The "workflow-api" plugin which contains the "duplicate" fix has been fixed since 2.5; "2.5 (Oct 19, 2016) JENKINS-34488 Various errors when trying to run assert statements, and under certain other conditions as well." We can confirm that as of version 2.8, Jenkins LTS today, this issue still occurs. I will try to re-open this issue? Sorry if that is premature. |