Username becomes empty instead of reverting to the previous value if delete it in the drawer and close drawer [develop]

[annadanchenko]

Description

Type: Bug

Summary: User can delete username and close drawer. In the past, username was "reverted" to the previous value (in released 0.9.10 version). Currently, it's not reverted and there are 2 issues:

1. greyed out default name is shown in the drawer
   

2. empty username is shown in Profile screen and on Sign in screen.
   
   

Expected behavior

If username is deleted and drawer was closed then username should become the same as it was before deletion

Actual behavior

1. greyed out default name is shown in the drawer
2. empty username is shown in Profile screen and on Sign in screen.

Reproduction

from 00:33 https://app.testfairy.com/projects/4803622-status/builds/6490778/sessions/3/?accessToken=/9KQfn8rmcKgIEer9Cal6xxK3mc

• Open Status
• Open drawer
• tap on username
• delete username (by tapping on delete key on device keyboard). As a result, name is deleted and greyed out default username is shown
• close drawer: on android tap outside of the drawer, on ios swipe left
• open drawer again and check username shown
• open Profile screen (tap on 3 dots) and check username shown
• Switch users and check username on Sign in screen

Additional Information

• Status version:
  develop build 0.9.10-53-g38bf64ae+ and
  PR build bug/username-changed-to-default 0.9.10-58-g1951698e+
• Operating System:
  Real device Samsung Galaxy S6, Android 6.0.1
  Real device iPhone 6s, iOS 10.3.3