This sets the selection to the end of the first line, and hits the enter key.
Expected behavior: a div is created around the second line, and the cursor is placed at the start of the second line. See bug 61594.
| <span>
|   id="wrapper"
|   "First line"
| <div>
|   <span>
|     <#selection-caret>
|     <br>
|     "Second line"