Our ability to "edit around" content the HTML editing code does not yet handle very well.
For this test: Select and delete a list and some surrounding content.
The content in the red box must exactly match the content in the green box (except for the border color).
For this test: Only selected content should get deleted.
Surrounding content that is not selected should (obviously) not be affected.
There is a bug: the caret ends up in the wrong position, it should be in the empty paragraph.