[mart-dev] specify dataset for a new filter

[Kiran Mukhyala]

I have added a new filter based on a newly added dimension table to my
mart.
The query generated is using the table name of the form content_type__dm
instead of the form dataset__content_type__dm and so throws the error:
table does not exist. 
How do I specify the dataset name with my new filter?

Thanks,

-Kiran