title: React-table custom sort only works in the ascending direction when using structured data and default sort with 'sorted' prop
body: <p>I'm using react-table with structured data and a default sort using the 'sorted' prop and my custom sort only sorts in the ascending direction. </p>
  
  <p>Please see a demo of this issue here: <a href="https://codesandbox.io/embed/react-table-default-sorting-vxe3e" rel="nofollow noreferrer">https://codesandbox.io/embed/react-table-default-sorting-vxe3e</a></p>
  
  <p>Note that this is different from the more basic demos as the data is <em>structured</em> such that multiple data points can be displayed in each cell. Here I put the 'firstName' and 'lastName' data points inside another object called 'name' so they could conceivably both be displayed in the same cell.</p>
  
  <p>How can I get my custom sort to work in both the ascending and descending directions</p>