Toolbar Options doesn't rerender after MUI version 2.0.0

Back in version 2.0.0, I was able to pass through a prop and have it rerender an element in the toolbar [for example](https://codesandbox.io/s/mui-datatable-issue-i6drf) I have a refresh button with a spinner that shows it's refreshing when you click it. If you change the version here to anything later than 2.0.0, the functionality breaks.

I feel kind of awkward that this issue is so short, but all the required info can be found in the codesandbox.

Basically, I had a button that would conditionally display a spinner inside of the toolbar and now the toolbar doesn't re-render the button when updating the prop.