Purpose of the unused argument passed to cell render functions

[kandji-austin]

When defining custom render functions on the cell property in a column definition, the callback is passed the props object for the cell as the first argument, but a second argument–an empty object–is always(?) passed as well.

I had to write some custom logic to get around this in a specific scenario. In order to avoid any issues from my workaround, I'm curious to know if this empty object is intentional (and undocumented), a bug, a relic that has yet to be addressed, or something else entirely.

[
  columnHelper.accessor((id) => id, {
    cell: (props, _unused) => {
      console.log( _unused) // {}
      return <></>;
    }
  },
]