From 10996aea5ce614cfea39d32e8632fe35d0313cc6 Mon Sep 17 00:00:00 2001
From: matsuyama-k1 <111737064+matsuyama-k1@users.noreply.github.com>
Date: Sat, 30 Mar 2024 06:15:40 +0900
Subject: [PATCH] fix: Double input of text when composing at TextNode
 boundaries (#5762)

---
 packages/lexical/src/LexicalUtils.ts | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/packages/lexical/src/LexicalUtils.ts b/packages/lexical/src/LexicalUtils.ts
index ff3eff86643..5df7b99c954 100644
--- a/packages/lexical/src/LexicalUtils.ts
+++ b/packages/lexical/src/LexicalUtils.ts
@@ -713,13 +713,15 @@ export function $shouldInsertTextAfterOrBeforeTextNode(
   if (offset === 0) {
     return (
       !node.canInsertTextBefore() ||
-      !parent.canInsertTextBefore() ||
+      (!parent.canInsertTextBefore() && !node.isComposing()) ||
       isToken ||
       $previousSiblingDoesNotAcceptText(node)
     );
   } else if (offset === node.getTextContentSize()) {
     return (
-      !node.canInsertTextAfter() || !parent.canInsertTextAfter() || isToken
+      !node.canInsertTextAfter() ||
+      (!parent.canInsertTextAfter() && !node.isComposing()) ||
+      isToken
     );
   } else {
     return false;