Unable to select Closing TAG(s) in the Closing Chat window

[didacroyo]

Description:

The configured closing TAG(s) are not visible in the LiveChat "Closing Chat" window and, since they are configured as mandatory, the chat cannot be closed (see screenshot).

Steps to reproduce:

1. Go to Omnichannel configuration
2. Select a department
3. Configure some closing TAG(s)
4. Confiugure the closing TAG(s) as required
5. As a LiveChat agent, close a conversation
6. The Closing Chat require the agent to TAG the conversation
7. Unable to select Closing TAG(s).

Expected behavior:

The agent can see/search the available Closing TAG(s) defined in the department configuration.

Actual behavior:

Unable to see / select the Closing TAG(s) defined in the department configuration.

Server Setup Information:

• Version of Rocket.Chat Server: v3.6.0 (never seen this feature working. In v3.5.4 also this bug was also there)
• Operating System: Ubuntu 18
• Deployment Method: docker
• Number of Running Instances: 1
• DB Replicaset Oplog: enabled
• NodeJS Version: v12.16.1
• MongoDB Version: 4.0.18

Client Setup Information

• Desktop App or Browser Version: both
• Operating System: MacOS Catalina

Additional context

Relevant logs:

none

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• Steps to reproduce
• Expected behavior
• Actual behavior
• Server Setup Information