title: primeng p-dropdown not firing change event
body: <p>I'm using primeng 5.2.4 and I'm trying this:</p>
  
  <pre><code>&lt;p-dropdown [options]="months" [(ngModel)]="selectedMonth"
     (change)="selectMonth()"&gt;&lt;/p-dropdown&gt;
  </code></pre>
  
  <p>The selectMonth method gets called when the page first loads but not on subsequent selections from the drop down list. If I change this to a click event it works (but I get one event when the dropdown is clicked and another when the value is chosen).</p>
  
  <p>Any ideas on what I might be doing wrong? I rolled back to 4.3.0 and see the same behavior.</p>
  
  <p>Thanks!</p>