diff --git a/demos/playground/src/__tests__/e2e/CopyAndPaste.spec.mjs b/demos/playground/src/__tests__/e2e/CopyAndPaste.spec.mjs
index 35ac097..61af85b 100644
--- a/demos/playground/src/__tests__/e2e/CopyAndPaste.spec.mjs
+++ b/demos/playground/src/__tests__/e2e/CopyAndPaste.spec.mjs
@@ -5,7 +5,7 @@
  * LICENSE file in the root directory of this source tree.
  *
  */
-import {expect} from '@playwright/test';
+import { expect } from '@playwright/test';
 
 import {
   extendToNextWord,
@@ -42,8 +42,8 @@ import {
 } from '../utils/index.mjs';
 
 test.describe('CopyAndPaste', () => {
-  test.beforeEach(({isCollab, page}) => initialize({isCollab, page}));
-  test('Basic copy + paste', async ({isRichText, page, browserName}) => {
+  test.beforeEach(({ isCollab, page }) => initialize({ isCollab, page }));
+  test('Basic copy + paste', async ({ isRichText, page, browserName }) => {
     await focusEditor(page);
 
     // Add paragraph
@@ -256,7 +256,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     `Copy and paste heading`,
-    async ({isPlainText, page, browserName}) => {
+    async ({ isPlainText, page, browserName }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -309,7 +309,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     `Copy and paste between sections`,
-    async ({isRichText, page, browserName}) => {
+    async ({ isRichText, page, browserName }) => {
       await focusEditor(page);
       await page.keyboard.type('Hello world #foobar test #foobar2 when #not');
 
@@ -789,7 +789,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy and paste of partial list items into an empty editor',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
 
@@ -869,7 +869,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy and paste of partial list items into the list',
-    async ({page, isPlainText, isCollab, browserName}) => {
+    async ({ page, isPlainText, isCollab, browserName }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1045,7 +1045,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy list items and paste back into list',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1112,7 +1112,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy list items and paste into list',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1298,7 +1298,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy and paste of list items and paste back into list on an existing item',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1363,9 +1363,171 @@ test.describe('CopyAndPaste', () => {
     },
   );
 
