[iPadOS] Message input text field does not drop down

[wmorgue]

Checklist

• [x] I am reporting an issue in existing functionality that does not work as intended
• [x] I've searched for existing GitHub issues

Description

When hiding the on-screen keyboard, the message input field is not dropped

Expected Behavior

See screen recording.

Actual Behavior

See screen recording.

Steps to Reproduce

1. Switch to the on-screen keyboard
2. Hide on-screen keyboard

Screenshots and Videos

Video too long for GitHub, so i uploaded it to youtube: https://youtu.be/ins8jlkGMcM

Environment

Device: iPad Pro M1 + Apple Magic Keyboard

iOS version: iPadOS 15.6.1

App version: 8.9.1 from App Store