an Important feature of the binding of chat to channel
After binding the public chat to a private channel, he loses some features of the private channel (which is virtually public).
User: โ switch to channel forward. โ Switch to channel on the link of the form t.me/c/.
Important feature: After unbinding the public chat of the channel or switch it to private, users who have switched to the channel for some time, then you can go to him.
This is due to the characteristics of the messenger. For the client to remember a hash of the private channel, so the user can navigate.