title: Sorting TableView columns: a way to bypass an "unsorted" mode
body: <p>Here's another JavaFX question I was hoping to get an answer to.  Currently, when you sort a column in TableView, you get ascending order from the first click, descending from the second click, and on a third click it does nothing and the sorting arrow disappears.  I understand that the third sorting mode should return the column back to its previous, unsorted state.  I know that this mode has been added recently due to popular requests, but is there a way to completely bypass it?  That is, on the first click we sort in ascending order, on a second click we sort in descending order, and that's it, the third click will be ascending order again?  Is there an easy way to do this?</p>
  
  <p>Thank you</p>