The user will become a ghost after leaving a group.

Environment

• Environment: all
• Last git commit: a3351d0
• Platform: any
• Browser: chrome

How to repro

• Step 1: Create a new group and leave the talking page opened.
• Step 2: Open a new web browser and then use another account to join the group just created.
• Step 3: Send some messages in the second user.
• Step 4: Leave the group.
• Step 5: Back to the first user, clear the browser cache in F12 and then refresh the page.
• Step 6: You can see the avatar of the second user is always loading and the nickname of it is always New User.

Expected situation

I expect that the message should be deleted or display the correct sender.

Other information

Nothing.

[Xiangrui2019]

Solution to this problem: Just check whether the sender of each message is in the group at a time.

Of course, if there are still some optimizations in this method, please point out them.

var messagesprocessed = [];

for (var message in messages) {
    for (var user in group.users) {
       if (message.senderid == user.id) {
            messagesprocessed.append(message);
       }
    }
}

[Anduin2017]

Ok. I will try to find a solution to fix this.