I use the iOS app.
I have 4 forums in it but mostly use the top 2.
- Open app
- See there are new/unread notifications for all forum list items
- Tap first/top forum list item to visit it
- Read until no new/unread and go back to hub list using the down arrow toolbar icon
- Look at the second forum list item
- notifications should still be on second forum list item
- notifications disappear from first forum list item
- (notifications are at the forum when you visit it)
- third and fourth forum list items are unaffected
- visit the second forum before the first
- when you return to the hub list notifications will still be on first forum list item