Notify > Previous track works only once.

[4ndrej]

Pragha shows notification when one track ends and the next one starts. There are track details and the "Previous track" and "Next track" buttons on notification message.
When I click the "Previous track", the Pragha jumps back in playlist and starts playing previous track.
This shows another notification with track details and the same buttons, but clicking on the buttons does nothing.

It would be great if I could click on the notification buttons to move even further back or forward.