+  test('Copy list of a different type and paste into list on an existing item - should merge the lists.', async ({
+    page,
+    isPlainText,
+    isCollab,
+  }) => {
+    test.skip(isPlainText);
+
+    await focusEditor(page);
+
+    await page.keyboard.type('- one');
+    await page.keyboard.press('Enter');
+    await page.keyboard.type('two');
+    await page.keyboard.press('Tab');
+    await page.keyboard.press('Enter');
+    await page.keyboard.type('a');
+
+    await page.keyboard.press('Enter');
+    await page.keyboard.press('Enter');
+    await page.keyboard.press('Enter');
+    await page.keyboard.press('Enter');
+
+    await page.keyboard.type('1. four');
+    await page.keyboard.press('Enter');
+    await page.keyboard.type('five');
+    await page.keyboard.press('Tab');
+
+    await page.keyboard.press('ArrowUp');
+
+    await moveToLineBeginning(page);
+    await page.keyboard.down('Shift');
+    await page.keyboard.press('ArrowDown');
+    await page.keyboard.press('ArrowDown');
+    await page.keyboard.up('Shift');
+
+    await assertHTML(
+      page,
+      html`
+        <ul class="PlaygroundEditorTheme__ul">
+          <li
+            value="1"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+            dir="ltr">
+            <span data-lexical-text="true">one</span>
+          </li>
+          <li
+            value="2"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__nestedListItem">
+            <ul class="PlaygroundEditorTheme__ul">
+              <li
+                value="1"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">two</span>
+              </li>
+              <li
+                value="2"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">a</span>
+              </li>
+            </ul>
+          </li>
+        </ul>
+        <p class="PlaygroundEditorTheme__paragraph"><br /></p>
+        <ol class="PlaygroundEditorTheme__ol1">
+          <li
+            value="1"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+            dir="ltr">
+            <span data-lexical-text="true">four</span>
+          </li>
+          <li
+            value="2"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__nestedListItem">
+            <ol class="PlaygroundEditorTheme__ol2">
+              <li
+                value="1"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">five</span>
+              </li>
+            </ol>
+          </li>
+        </ol>
+      `,
+    );
+
+    const clipboard = await copyToClipboard(page);
+
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('ArrowLeft');
+    await page.keyboard.press('Backspace');
+
+    await pasteFromClipboard(page, clipboard);
+
+    await assertHTML(
+      page,
+      html`
+        <ul class="PlaygroundEditorTheme__ul">
+          <li
+            value="1"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+            dir="ltr">
+            <span data-lexical-text="true">one</span>
+          </li>
+          <li
+            value="2"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__nestedListItem">
+            <ul class="PlaygroundEditorTheme__ul">
+              <li
+                value="1"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">two</span>
+              </li>
+              <li
+                value="2"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">four</span>
+              </li>
+              <li
+                value="3"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__nestedListItem">
+                <ol class="PlaygroundEditorTheme__ol3">
+                  <li
+                    value="1"
+                    class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                    dir="ltr">
+                    <span data-lexical-text="true">five</span>
+                  </li>
+                </ol>
+              </li>
+            </ul>
+          </li>
+        </ul>
+        <p class="PlaygroundEditorTheme__paragraph"><br /></p>
+        <ol class="PlaygroundEditorTheme__ol1">
+          <li
+            value="1"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+            dir="ltr">
+            <span data-lexical-text="true">four</span>
+          </li>
+          <li
+            value="2"
+            class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__nestedListItem">
+            <ol class="PlaygroundEditorTheme__ol2">
+              <li
+                value="1"
+                class="PlaygroundEditorTheme__listItem PlaygroundEditorTheme__ltr"
+                dir="ltr">
+                <span data-lexical-text="true">five</span>
+              </li>
+            </ol>
+          </li>
+        </ol>
+      `,
+    );
+  });
+
   test.fixme(
     'Copy and paste two paragraphs into list on an existing item',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
 
@@ -1425,7 +1587,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy and paste two paragraphs at the end of a list',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1481,7 +1643,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy and paste an inline element into a leaf node',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
 
@@ -1541,7 +1703,7 @@ test.describe('CopyAndPaste', () => {
 
     await focusEditor(page);
 
-    const clipboard = {'text/html': 'Hello!'};
+    const clipboard = { 'text/html': 'Hello!' };
 
     await pasteFromClipboard(page, clipboard);
 
@@ -1563,12 +1725,12 @@ test.describe('CopyAndPaste', () => {
     });
   });
 
-  test('HTML Copy + paste a paragraph element', async ({page, isPlainText}) => {
+  test('HTML Copy + paste a paragraph element', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
 
-    const clipboard = {'text/html': '<p>Hello!<p>'};
+    const clipboard = { 'text/html': '<p>Hello!<p>' };
 
     await pasteFromClipboard(page, clipboard);
 
@@ -1592,7 +1754,7 @@ test.describe('CopyAndPaste', () => {
     });
   });
 
-  test('HTML Copy + paste an anchor element', async ({page, isPlainText}) => {
+  test('HTML Copy + paste an anchor element', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
@@ -1659,12 +1821,12 @@ test.describe('CopyAndPaste', () => {
     );
   });
 
-  test('HTML Copy + paste a list element', async ({page, isPlainText}) => {
+  test('HTML Copy + paste a list element', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
 
-    const clipboard = {'text/html': '<ul><li>Hello</li><li>world!</li></ul>'};
+    const clipboard = { 'text/html': '<ul><li>Hello</li><li>world!</li></ul>' };
 
     await pasteFromClipboard(page, clipboard);
 
