A patch for notmuch-search-filter follows, my change to
notmuch-search-filter-by-tag is not very useful since
notmuch-select-tag-with-completion does not allow a space to be
inserted.  I don't know how to get completion on multiple
space-separated terms.

On Tue, 01 Dec 2009 18:56:59 -0800, Carl Worth <cworth@cworth.org> wrote:
> PS. Hmm... "notmuch reply" needs to be more clever to avoid duplicate
> addresses in the To: and Cc: lines. See above.

Yes, uniquifying the headers actually requires some effort, unless I'm
missing something in the gmime API (which I've never looked at before).

Jed