INSERT queries with inline QUERY does not correctly identify parameters

[isuru89]

Consider below query.

$DSL.insert {
    TARGET (Film.alias("f"))
    DATA (
        "film_id": QUERY {
                        TARGET (Film.alias("f"))
                        WHERE {
                            EQ (f.film_id, PARAM("id"))
                        }
                    },
        "title": PARAM("title")
    )
    RETURN_KEYS()
}

There must be two parameters, but query generator finds only one parameter.