title: Primeng multi select is not detecting changing value
body: <p>*> >     >                 ***</p>
  
  <blockquote>
    <blockquote>
  <pre><code>&gt;     
  &gt;         1. my component :    
  &gt;                 onClose()
  &gt;                {  this.selectedWorkCenterData.forEach(data =&gt;{
  &gt;     
  &gt;     &gt;             this.selectedWorkCenterValue.push(data);
  &gt;     &gt;           }) } 
  &gt;               on Row Select the data  
  &gt;     
  &gt;     ***
  &gt;     
  &gt;     &gt; Blockquote
  &gt;     
  &gt;     ***on selection of rows from prime ng table to populate in multi select
  &gt;     
  &gt;     onRowSelect(event) {
  &gt;     &gt;         this.selectedWorkCenterValue = [];
  &gt;     &gt;         if (event.data["WORK_CENTER_ID"]) {
  &gt;     &gt;           this.selectedWorkCenterData.push(event.data);
  &gt;     &gt;           this.searchOnWorkCenters();
  &gt;     &gt;         }
  
  
   my html: &lt;p-multiSelect
  &gt;     &gt;             [options]="selectedWorkCenterData"
  &gt;     &gt;             maxSelectedLabels="10"
  &gt;     &gt;             [(ngModel)]="selectedWorkCenterValue"
  &gt;     &gt;             [style]="{ width: '100%' }"
  &gt;     &gt;             optionLabel="{{ lookup_config }}"
  &gt;     &gt;             defaultLabel="Choose Work Center"
  &gt;     &gt;             (onChange)="choosenWorkCenters()"
  &gt;     &gt;             #mySelect
  </code></pre>
      
      <p>Blockquote</p>
    </blockquote>
    
    <p></p>
    
    <blockquote>
  <pre><code>&gt;     
  </code></pre>
      
      <p>I had to do in my project:   on change of options from multi select , there is no updated values for dropdon . please help this issue.*</p>
    </blockquote>
  </blockquote>