I'm bumping this in the hope that someone can give some assistance on getting more debug logging out of Jenkins. I've tried adding some logging via the "Manage Jenkins"/"System Log"/"Add new log recorder" using loggers for hudson.scm.SubversionSCM, hudson.scm, hudson.tasks.Fingerprinter, and hudson.tasks.Mailer - all set to "all" and the result is no logging.
I've tried restarting Jenkins, still no logging. Any ideas as to how to get some sensible logging out of Jenkins ?