[PATCH v2] emacs: show: refresh buffer did not remove overlays

[Mark Walters <markwalters1009@gmail.com>]

Previously refreshing the notmuch show buffer did not remove overlays
which meant that if the user refreshed a message with images the
images would remain and then the new text was added after.

One might have guessed that erase-buffer would have removed them but
it seems not.  Thus force the removal of overlays with remove-overlays.
---

This version fixes the problems that Austin mentioned in his review. I
have not investigated whether the erase-buffer here can be removed: it
looks like it could be but the worst that this does is call
erase-buffer twice (slightly wasteful but no harm).

Best wishes

Mark


 emacs/notmuch-show.el |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el
index 4d6c014..20f8997 100644
--- a/emacs/notmuch-show.el
+++ b/emacs/notmuch-show.el
@@ -1185,6 +1185,10 @@ reset based on the original query."
   (let ((inhibit-read-only t)
 	(state (unless reset-state
 		 (notmuch-show-capture-state))))
+    ;; erase-buffer does not seem to remove overlays, which can lead
+    ;; to weird effects such as remaining images, so remove them
+    ;; manually.
+    (remove-overlays)
     (erase-buffer)
     (notmuch-show-build-buffer)
     (if state
-- 
1.7.9.1