[PATCH 1/1] emacs: fix notmuch-mua-reply point placement when signature involved

["Tomi.Ollila" <tomi.ollila@iki.fi>]

From: Tomi Ollila <tomi.ollila@iki.fi>

When composing a reply, notmuch-mua-reply attempts to  cite the
the original message by inserting it before the user signature, if
one is present. The existing method used to search the signature
separator backward from the end of the buffer and then move one
line up. In case of variable `message-signature-insert-empty-line'
being nil (and `message-signature-setup-hook' not intervening) this
caused point to go to the beginning of '--text follows this line--'
separator line, and citation was inserted there.
This change checks the value of `message-signature-insert-empty-line'
and doesn't move point if that is nil. Additional narrowing to
the body region ensures that point never goes to the separator line
(or beyond).

Original patch from "Geoffrey H. Ferrari", continued with iterations
from Jani and Mark.
---
 emacs/notmuch-mua.el | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el
index 2baae5f..0280c9f 100644
--- a/emacs/notmuch-mua.el
+++ b/emacs/notmuch-mua.el
@@ -192,10 +192,14 @@ list."
 
       ;; Insert the message body - but put it in front of the signature
       ;; if one is present
-      (goto-char (point-max))
-      (if (re-search-backward message-signature-separator nil t)
-	  (forward-line -1)
-	(goto-char (point-max)))
+      (save-restriction
+	(message-goto-body)
+	(narrow-to-region (point) (point-max))
+	(goto-char (point-max))
+	(if (re-search-backward message-signature-separator nil t)
+	    (if message-signature-insert-empty-line
+		(forward-line -1))
+	  (goto-char (point-max))))
 
       (let ((from (plist-get original-headers :From))
 	    (date (plist-get original-headers :Date))
-- 
1.8.0