Technical pages appear in the Notification Filters

Steps to reproduce:

1. As Admin make changes to the default AWM http://localhost:8080/xwiki/bin/view/AppWithinMinutes/ - Edit each app (Contributors, Movies) and add entries
2. Click on the bell > under Notifications > Settings

Actual results: There are many filters with Code pages, this makes the list really long by default.

NOTE - Wouldn't it be better for the user to choose himself if he wants this pages filtered by default? I see the list as over populated with choices I didn't personally make.