Bug? notmuch-emacs: "All tags" in notmuch-hello does not show all tags

[Tomi Ollila]

On Fri, Apr 20 2018, Gregor Zattler wrote:

> Dear notmuch-emacs developers,
>
> I use a certain tag which until now is only used with regards to
> one single message which is also tagged "spam".  This certain tag
> is among the output of notmuch search --output=tags '*'
>
> The part of notmuch-hello which is supposed to show "All tags"
> does not show this certain tag.  But it shows the certain tag with
> count = 1 if I remove the tag "spam" from this message.  The same
> happens if this message is tagged "deleted" instead of "spam".
>
>
> My ~/.notmuch-config contains:
>
> [search]
> exclude_tags=deleted;spam;
>
>
> The relevant section of my customzation.el contains:
>
>  '(notmuch-hello-sections
>    '(notmuch-hello-insert-search notmuch-hello-insert-saved-searches notmuch-hello-insert-recent-searches
>                                  (notmuch-hello-insert-tags-section "All tags" :initially-hidden t nil nil)))
>
>
> I can show the message in question with a search for
> (is:spam OR NOT is:spam OR is:deleted OR NOT is:deleted) AND is:certaintag
> notmuch-emacs then shows the single message and its tags.  Among
> those is the certain tag.
>
>
> I expected the certain tag to be shown in the notmuch-hello
> section "All tags" and consider it a bug that this is not the case.
>
> My guess is that somewhere in the code notmuch count is called
> without --exclude=false.

Hmm.

Notmuch emacs client runs `notmuch search --output=tags '*'` 
and then `notmuch count --batch` for those. If that 'certain'
tag was in output of notmuch search --output=tags '*' then I
don't see a reason it not showing up (unless it somehow were
included in notmuch-hello-hide-tags, but I cannot see how it
could be there). 

I personally don't have any tags excluded and nothing related
to *hello* in my ~/.emacs.d/custom.el -- and now that I 
experimented with [search] exclude_tags I just could not get
it to work in any related way (the tag I try to exclude is
seen in search --output=tags '*' and in notmuch count --batch
outputs...

    $ notmuch config get search.exclude_tags
    tbd
    $
    $ notmuch count --batch
    tag:tbd
    1
    $
    $ notmuch search --output=tags '*' | grep tbd
    tbd

Finally, I tried adding another tag to the one message
with this 'tbd' -- and that another tag is shown in
"All tags:" output.

That doesn't mean there could not be a bug there, just
that I cannot reproduce it...

Tomi

>
>
> Ciao; Gregor
> -- 
>  -... --- .-. . -.. ..--.. ...-.-