Your app fixes the problem with missing search engines.
But i guess you only add the search services that are not already expected to be preinstalled.

Now those 4 .xml i attached in last post (google, yandex, yahoo...) are missing in the aurajoki update and if i install your app "only" the additional (DuckDuck, Startpage, etc) are shown.

How do i get the 4 missing xmls back to show in settings - apps - Browser - search engines, what to edit?