bug#20396: 24.5; incorrect subject in replies

[Nicolas Graner <nicolas.graner@u-psud.fr>]

Glenn Morris wrote:
> Nicolas Graner wrote:
>
>> When you reply to a message whose Subject starts with "Re: ", this is
>> normally stripped from the Subject before a new "Re: " is added in the
>> reply. But if the Subject is RFC2047-encoded, stripping does not
>> happen and you end up with "Re: Re: " in the reply.
>
> Thanks for the report. Does this fix it?
> (Apply patch, M-x emacs-lisp-byte-compile-and-load rmail.el)

Yes, it works. Thanks!

Nicolas


> --- a/lisp/mail/rmail.el
> +++ b/lisp/mail/rmail.el
> @@ -3830,7 +3830,8 @@ use \\[mail-yank-original] to yank the original message into it."
>  ;;;	  (setq cc resent-cc)))
>      ;; Add `Re: ' to subject if not there already.
>      (and (stringp subject)
> -	 (setq subject
> +	 (setq subject (rfc2047-decode-string subject)
> +	       subject
>  	       (concat rmail-reply-prefix
>  		       (if (let ((case-fold-search t))
>  			     (string-match rmail-reply-regexp subject))