JSON_TABLE in subquery not correctly marked as correlated

CREATE TEMPORARY TABLE t1 (t1_id int, t1_json text);

INSERT t1 VALUES (1, '[[10,20]]'), (2, '[[100,200]]'), (3, '[[1000,2000]]');

SELECT

	t1_id,

	t2_json,

	(SELECT SUM(x2) 

	FROM 

	  JSON_TABLE(t2_json, '$[*]' COLUMNS ( x2 int PATH '$' )) t3

	) t2_json_sum

FROM 

  t1

  CROSS JOIN 

  JSON_TABLE(t1_json, '$[*]' COLUMNS (t2_json json PATH '$' )) t2;

+-------+-------------+-------------+

| t1_id | t2_json     | t2_json_sum |

+-------+-------------+-------------+

|     1 | [10,20]     |          30 |

|     2 | [100,200]   |          30 |

|     3 | [1000,2000] |          30 |

+-------+-------------+-------------+