title: Datepicker not setting input in TextFormField
body: <p>See the issue at <a href="https://dartpad.dev/c8fc4e640c882616c372653c92362b17" rel="nofollow noreferrer">https://dartpad.dev/c8fc4e640c882616c372653c92362b17</a></p>
  <p>The Datepicker is opening and setting the date in the state, but the selected date is not visible in the TextFormField. Any solution?</p>