Friends - Multiple contact screens appear, which leads to a crash

[Butteri]

In the Friends section, if the user taps the + button, then taps the Back icon on the screen or the phone, multiple contact screens will appear, and the app will crash after closing them.

Steps to Reproduce:

1. Select My Kids.
2. Select an existing entry from the Child List.
3. Tap Friends.
4. The Contact screen appears.
5. Either tap the Back icon on the screen or the back button on the phone.

Expected Result:
The user is returned to the Friends screen.

Actual Result:
Another Contact screen appears (up to 2-4 of them total). If the user continues to press the back button, the app will crash.

Tested on Samsung Galaxy S8 version 8.0.0.

[rockfordlhotka]

Maybe related to #288

Definitely related to #14

[brunck]

This specific problem doesn't seem to be reproducible (on iOS), but it still isn't working.

You can bring up the Contact picker, but selecting a contact doesn't do anything; nothing is added to the Friends screen. This is also visible on the Basic Info screen, where you can select a Contact but nothing changes no matter what Contact you select.

Even worse, if you do this on the Friends screen, but you Cancel out of the picker instead of picking one, then navigate back, the second child in the Childprofiilelist (if there is one) is DELETED completely!
Navigating back to the landing page and then back to My Kids doesn't restore the 2nd in the list as it does when picking photos; see #332 which is similar but doesn't delete the 2nd item.