Incorrectly double-nested list item

[neilb]

The following markdown:

List items can wrap across multiple lines:

  * This is the first bullet,
    which is longer than one line.
  * This is the second bullet,
which is also on multiple lines.
* You don't have to indent the bullet
But there must be a space following the bullet marker.

By my reckoning this should be a single UL element with three list items. But Text::Markdown puts the third one inside another UL.