(rmail-clear-headers): Don't throw an error

if rmail-ignored-headers is nil.
(rmail-retry-failure): Bind rmail-ignored-headers and
rmail-displayed-headers to nil.

1 files changed, 7 insertions, 4 deletions

diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 64060f5144f..e3040e6a283 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -1834,9 +1834,10 @@ Otherwise, delete all header fields whose names match `rmail-ignored-headers'."
         (or ignored-headers (setq ignored-headers rmail-ignored-headers))
         (save-restriction
           (narrow-to-region (point-min) (point))
-          (while (progn
-                   (goto-char (point-min))
-                   (re-search-forward ignored-headers nil t))
+          (while (and ignored-headers
+                      (progn
+                        (goto-char (point-min))
+                        (re-search-forward ignored-headers nil t)))
             (beginning-of-line)
             (delete-region (point)
                            (if (re-search-forward "\n[^ \t]" nil t)
@@ -3193,7 +3194,9 @@ specifying headers which should not be copied into the new message."
           ;; Insert original text as initial text of new draft message.
           ;; Bind inhibit-read-only since the header delimiter
           ;; of the previous message was probably read-only.
-          (let ((inhibit-read-only t))
+          (let ((inhibit-read-only t)
+                rmail-displayed-headers
+                rmail-ignored-headers)
             (erase-buffer)
             (insert-buffer-substring rmail-this-buffer bounce-start bounce-end)
             (goto-char (point-min))