@@ -1718,7 +1880,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste (Nested List - directly nested ul)',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1824,7 +1986,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste (Nested List - li with non-list content plus ul child)',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -1924,7 +2086,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste (Table - Google Docs)',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       test.fixme(
@@ -2003,7 +2165,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste (Table - Quip)',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2077,7 +2239,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste (Table - Google Sheets)',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2151,7 +2313,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Merge Grids on Copy + paste',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2163,8 +2325,8 @@ test.describe('CopyAndPaste', () => {
 
       await selectCellsFromTableCords(
         page,
-        {x: 0, y: 0},
-        {x: 3, y: 3},
+        { x: 0, y: 0 },
+        { x: 3, y: 3 },
         true,
         false,
       );
@@ -2390,8 +2552,8 @@ test.describe('CopyAndPaste', () => {
 
     // Explicitly checking inner text, since regular assertHTML will prettify it and strip all
     // extra newlines, which makes this test less acurate
-    await expect(paragraphs.nth(0)).toHaveText('Hello', {useInnerText: true});
-    await expect(paragraphs.nth(1)).toHaveText('World', {useInnerText: true});
+    await expect(paragraphs.nth(0)).toHaveText('Hello', { useInnerText: true });
+    await expect(paragraphs.nth(1)).toHaveText('World', { useInnerText: true });
     await expect(paragraphs.nth(2)).toHaveText('Hello   World   !', {
       useInnerText: true,
     });
@@ -2402,7 +2564,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste in front of or after a link',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
       await pasteFromClipboard(page, {
@@ -2438,7 +2600,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste link by selecting its (partial) content',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
       await pasteFromClipboard(page, {
@@ -2480,7 +2642,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Copy + paste multi-line plain text into rich text produces separate paragraphs',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
       await focusEditor(page);
       await page.keyboard.type('# Hello ');
@@ -2640,7 +2802,7 @@ test.describe('CopyAndPaste', () => {
     );
   });
 
-  test('HTML Copy + paste a checklist', async ({page, isPlainText}) => {
+  test('HTML Copy + paste a checklist', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
@@ -2716,7 +2878,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste a code block with BR',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2805,7 +2967,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste empty link #3193',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2853,7 +3015,7 @@ test.describe('CopyAndPaste', () => {
     },
   );
 
-  test.fixme('HTML Paste a link into text', async ({page, isPlainText}) => {
+  test.fixme('HTML Paste a link into text', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
@@ -2890,7 +3052,7 @@ test.describe('CopyAndPaste', () => {
     );
   });
 
-  test.fixme('HTML Copy + paste an image', async ({page, isPlainText}) => {
+  test.fixme('HTML Copy + paste an image', async ({ page, isPlainText }) => {
     test.skip(isPlainText);
 
     await focusEditor(page);
@@ -2932,7 +3094,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste + undo multiple image',
-    async ({page, isPlainText}) => {
+    async ({ page, isPlainText }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
@@ -2990,12 +3152,12 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'HTML Copy + paste a paragraph element between horizontal rules',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText);
 
       await focusEditor(page);
 
-      let clipboard = {'text/html': '<hr/><hr/>'};
+      let clipboard = { 'text/html': '<hr/><hr/>' };
 
       await pasteFromClipboard(page, clipboard);
       // Collab doesn't process the cursor correctly
@@ -3024,7 +3186,7 @@ test.describe('CopyAndPaste', () => {
       // sets focus between HRs
       await page.keyboard.press('ArrowRight');
 
-      clipboard = {'text/html': '<p>Text between HRs</p>'};
+      clipboard = { 'text/html': '<p>Text between HRs</p>' };
 
       await pasteFromClipboard(page, clipboard);
       await assertHTML(
@@ -3051,7 +3213,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Paste top level element in the middle of paragraph',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText || isCollab);
       await focusEditor(page);
       await page.keyboard.type('Hello world');
@@ -3081,7 +3243,7 @@ test.describe('CopyAndPaste', () => {
 
   test.fixme(
     'Paste top level element in the middle of list',
-    async ({page, isPlainText, isCollab}) => {
+    async ({ page, isPlainText, isCollab }) => {
       test.skip(isPlainText || isCollab);
       await focusEditor(page);
       // Add three list items