Fix bidi-paragraph-direction in Rmail view buffer

* lisp/mail/rmail.el (rmail-show-message-1): Reset
bidi-paragraph-direction to nil before formatting the message for
display.

1 files changed, 6 insertions, 1 deletions

diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 2e441ec16d3..70b0f232ce6 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -2797,7 +2797,12 @@ The current mail message becomes the message displayed."
           ;; rmail-header-style based on the binding in effect when
           ;; this function is called; `rmail-toggle-headers' can
           ;; inspect this value to determine how to toggle.
-          (set (make-local-variable 'rmail-header-style) header-style))
+          (set (make-local-variable 'rmail-header-style) header-style)
+          ;; In case viewing the previous message sets the paragraph
+          ;; direction non-nil, we reset it here to allow independent
+          ;; dynamic determination of paragraph direction in every
+          ;; message.
+          (setq bidi-paragraph-direction nil))
         (if (and rmail-enable-mime
                  rmail-show-mime-function
                  (re-search-forward "mime-version: 1.0" nil t))