ion-tabs navigation behaves unexpectedly when using Android back button

[rjv]

Short description of the problem:

Navigating between tabs with the ion-tabs component adds to the overall navigation history. Pressing the Android system back button navigates (in reverse) the entire history of how the user traversed through the tabs.

What behavior are you expecting?

If viewing the root page of a tab, I would expect the app to exit when pressing the Android back button.

Steps to reproduce:

1. Assume an Android app; root page has <ion-tabs> that contains 4 tabs and starts with tab1 (or you could use the tabs starter project).
2. Tap on tab2, then on tab3, and finally on tab4.
3. Press the Android system back button; observe that you are taken to tab3.
4. Press the back button again; observe that you are taken to tab2.

Other information:

Original forum post: https://forum.ionicframework.com/t/switching-between-ion-tabs-on-android-keeps-a-nav-history-when-pressing-the-platforms-back-button/62222/1

Which Ionic Version?

2.0.0-beta.11

Run ionic info from terminal/cmd prompt:

Cordova CLI: 6.3.0
Gulp version:  CLI version 1.2.2
Gulp local:   Local version 3.9.1
Ionic Framework Version: 2.0.0-beta.11
Ionic CLI Version: 2.0.0-beta.36
Ionic App Lib Version: 2.0.0-beta.19
OS:
Node Version: v6.3.1

[jgw96]

Hello, thanks for opening an issue with us! I am going to be closing this issue as a duplicate of #7611. Thanks for using Ionic!