Custom OAuth: Showing "Login with e-mail"

[mahal]

• Your Rocket.Chat Experimental app version: 1.19.0
• Your Rocket.Chat server version: 1.2.3
• Device (or Simulator) you're running with: EMUI 9.0.1.169, iOS 12.3.1 and iOS 12.4
• Rocket Chat: https://chat.milchjugend.ch
• OAuth-Provider: https://app.milchjugend.ch/ (where everybody can create an account)
• miniOrange OAuth Server for Wordpress
• basic authentication on Rocket Chat is disabled

Steps to reproduce:

• Update to 1.19.0 / Fresh Install 1.19.0
• Launch Rocket.Chat Experimental
• "Connect to a server"
• Connect to "https://chat.milchjugend.ch"

Actual result:

• Buttons "Login with e-mail" and "Create an account" on screen

Expected result:

• Buttons "Login with e-mail" and "Create an account" are not shown

Regression: On the native Android, iOS and MacOS App as well as with the webclient those two buttons are not shown.

Android Screenshot:

iPhone Screenshot:

[mahal]

@rasos thank you!