Currently `message-send-hook` functions are being called twice: In
notmuch send common when `notmuch-mua-send-hook` functions are
run (which by default includes `notmuch-mua-message-send-hook`) and in
`message-send` itself.

Because `message-send-hook` functions are run in `message-send` itself,
we don't need also need to run them before we delegate to `message-send`

Calling `notmuch-mua-message-send-hook` resulted in functions in
`message-send-hook` to be called twice. This causes bugs in
non-idempotent hook functions.
---
 emacs/notmuch-mua.el | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/emacs/notmuch-mua.el b/emacs/notmuch-mua.el
index dcddca76..03c7cc97 100644
--- a/emacs/notmuch-mua.el
+++ b/emacs/notmuch-mua.el
@@ -40,7 +40,7 @@
 
 ;;
 
-(defcustom notmuch-mua-send-hook '(notmuch-mua-message-send-hook)
+(defcustom notmuch-mua-send-hook nil
   "Hook run before sending messages."
   :type 'hook
   :group 'notmuch-send
@@ -601,11 +601,6 @@ unencrypted.  Really send? "))))
   (interactive)
   (message-kill-buffer))
 
-(defun notmuch-mua-message-send-hook ()
-  "The default function used for `notmuch-mua-send-hook', this
-simply runs the corresponding `message-mode' hook functions."
-  (run-hooks 'message-send-hook))
-
 ;;
 
 (define-mail-user-agent 'notmuch-user-agent
-- 
2.28.0
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