Scriptrunner addedAfterSprintStart not working?

[Robbie.Edwards]

This query works.

issueFunction in inSprint("Our Agile Board", "Sprint 2")

However, this query does not.  

issueFunction in addedAfterSprintStart("Our Agile Board", "Sprint 2")

What gives?  Yes, there were issues added into Sprint 2 after it started.

[Robbie.Edwards · Accepted solution]

Reading is fundamental.  For future rtfm users, you have to enable JQL Keywords Sync for it to work.