[PATCH v7 6/8] emacs: Check that the parent buffer is alive before using it.

[David Edmondson]

---
 emacs/notmuch-show.el |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index f23aa8d..ec36767 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -1683,7 +1683,7 @@ added."
   (interactive "P")
   (let ((parent-buffer notmuch-show-parent-buffer))
     (notmuch-kill-this-buffer)
-    (when parent-buffer
+    (when (buffer-live-p parent-buffer)
       (switch-to-buffer parent-buffer)
       (notmuch-search-next-thread)
       (if show-next
-- 
1.7.8.3