master 3feef04: Fix displaying inline ical attachments with no charset

[Lars Ingebrigtsen]

branch: master
commit 3feef0428dad1e847d250d949248907ad31669dc
Author: Christophe Troestler <Christophe.Troestler@umons.ac.be>
Commit: Lars Ingebrigtsen <larsi@gnus.org>

    Fix displaying inline ical attachments with no charset
    
    * lisp/gnus/gnus-icalendar.el
    (gnus-icalendar-with-decoded-handle): Check whether there is a
    charset before using it (bug#40290).
    
    Copyright-paperwork-exempt: yes
---
 lisp/gnus/gnus-icalendar.el | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lisp/gnus/gnus-icalendar.el b/lisp/gnus/gnus-icalendar.el
index 29d3e30..ab121f1 100644
--- a/lisp/gnus/gnus-icalendar.el
+++ b/lisp/gnus/gnus-icalendar.el
@@ -757,7 +757,7 @@ These will be used to retrieve the RSVP information from 
ical events."
     `(let ((,charset (cdr (assoc 'charset (mm-handle-type ,handle)))))
        (with-temp-buffer
          (mm-insert-part ,handle)
-         (when (string= (downcase ,charset) "utf-8")
+         (when (and ,charset (string= (downcase ,charset) "utf-8"))
            (decode-coding-region (point-min) (point-max) 'utf-8))
          ,@body))))