mm-shr: Ignore coding-system `ascii'

* lisp/gnus/mm-decode.el (mm-shr): Ignore coding-system `ascii'.

1 files changed, 3 insertions, 2 deletions

diff --git a/lisp/gnus/mm-decode.el b/lisp/gnus/mm-decode.el
index 6683d68a318..becf6d140b1 100644
--- a/lisp/gnus/mm-decode.el
+++ b/lisp/gnus/mm-decode.el
@@ -1808,8 +1808,9 @@ text/\\(\\sw+\\)\\(?:;\\s-*charset=\\([^\t\n\r \"'>]+\\)\\)?[^>]*>" nil t)
                                                           nil t))
                        (string-match "\\`html\\'" (match-string 1))))
                 mail-parse-charset))
-      (when (or coding
-                (setq coding (mm-charset-to-coding-system charset nil t)))
+      (when (and (or coding
+                     (setq coding (mm-charset-to-coding-system charset nil t)))
+                 (not (eq coding 'ascii)))
         (insert (prog1
                     (decode-coding-string (buffer-string) coding)
                   (erase-buffer)