Comment 5 for bug 1626742

As Pat mentioned on the comment above the list of applications displayed on the Notification pannel is stored at GSettings under schema com.ubuntu.notifications.settings.applications and key applications. This list is populated by /usr/lib/ubuntu-push-client/click-hook-wrapper installed by ubuntu-push-client pkg. In fact this is a wrapper that will call /usr/lib/ubuntu-push-client/click-hook. This should run every time you reboot the device or after installing/deleting any pkg. This list is read by ubuntu-system-settings app and will populate the model of the specific pannel.

I am unable to reproduce this issue so far with krillin using rc-proposed (r435). Would probably need some more info about it to help finding out where the problem is.

First thing would be to make sure the GSettings list is empty and that running the wrapper manually will not update it. To check the list value just run on device as Pat suggested:

$ gsettings get com.ubuntu.notifications.settings.applications applications

Here is the output of mine for example: http://pastebin.ubuntu.com/23221260/ .