…with transitions to/from these states to the default JIRA workflow states (e.g. Open -> Ready, In Progress -> Ready, Screened -> Open, Screened -> Closed, etc). You can see the net effect here:
I take no credit nor blame for the entirely shoddy presentation of state diagram that JIRA generates — click the graph-esque icon on the right of that page to see the current version of it. (Admin access required; a screenshot of the current draft workflow:
I've tested this with a dummy issue (http://dev.clojure.org/jira/browse/IGNOREJIRAEXP-1) and I believe this now makes concrete most of workflow described and diagrammed on the wiki. Feel free to abuse that issue, create others, and see how workflow feels.
Things that don't map well at the moment: