title: Refresh the material calendar
body: <p>A problem with refresh the mat-calendar <a href="https://i.stack.imgur.com/5gUuZ.png" rel="nofollow noreferrer">image</a>. an initial current month of the calendar was displayed, but if I select any date of next month then the mat-calendar will not update with the next month.</p>
  <p>expected result: select any date, mat calendar jump, or shows to the selected date</p>
  <p>I try <a href="https://stackoverflow.com/questions/56083815/how-to-refresh-mat-calendar-after-changing-the-background-of-highlighted-dates">How to refresh mat-calendar after changing the background of highlighted dates</a> also but still phasing with the above problem.</p>