Sean Whitton <spwhitton@spwhitton.name> writes: > async 1.9.3 is from buster. You have > /usr/share/emacs/site-lisp/elpa-async-1.9.7 on your system, right? > That's interesting, because that means that this is an old bug! See #1040690, which also appears to be this issue. So far the trigger condition appears to be a dist-upgrade (or full-upgrade). I wonder if the issue is on the emacs-el or dh-elpa side, or both? Cheers, Nicholas