BUG IN DISCUSSION

This issue can be resolved by disabling the notification for the user when they answer their own question. To do this, you can add the following code to the DiscussionController:

public function store(Request $request)
{
    $discussion = Discussion::create([
        'title' => $request->title,
        'content' => $request->content,
        'user_id' => Auth::id(),
        'channel_id' => $request->channel_id
    ]);

    if (Auth::id() == $discussion->user_id) {
        $discussion->notify(new NewDiscussion($discussion, false));
    } else {
        $discussion->notify(new NewDiscussion($discussion));
    }

    return redirect()->route('discussions.show', $discussion->slug);
}

The notify() method takes a second argument which is a boolean value. By setting this to false, the notification will not be sent to the user who created the discussion.