Steps to reproduce:

1. Add a new page with the following wiki markup:

   | My List | {tasklist} |
   

2. Save the page
3. Add a new task to the tasklist
4. Upon a page refresh:
   • The table is broken; the tasklist is out of the table. See screenshot.jpg
   • The wiki markup of the resultant page shows that a newline is added before the tasklist:

     | My List | 
     {tasklist}
     ||Completed||Priority||Locked||CreatedDate||CompletedDate||Assignee||Name||
     |F|M|F|1231157823062|          |admin|taskA|
     {tasklist}
      |