I added a new custom checkbox field (single checkbox, labeled/option "Yes") to an existing JIRA installation. The field is called "Regression Tested?". I then created a query to find all items from the last release that don't have this field checked so we can do regression testing on it. My query is this:
Status=Closed and fixVersion="<version>" and "Regression Tested?" IS EMPTY
However, any JIRA item that was created before this field was created and added to the entry/edit screens are not returned with this query (they should be EMPTY by default?). Only newly created JIRAs and existing ones where I have edited the checkbox value on and off (and then saved) are being returned. I also tried using "Regression Tested?" is NULL and also "Regression Tested?" != "Yes". These didn't work either.
How can I get existing JIRA items to show up on this filter?