I think there are two more issues on iOS 12. Feel free to split the topic if I should have made new topics again.
- Selecting a user from the list shown after typing @ has the same effect that selecting an emoji did. This one isn’t reproducible every time though. But it seems to happen often enough that it’s an issue.
- If I’m in the middle of composing a reply and I leave Safari (switching apps, screen locks), when I open Safari again the reply box is no longer covering the whole page, and the page itself has scrolled up. This one happens every time. I do this often enough that I’m also pretty sure this bug is relatively new.
EDIT:
Did the reply box used to exit full screen when selecting menu options like hide details and blur spoilers? I can’t remember on those, but selecting either of those is now doing that. Sometimes even just selecting the gear icon is causing this, but that’s not happening every time.