Partition table work with PointGet plan get a wrong result

[Defined2014]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

CREATE TABLE `t235e2b52` (
  `col_36` bigint DEFAULT NULL,
  `col_37` varchar(463) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL DEFAULT 'T',
  `col_39` bigint DEFAULT '272523819217945548',
  `col_40` timestamp DEFAULT '2023-09-11 00:00:00',
  `col_41` text COLLATE utf8mb4_unicode_ci NOT NULL,
  `col_42` bigint unsigned NOT NULL DEFAULT '5329417101757332864',
  PRIMARY KEY (`col_37`) /*T![clustered_index] CLUSTERED */
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci
PARTITION BY RANGE COLUMNS(`col_37`)
(PARTITION `p0` VALUES LESS THAN ('q&Gmxiqq8qDCv1Lc5w'),
 PARTITION `p1` VALUES LESS THAN (MAXVALUE));

insert into t235e2b52(col_37, col_41) values ('YOqtJ', '');
select * from t235e2b52 where col_37 <=> 'YOqtJ';

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

mysql> select * from t235e2b52 where col_37 <=> 'YOqtJ';
+--------+--------+--------------------+---------------------+--------+---------------------+
| col_36 | col_37 | col_39             | col_40              | col_41 | col_42              |
+--------+--------+--------------------+---------------------+--------+---------------------+
|   NULL | YOqtJ  | 272523819217945548 | 2023-09-11 00:00:00 |        | 5329417101757332864 |
+--------+--------+--------------------+---------------------+--------+---------------------+
1 row in set (0.00 sec)

3. What did you see instead (Required)

Before #61141, return empty result.

After #61141, report unexpected error like

mysql> select * from t235e2b52 where col_37 <=> 'YOqtJ';
ERROR 1105 (HY000): too many partitions matching for PointGetPlan

4. What is your TiDB version? (Required)

master