bug#66979: Wrong number of arguments with completion-at-point

[Stefan Monnier]

> What has happened is that the advice macroexpand-advice in
> elisp--local-variables has been applied to macroexpand-1, and due to the
> typo there, never gets removed (now fixed with bug #65622).  This piece
> of advice is what suppresses the backtrace.

Ah, right, so we're actually not inside `elisp--local-variables` any
more, it's just that the advice was left by error.

> But I think I added the debug to that condition-case handler before
> spotting and correcting the typo in macroexpand[-1].  So it may well be
> that that debug could be removed without great damage.

Exactly.  Thanks,


        Stefan