Real name resolving in channel member selection dialog

[Gummikavalier]

Description:

Many other real name resolving issues have been and are being resolved, so I'll also report the specific issue with channel member selection dialog.

This issue is inconvenient on systems that get illegible provisioned usernames from SAML and Oauth endpoints and rely mainly on the real name to tell people apart.

Steps to reproduce:

1. Enable Use Real Name under Administrator -> Layout -> User Interface
2. Create a user with an illegible username (here 099fnd2ee) and add a real name to the user (here Test Account)
3. Invite the user to a channel

Expected behavior:

After selecting the name in the channel add user dialog, real name is shown in the box after the selection.

To be exact, for the security reasons (several users with the same name), both values could be shown during and after making the selection.

Actual behavior:

After selecting the real name from the list, it transforms into a username in the box with already selected users, making over viewing especially bigger selection impossible just before confirming the selections.

Selecting one user by their real name:

After the selection the real name transforms into a username:

The report after the user has been added also shows the username instead of the real name. User can find out whether the addition of correct person succeeded only by cross referencing the name and the account elsewhere (search for instance).

Server Setup Information:

• Version of Rocket.Chat Server: 3.12.3
• Operating System: CentOS7
• Deployment Method: tar
• Number of Running Instances: 20
• DB Replicaset Oplog: Yes
• NodeJS Version: 12.18.4
• MongoDB Version: 4.0

Client Setup Information

• Desktop App or Browser Version: Any web browser

[Gummikavalier]

Closing as fixed.