Hi there,

I'm not sure if this is the appropiate mailing list for bugs regarding
notmuch.el (Notmuch in Emacs). Also, I'm not subscribed so please keep
me in CC!

I recently noticed that when saving drafts in notmuch I would loose all
the headers that are not normally visible on the compose
buffer. References, In-Reply-To and the likes.

By default, when when composing a Reply all those cool and nice headers
are narrowed out of the buffer. They show up on sending because
"message-send" will sort the headers breaking the restriction.

After digging, it seems that "(insert-buffer-substring buf)", in
"with-temporary-notmuch-message-buffer" which is used by
"notmuch-draft-save" is not seeing the buffer contents beyond the
buffer's current restriction.

Thus, "insert-buffer-substring buf" should be wrapped inside a
"without-restriction".

Doing this makes the saved draft keep all headers:

  (defun unrestrict-notmuch (orig-fn &rest args)
    (without-restriction
      (apply orig-fn args)))

  (advice-add #'notmuch-draft-postpone :around #'unrestrict-notmuch)

Note that when resuming the draft later on all headers will be visible,
still working out how to restore the narrow restriction there.

marc
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