Subject: bug#67587: 30.0.50; function defined by cl-defmethod returns nil instead of fixed str

From: Eli Zaretskii <[email-masked]>
Date: Sat, 09 Dec 2023 10:34:20 +0200

> Date: Sat, 02 Dec 2023 19:37:15 +0800
> From:  Vonfry via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <[email-masked]>
> 
> 
>     (cl-defmethod foo ((_e (eql foo))) "docstr" "result str")
>     (foo 'foo)
> 
>     In Emacs 29, it returns "result str", but nil in Emacs 30.

Adding Stefan, in case he has some comments or suggestions.