SessionQuestionDock custom answer commits when pressing Enter to confirm IME composition

[hoshiumiarata]

Description

When using a CJK (Chinese/Japanese/Korean) IME in OpenCode, pressing Enter to confirm an IME candidate selection in the custom answer textarea inside SessionQuestionDock unintentionally commits the custom answer and exits editing mode.

The root cause is that the onKeyDown handler for the custom answer textarea in SessionQuestionDock did not check event.isComposing (or the legacy event.keyCode === 229 for Safari), so the Enter key fired during IME composition was treated as a commit action.

Plugins

No response

OpenCode version

1.4.3

Steps to reproduce

1. Open a session that shows a question request with a custom answer option
2. Click the custom answer option so the textarea opens
3. Enable a CJK input method
4. Start typing characters so IME composition begins
5. Press Enter to confirm the IME candidate

Screenshot and/or share link

before_fix.mov

Operating System

macOS

Terminal

No response

[github-actions]

This issue might be a duplicate of existing issues. Please check:

• [BUG] Question dock custom answer textarea submits on IME composition Enter #20850: Same bug — SessionQuestionDock custom answer textarea submits on IME composition Enter, same root cause (event.isComposing not checked), same steps to reproduce, and same fix approach described.