When using the MultiJob plugin with the CloudBees folder plugin, the MultiJobBuild.SubBuild class contains only the short job name. For example if we have 'MultiJobA' which runs job 'FolderFoo/JobB' as subtask, the info about the build does not contain 'FolderFoo/JobB' but only 'JobB' (the contained URL is fine). Thus, there is no easy way to understand which JobB was executed.