diff --git a/packages/lexical-playground/vite.config.ts b/packages/lexical-playground/vite.config.ts
index 98a5d6b35c0..5e6f3ff8758 100644
--- a/packages/lexical-playground/vite.config.ts
+++ b/packages/lexical-playground/vite.config.ts
@@ -11,6 +11,7 @@ import react from '@vitejs/plugin-react';
 import {defineConfig} from 'vite';
 import {replaceCodePlugin} from 'vite-plugin-replace';
 
+import viteCopyEsm from './viteCopyEsm';
 import moduleResolution from './viteModuleResolution';
 
 // https://vitejs.dev/config/
@@ -54,6 +55,7 @@ export default defineConfig({
       presets: ['@babel/preset-react'],
     }),
     react(),
+    viteCopyEsm(),
   ],
   resolve: {
     alias: moduleResolution,
diff --git a/packages/lexical-playground/vite.prod.config.ts b/packages/lexical-playground/vite.prod.config.ts
index 893a2d35037..c0276678a4a 100644
--- a/packages/lexical-playground/vite.prod.config.ts
+++ b/packages/lexical-playground/vite.prod.config.ts
@@ -11,6 +11,7 @@ import react from '@vitejs/plugin-react';
 import {defineConfig} from 'vite';
 import {replaceCodePlugin} from 'vite-plugin-replace';
 
+import viteCopyEsm from './viteCopyEsm';
 import moduleResolution from './viteModuleResolution';
 
 // https://vitejs.dev/config/
@@ -53,6 +54,7 @@ export default defineConfig({
       presets: ['@babel/preset-react'],
     }),
     react(),
+    viteCopyEsm(),
   ],
   resolve: {
     alias: moduleResolution,
diff --git a/packages/lexical-playground/viteCopyEsm.ts b/packages/lexical-playground/viteCopyEsm.ts
new file mode 100644
index 00000000000..9dabd1bcda5
--- /dev/null
+++ b/packages/lexical-playground/viteCopyEsm.ts
@@ -0,0 +1,41 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ */
+import * as fs from 'node:fs';
+import * as path from 'node:path';
+import copy from 'rollup-plugin-copy';
+
+function parseImportMapImportEntries() {
+  const m = /<script type="importmap">([\s\S]+?)<\/script>/g.exec(
+    fs.readFileSync('./esm/index.html', 'utf8'),
+  );
+  if (!m) {
+    throw new Error('Could not parse importmap from esm/index.html');
+  }
+  return Object.entries<string>(JSON.parse(m[1]).imports);
+}
+
+// Fork modules are only produced by the build script
+export default function viteCopyEsm() {
+  return copy({
+    hook: 'writeBundle',
+    targets: [
+      {dest: './build/esm/', src: './esm/*'},
+      {dest: './build/', src: ['./*.png', './*.ico']},
+      ...parseImportMapImportEntries().map(([mod, fn]) => ({
+        dest: './build/esm/dist/',
+        src: path.join(
+          `../${mod.replace(/^@/, '').replace(/\//g, '-')}`,
+          // Fork modules are only produced by build-release, which is not run
+          // in CI, so we don't need to worry about choosing dev or prod
+          fn,
+        ),
+      })),
+    ],
+    verbose: true,
+  });
+}
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;