From 86b6c5fbfc5f57c906f695bd98228ff9b4980018 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E3=83=9E=E3=82=B5=E3=83=8F=E3=83=AB=E9=9B=BB=E6=A9=9F?=
 <highvoltagescientist@gmail.com>
Date: Wed, 28 Oct 2026 18:40:40 +0900
Subject: [PATCH] fix(frontend): ignore Enter during IME composition (#13122)

Co-authored-by: TSUBASA <246341638+highvoltagescientist-arch@users.noreply.github.com>
---
 src/frontend/src/components/forms/fields/TextField.tsx | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/frontend/src/components/forms/fields/TextField.tsx b/src/frontend/src/components/forms/fields/TextField.tsx
index d1b887cba9..ab6f952f04 100644
--- a/src/frontend/src/components/forms/fields/TextField.tsx
+++ b/src/frontend/src/components/forms/fields/TextField.tsx
@@ -76,7 +76,14 @@ function TextField({
           // Bypass debounce on enter key
           onTextChange(event.currentTarget.value);
         }
-        onKeyDown(event.code);
+
+        // Do not submit the form when Enter is used to confirm IME input.
+        // Some browsers report keyCode 229 even when isComposing is false.
+        const isComposing =
+          event.nativeEvent.isComposing || event.nativeEvent.keyCode === 229;
+        if (!isComposing) {
+          onKeyDown(event.code);
+        }
       }}
       rightSection={
         placeholderAutofill && (