JSON_EXTRACT comparison/casting issue

Using MySQL 5.7, it seems like calling JSON_EXTRACT(field, path+) for an integer from a json array isn't allowing me to compare with an integer.

Query:

SELECT *
FROM table
WHERE JSON_EXTRACT(json, "$[2]") >= ?;

The value in the json field is just a simple [1,2,3,4,5].

I try executing the query with both a string and integer value. Both result in now results.

If I insert the query into MySQL Workbench, it works fine. If I screw the prepared statement route and just put the integer in the query in place of the ?, it works fine.

They way around it so far is casting the JSON_EXTRACT value into UNSIGNED for the comparison to work:

SELECT *
FROM table
WHERE CAST(JSON_EXTRACT(json, "$[2]") AS UNSIGNED) >= ?;

No source file or test is named. Reproduce the MySQL 5.7 query with the supplied JSON array through a prepared statement, comparing a bound string and integer parameter with the literal query and the CAST workaround. Done means the parameterized JSON_EXTRACT comparison returns the expected rows without requiring an explicit CAST.