We found something in skuid (don't know feature or bug) a while ago. We have a model called OpenTasks based on custom object Task__c in a page include. The model has condition named practiceMember (filterable default off) with value set to result of subquery. If we wanted to activate the condition 'practiceMember', we had to pass practiceMember in query string for the include. However, this 'feature' stopped working in one of our dev orgs. Any idea?