Editing top message of a thread changes how the top message is displayed

[svrnwnsch]

Description:

If you edit the first/top message of a thread this edited message will be no longer shown as a "main" message in the channel. Additionally switching to the the thread view will show the message twice.

Steps to reproduce:

1. Create message and reply to it in thread:
   

2. Edit original message:
   

3. Results with errors highlighted by red arrows:
   

Expected behavior:

• show the message in the main thread still as a big channel message
• do not show the message twice in the thread

Actual behavior:

See screenshots in steps to reproduce

Server Setup Information:

• Version of Rocket.Chat Server:
• Operating System:

Client Setup Information

• Desktop App or Browser Version: 2.4.0 desktop app