[PATCH v2] emacs: stash bugfix

[Mark Walters <markwalters1009@gmail.com>]

Currently an attempt to stash a non-existent field (eg cc when not
present) throws an error. Catch this case and give the user a warning
message.
---

This fixes the comment and stashes an empty string in the
case there is nothing to stash (both suggested by Austin).


 emacs/notmuch-lib.el |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/emacs/notmuch-lib.el b/emacs/notmuch-lib.el
index 1d0ec17..5c44867 100644
--- a/emacs/notmuch-lib.el
+++ b/emacs/notmuch-lib.el
@@ -183,8 +183,14 @@ user-friendly queries."
 
 (defun notmuch-common-do-stash (text)
   "Common function to stash text in kill ring, and display in minibuffer."
-  (kill-new text)
-  (message "Stashed: %s" text))
+  (if text
+      (progn
+	(kill-new text)
+	(message "Stashed: %s" text))
+    ;; There is nothing to stash so stash an empty string so the user
+    ;; doesn't accidentally paste something else somewhere.
+    (kill-new "")
+    (message "Nothing to stash!")))
 
 ;;
 
-- 
1.7.9.1