bug#44307: 27.1; UTF-8 parts transferred as 8bit in multipart messages fail to decode

[Lars Ingebrigtsen]

Alexandre Duret-Lutz <adl@lrde.epita.fr> writes:

> After "make bootstrap", this seems to fix only the rendering of
> text/html utf-8 parts (I'm using w3m, if that matters).  However
> text/plain utf-8 parts are still garbled as they where before.

Yeah, it was a long shot.  What about the following patch?

diff --git a/lisp/gnus/nnmaildir.el b/lisp/gnus/nnmaildir.el
index e4fd976742..59926991b3 100644
--- a/lisp/gnus/nnmaildir.el
+++ b/lisp/gnus/nnmaildir.el
@@ -1351,7 +1351,8 @@ nnmaildir-request-article
        (throw 'return nil))
       (with-current-buffer (or to-buffer nntp-server-buffer)
        (erase-buffer)
-       (nnheader-insert-file-contents nnmaildir-article-file-name))
+       (let ((nnheader-file-coding-system nnmail-file-coding-system))
+         (nnheader-insert-file-contents nnmaildir-article-file-name)))
       (cons gname num-msgid))))
 
 (defun nnmaildir-request-post (&optional _server)


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