[O] Superagenda selector ":priority" matches only deadlines

[Sven Bretfeld]

Hi

This can't be a feature. The org-super-agenda selector ":priority"
matches no entries except those that have a deadline.

Example:

 (setq org-agenda-custom-commands
       (quote (
         (" " "Super Agenda View" (
           (agenda "" ((org-agenda-span 'day)
             (org-super-agenda-groups
                '((:name "Today "
                   :time-grid t
                   :date today
                   :scheduled today
                   :order 1)
                  (:name "Important "
                   :priority "A"
                   :order 2)
                   )))) <---- more to follow

The 2nd block should match every item with "A" priority. Instead, of the
group:

* TODO [#A] Test 1
  DEADLINE: <2018-07-23 Mo>
* TODO [#A] Test 2
  SCHEDULED: <2018-07-20 Fr>
* TODO [#A] Test 3
* TODO [#B] Test 4
  DEADLINE: <2018-07-21 Sa>

... only the first item (Test 1) is displayed.

Bug or weird feature? Todos having top priority without having a
deadline is a common use case, right?

Sven