Description

If you navigate through the Wikipedia app and, at the end of the experience (;)), you delete the history of visited pages, another one (or you) is still able to go through the last visited pages of the session (since the last time the app was killed). Compared with the missing "Exit" menu, the "delete history" function should delete the stack of opened pages since the last restart, too.

Steps to reproduce

1. Open the app
2. Navigate through some pages
3. Go to the history and delete it
4. Press "back"
5. Press "back" again (you can do it several times, depends on how many pages you opened before)

Expected results

The app should close

Actual results

You can navigate through all pages opened since the last time the app was opened.

Environments observed

App version: doesn't matter / 2.1.133-r
Android OS versions: 5.1
Device model: HTC One M9
Device language: german / english