Should liftListItem handle a selection over multiple lists?

Given the following doc:

• doc
  • ul
    • li
  • ul
    • li

With both lists selected, liftListItem doesn't work, since it uses blockRange to find a single NodeRange over a list covering the whole current selection. Since liftListItem is the primitive operation exported by prosemirror-schema-list, this limitation means the behavior has to be re-implemented by client-code if it should cover the case I described.