BUG #19435: Error: "No relation entry for relid 2" Triggered by Complex Join with Self-Referencing Tables

The following bug has been logged on the website:

Bug reference: 19435
Logged by: Hang ammmkilo
Email address: ammmkilo(at)163(dot)com
PostgreSQL version: 18.3
Operating system: Ubuntu 22.04
Description:

A user encountered an error when attempting to execute a query involving
multiple RIGHT JOIN operations and a NATURAL JOIN on the same table
(pg_table_a). The error message returned was:
[XX000]ERROR: no relation entry for relid 2
This error seems to be an internal one and should not be triggered by users.
It might be a bug.
```sql
DROP TABLE IF EXISTS pg_table_a;

CREATE TABLE pg_table_a (
id INTEGER PRIMARY KEY,
col_bool BOOLEAN
);

INSERT INTO pg_table_a (id, col_bool)
VALUES (5, TRUE);

SELECT 1 AS c1
FROM (
pg_table_a AS tom0
RIGHT JOIN (
(pg_table_a AS tom1 NATURAL JOIN pg_table_a AS tom2)
RIGHT JOIN pg_table_a AS tom3
ON tom1.col_bool IS NOT NULL
)
ON tom1.col_bool
);
```