bug#54079: 29.0.50; Method dispatching eratically fails

[Michael Heerdegen]

Michael Heerdegen <michael_heerdegen@web.de> writes:

> This short recipe gives me the same error in emacs -Q:
>
> (byte-compile-file
>  "/home/micha/software/emacs/lisp/emacs-lisp/cl-generic.el")
> (require 'gnus-search)

Small addition: it seems that all issues mentioned disappear when I
avoid any byte compilation in my session.  Compilation of `defstruct's
seems to be the culprit (hypothesis).

Would be good to fix this problem not too late.  I think it will
irritate or distract other people, too.

Michael.