When our client PART a group, they are not suppose to PART this group again.
HOW TO REPRODUCE
Start our server
Creates a client with HexChat
Join this client to #g1
Creates a client with nc
Authenticates the nc client
Join nc client to #g1
Execute the command
PART #g1 :bye
8. Repeat the PART command several time
9. Observes, the HexChat client receive the same msg several times...
![image](https://github.com/user-attachments/assets/3e715c92-d70c-4cce-aafa-67fd9862258a)
CONTEXT
When our client PART a group, they are not suppose to PART this group again.
HOW TO REPRODUCE