Status: Closed (View Workflow)
There is a flaw in the DSL support for the gitlab-plugin which causes the trigger to only work for standard matching, not regex. This is the default for the gitlab-plugin, so it just appears to work if you're not trying to use the regex match. I have a patch already written for this and will be submitting a pull request momentarily.
Code changed in jenkins
User: Daniel Spilker
Merge remote-tracking branch 'isugimpy/
https://github.com/jenkinsci/job-dsl-plugin/pull/992 should be all set to merge.