weird "disallowed reactions" system message when admin changes channel name

Description:

When an admin changes the name of a channel that it is not member of, a weird "disallowed reactions" system message appears. Nevertheless reactions are possible afterwords, and there is no option in the channel settings to change if reactions are allowed or not.

Steps to reproduce:

1. create a channel with a normal user
2. with an admin that is not member of that channel change the name of the channel with the worspace -> Administration -> #Rooms -> -> Room Information -> Name field.

Expected behavior:

Only the name is changed.

Actual behavior:

The name is changed, and another message appears in the channel: <adminname> disallowed reactions

Server Setup Information:

• Version of Rocket.Chat Server: 5.4.3
• Operating System: Ubuntu
• Deployment Method: snap
• Number of Running Instances: 1
• DB Replicaset Oplog: rs0
• NodeJS Version: v14.19.3
• MongoDB Version: 4.4.15 / wiredTiger (oplog Enabled)

Client Setup Information

• Desktop App or Browser Version: Google Chrome 110.0.5481.177
• Operating System: MacOS 12.6.1

Reproduce the issue through Administration → Rooms → Room Information → Name using an admin who is not a channel member. Trace the channel-name update and the system-message generation, then verify that renaming emits no unrelated “disallowed reactions” message while reactions remain available.