mu4e-view-save-attachments not working anymore

[Jonas Damm]

Hi,
I recently switched from emacs 28 to 29
(GNU Emacs 29.0.90 (build 1,
x86_64-pc-linux-gnu, GTK+ Version 3.24.37, cairo version 1.16.0) of
2023-04-26).
I am using mu4e 1.8.14-1 on Debian Bookworm.

After upgrading to emacs 29 (native-compiling, pgtk)
mu4e-view-save-attachments stopped working. Executing it simply does
nothing. No message in the *Message*-buffer.

This is part of my init.el:

########################################

(setq gnus-inhibit-mime-unbuttonizing t)
    (use-package mu4e
      :ensure nil
      :config
      (setq smtpmail-servers-requiring-authorization "XXX")

      ;; use flyspell for emails
      (add-hook 'mu4e-compose-mode-hook
                (defun my-do-compose-stuff ()
                  (flyspell-mode)))

      ;; This is set to 't' to avoid mail syncing issues when using mbsync
      (setq mu4e-change-filenames-when-moving t)

      ;; Refresh mail using isync every 10 minutes
      (setq mu4e-update-interval (* 10 60))
      (setq mu4e-get-mail-command "mbsync -a")
      (setq mu4e-maildir "~/Mail")

      ;; Configure the function to use for sending mail
      (setq message-send-mail-function 'smtpmail-send-it)

      (setq mu4e-contexts
            (list
             (make-mu4e-context
              :name "XXX"
              :match-func
              (lambda (msg)
                (when msg
                  (string-prefix-p "/XXX" (mu4e-message-field msg :maildir))))
              :vars '((user-mail-address     .  "XXX")
                      (user-full-name        .  "Jonas Damm")
                      (smtpmail-smtp-server  .  "XXX")
                      (smtpmail-smtp-service .  465)
                      (smtpmail-stream-type  .  ssl)
                      (mu4e-sent-folder      .  "/XXX/Gesendet")
                      (mu4e-trash-folder     .  "/XXX/Papierkorb")
                      (mu4e-drafts-folder    .  "/XXX/Entw&APw-rfe")
                      (mu4e-spam-folder      .  "/XXX/Spam")
                      (mu4e-refile-folder    .  "/XXX/Archiv")))

             (make-mu4e-context
              :name "mailing Lists"
              :match-func
              (lambda (msg)
                (when msg
                  (string-prefix-p "/mailing" (mu4e-message-field msg 
:maildir))))
              :vars '((user-mail-address     .  "mailing@jonas-damm.de")
                      (user-full-name        .  "Jonas Damm")
                      (smtpmail-smtp-server  .  "XXX")
                      (smtpmail-smtp-service .  465)
                      (smtpmail-stream-type  .  ssl)
                      (mu4e-sent-folder      .  "/mailing/Gesendet")
                      (mu4e-trash-folder     .  "/mailing/Papierkorb")
                      (mu4e-drafts-folder    .  "/mailing/Entw&APw-rfe")
                      (mu4e-spam-folder      .  "/mailing/Spam")
                      (mu4e-refile-folder    .  "/mailing/Archiv")))

             (make-mu4e-context
              :name "emails_jd"
              :match-func
              (lambda (msg)
                (when msg
                  (string-prefix-p "/emails" (mu4e-message-field msg 
:maildir))))
              :vars '((user-mail-address     .  "XXX")
                      (user-full-name        .  "Jonas Damm")
                      (smtpmail-smtp-server  .  "XXX")
                      (smtpmail-smtp-service .  465)
                      (smtpmail-stream-type  .  ssl)
                      (mu4e-sent-folder      .  "/emails/Gesendet")
                      (mu4e-trash-folder     .  "/emails/Papierkorb")
                      (mu4e-drafts-folder    .  "/emails/Entw&APw-rfe")
                      (mu4e-spam-folder      .  "/emails/Spam")
                      (mu4e-refile-folder    .  "/emails/Archiv")))))

      (setq mu4e-maildir-shortcuts
            '((:maildir "/emails/INBOX"           :key ?i)
              (:maildir "/emails/Gesendet"        :key ?s)
              (:maildir "/emails/Papierkorb"      :key ?t)
              (:maildir "/emails/Entw&APw-rfe"        :key ?d)
              (:maildir "/emails/Spam"            :key ?m)
              (:maildir "/emails/Archiv"          :key ?a)))

      (setq mu4e-org-contacts-file  '("~/.personal/agenda/contacts.org"))
      (setq mu4e-compose-complete-only-personal nil)
      (add-to-list 'mu4e-headers-actions
                   '("org-contact-add" . mu4e-action-add-org-contact) t)
      (add-to-list 'mu4e-view-actions
                   '("org-contact-add" . mu4e-action-add-org-contact) t))


    (use-package mu4e-column-faces
      :after mu4e
      :config (mu4e-column-faces-mode))

    (require 'mu4e-contrib)

##################################

Thank you for any help!

Regards,
Jonas