[Bug] CJK composition character dropped in secondary text inputs on submit

Bug Description
Title: Last CJK (Korean) character dropped on submit in secondary/modal text inputs (not the main composer)

Summary:
Composition-based CJK input (e.g. Korean) loses its final composing syllable when submitted
through secondary/modal text-input widgets — e.g. the AskUserQuestion "Other" free-text field
and message amend/edit. The main chat composer is NOT affected by the same IME.

Repro:

1. AskUserQuestion → pick "Other", type 가나다, press Enter. → got 가나 (reproduced 3/3)
2. Amend/edit a message ending in a Korean syllable, submit. → same drop.

Expected: 가나다
Actual: 가나 (final syllable 다 lost)

Notes:

• Main composer commits the same input correctly, so the bug is in the lightweight input

Environment Info

• Platform: linux
• Terminal: xterm-256color
• Version: 2.1.197
• Feedback ID: 5d75e0ee-434f-47e4-b951-874d96a54c47

Errors

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