Username error icon displays by default

[mponce1]

Steps to reproduce:

1. Open visual studio
2. Go to connect page
3. Click on Github -> Connect

Expected result: Username error icon only displays after user tabs away from field or enters an invalid value.
Actual result: Error displays immediately when it opens. Tabbing away from the field clears the icon.

[shana]

@grokys Could this be related to #285?

[mponce1]

Also happens on Enterprise if you're already signed into Github and you go to Manage Connections -> Connect to Github.

[grokys]

Ignore my previous comment - yes I think this was caused by #285.