Cannot choose a different username for a different name service URL
Issue generated from Tuleap's migration script. Originally submitted by: Maxim Cournoyer (mcournoyer)
GNU/Linux Ubuntu 16.04 with the Ring Gnome client
* Reproduce steps:
- Go to settings.
- Create a new account with a registered public username.
- In the "General" tab of the newly created account, change the name service URL to something else (it doesn't need to be an existing URL).
- Try changing the username.
* Expected result:
When the user edits the "name service URL" field, the UI should allow the user to change its username to a different one, and allow for a new username registration to happen on that different name service URL.
* Actual result:
The username cannot be changed: the user cannot choose (let alone register) a different username for a (potentially) different name service.