Description:

Users can open invite links multiple times, even if they joined the room already. This should not happen, as invite links can have limited uses.

Steps to reproduce:

1. Go to any room.
2. Click on the users icon then invite users.
3. Copy the link and access it multiple times on the same account.
4. Go to Admin->Invites: Check your invite link, it should have counted every time you entered the room through it.

Expected behavior:

Count only new users to the room.

Actual behavior:

It counts every single attempt.

Server Setup Information:

• Version of Rocket.Chat Server: 3.0.0-develop
• Operating System: macOS Catalina 10.15.2
• Deployment Method: Development
• Number of Running Instances: 1
• DB Replicaset Oplog: True
• NodeJS Version: 13.5.0
• MongoDB Version: 4.0.6

Client Setup Information

• Desktop App or Browser Version: Chrome Version 80.0.3987.87 (Official Build) (64-bit)
• Operating System: macOS Catalina 10.15.2