Issue Summary

When performing Japanese language conversion in linux OS, user meet some issue in the same time.

1. the use can select language conversion only one time. (it should be selected.)
2. cursor is stuck and if you click the mouse anywhere in the browse, characters are double-registered.

Steps to Reproduce

open Linux OS

1. OS > Language support > install 日本語(Japanese)
2. OS setting > Keyboard > add "Japanese(Mozc)"
3. open browser
4. create confluence page(new editor)
5. input "Japanese" and perform Japanese language conversion from the top of the line
6. If enter a word between some words, it works fine.
   20230614.mov

OS platform: Ubuntu 20.04, Ubuntu 22.04 LTS, Ubuntu 22.04.2 LTS, Ubuntu 20.04.6 LTS
Browser: Chrome, Firefox
IME: Japanese(IBus - Mozc)

Expected Results

cursor and language conversion works fine and only one characters are registered.

Actual Results

cursor is stuck and language conversion not work well and characters are double-registered.

Workaround

Currently there is no known workaround for this behavior. A workaround will be added here when available.
If the user use legacy editor, it works well.