[CX] "field-access-by-name: expects input type NULL or RECORD, but got INT64"

Query Issued:
SELECT tasks_points.task1 AS points FROM default_shadow AS test GROUP BY test.tasks_points.task1 ORDER BY points;

Result in cbas:
"field-access-by-name: expects input type NULL or RECORD, but got INT64"

Same query for n1ql gives correct result:
"results": [

]

Attaching dataset also.
Please use this dataset if needed for other cbas vs n1ql comparison bugs too.