Comment by neilv

Yeah, that was alarming. Figuring out that it was innocuous took me 15-30 minutes of urgent, drop-everything-else work.

I should've thought to post a Debian bug report after that (especially since the Debian bugs database was one of the first things I checked). I'd reported the cause informally to some colleagues, and then must've gotten distracted with what I was trying to do before I saw the suspicious message.