Oops, @kinsamanka you're right about the maintainer. The debian/changelog entry should have the name of the person who merged the commit. Somehow I thought you were talking about the Maintainer in debian/control.
#795 allows MK not to choke when rsyslog isn't fast enough to keep up with log messages. Feel free to take it out. Those syslog_async settings need to be looked at more closely & something less hackish put in place.
Not sure whether that's the culprit now, though; the output used by the regression tests isn't piped through syslog_async, is it?