Currently the "delete the contents" algorithm deletes any old range it's given.  Every caller except delete/forwardDelete actually deletes the active range.  The problem with deleting non-active ranges is it doesn't update the selection correctly.  Example: calling delete on

  <ol><li>foo</li></ol>{}<br>

produces

  <ol><li>foo</li></ol>{}

in the current spec because the selection doesn't get moved.  delete/forwardDelete can maybe be changed to change the selection before deleting.  Or maybe there's some other fix that's better.

(This is a minor bug in the current spec, not an issue implementers have to worry about.)