This tests list creation in an editable context but across non-editable content. Editable content should be pulled into the list and not crash.
| <ul>
|   <li>
|     "Editabl<#selection-anchor>e paragraph containing a "
|     <span>
|       style="background-color: lightgray;"
|       "non-editable"
|     " in the middle"
|     <br>
|   <li>
|     "Anothe<#selection-focus>r editable paragraph."
|     <br>