Scenario:

After creating a List (Example named “Site URL List”) which has the URL of two different sites.  On the page, the qListView Web Part (Filter.dwp) had been configured with this list “Site URL List” and have configured “Service Request”  List as the Rolled up List.  In the Search field a "Status field" has been added which is a choice field and the values are different for the sites that have been added in the Site URL List.  

Result:

The qListView in the Search Filter shows only the Choice value of the first Site that is in the Site URL List.