The repository plugin currently exposes a repository for jobs contained in folders of the form:

http://jenkins/job/1s/job/<<foldername>>/job/<<jobname>>/<buildnumber>/maven-repository/repositoryChain/

Downstream projects currently trying to use this are directed to an invalid url for the job which does not include the folder. It doesn't appear to be possible to add the folder to the plugin/repository version of the URL: http://jenkins/plugin/repository/project/<<projectName>>/Build/5/repositoryChain