Issue Summary

Pages with indented Action Items (tasks) fail to convert to the new editor

Steps to Reproduce

1. Create a page (or template) using the old editor;
2. Insert an Action Item and some text;
3. Hit Enter and another tasks will be created; This time indent this action item by hitting TAB on your keyboard;
4. Save the page and go back into edit mode;
   
5. A message on the bottom on the page will be displayed, to convert this page to the new editor;
6. Click to Preview page in the new editor
   

Expected Results

• Page to be correctly converted to the new editor;

Actual Results

• Page fails to be converted due to indentation on action items
  

Workaround

• Removing the indentation from these items solves this conversion issue;