When using the account option "Manually Approve New Users" the registration workflow for local users and SSO users is not consistent

Description:

When using the account option "Manually Approve New Users" the registration workflow for local users and SSO users is not consistent. A locally registered user will be redirected to the registration success page and will be informed by e-mail about his registration. In contrast, a user who registers via an authentication service does not receive either an email or an information page.

Server Setup Information:

• Version of Rocket.Chat Server: 0.59.3
• Operating System: linux
• Deployment Method(snap/docker/tar/etc): etc
• Number of Running Instances: 2
• DB Replicaset Oplog: Enabled
• Node Version: 4.5.0 - x64

Steps to Reproduce:

1. Enable "Manually Approve New Users"
2. Enable "Registration with Authentication Services"
3. Register with authentication services (--> no info about the required activation)
4. Register a local user (--> info is displayed and email is sent)

Expected behavior:

For both scenarios (local and authentication service) the user should receive an E-Mail and should get a direct information on the login screen

Actual behavior:

• Register with authentication services --> no info about the required activation
• Register a local user --> info is displayed and email is sent

No files, tests, or entry points are identified in the issue. Start by reproducing both local and authentication-service registration flows with “Manually Approve New Users” enabled, then trace their differing post-registration behavior. Done means both flows show the activation information on the login screen and send the user an email.