Union from views should have that view mapped type

[ursusursus]

If I have a various queries from a view; they always have the same type of data

However if I have a join

threadMessages:
SELECT *
FROM some_view
WHERE remoteId=:remoteId AND accountId=:accountId

UNION

SELECT *
FROM some_view
WHERE c_messageRemoteId=:remoteId AND accountId=:accountId;

return type for this is List; and should be List<some_view>