Environment

Windows build number: Microsoft Windows [Version 10.0.18363.836] (1909 rtm + patches)

Steps to reproduce

1. Start Korean IME
2. Turn it into IME entry mode, not English.
3. Type 'dks'

Expected behavior

We should see each piece get composed at a time. The D representation combined with the K one then combined with the S one. On enter, it should fully commit.

Actual behavior

We see nothing until the final commit is hit with the enter key.