notifications-notify resets idle-time

[Peter Münster]

Hello,

How can I prevent `notifications-notify' from resetting the idle time?

In detail: when evaluating the following code, you'll see, that the idle
time does not increase:

--8<---------------cut here---------------start------------->8---
(require 'notifications)
(defun my-test ()
  (notifications-notify)
  (message (format "idle: %d" (if (current-idle-time)
                                  (cadr (current-idle-time))
                                0))))
(run-with-timer 5 5 'my-test)
--8<---------------cut here---------------end--------------->8---

TIA for any hints,
-- 
           Peter