[Patch v4 6/8] emacs: show: use orig-tags for tag display

[Mark Walters]

This uses the previous patch to show the tag changes that have occured
in the show buffer since it was last loaded/refreshed.
---
 emacs/notmuch-show.el |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 5492be4..f6ca827 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -344,7 +344,7 @@ (defun notmuch-show-update-tags (tags)
     (if (re-search-forward "(\\([^()]*\\))$" (line-end-position) t)
 	(let ((inhibit-read-only t))
 	  (replace-match (concat "("
-				 (notmuch-tag-format-tags tags tags)
+				 (notmuch-tag-format-tags tags (notmuch-show-get-prop :orig-tags))
 				 ")"))))))
 
 (defun notmuch-clean-address (address)
@@ -1168,6 +1168,8 @@ (defun notmuch-show-build-buffer ()
 
       (jit-lock-register #'notmuch-show-buttonise-links)
 
+      (notmuch-show-mapc (lambda () (notmuch-show-set-prop :orig-tags (notmuch-show-get-tags))))
+
       ;; Set the header line to the subject of the first message.
       (setq header-line-format (notmuch-sanitize (notmuch-show-strip-re (notmuch-show-get-subject))))
 
-- 
1.7.10.4