t1 NATURAL RIGHT JOIN t0; -- 1
SELECT * FROM t1 NATURAL RIGHT JOIN t0 WHERE (false IN (t1.c0, t0.c0));
-- Expected: 0
-- Actual: Empty set

2. What did you expect to see? (Required)

The third SELECT returns an empty set, which is surprising: If the result of second query is 1 (TRUE), the value of the IN expression should be 1, and thus the third query should return 0.

Not sure if the issue is related to #49108

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

Release Version: v7.6.0-alpha
Edition: Community
Git Commit Hash: 918df0ae50568ebc54bd6d89f2d9a49bc9b79b06
Git Branch: heads/refs/tags/v7.6.0-alpha
UTC Build Time: 2023-12-14 04:15:47
GoVersion: go1.21.5
Race Enabled: false
Check Table Before Drop: false
Store: unistore |

[suyZhong]

/label fuzz/sqlancer