title: ng-select don't set value on reactive forms
body: <p>I have a ng-select and angular reactive forms. I configured it:</p>
  
  <pre><code>this.form1 = this.fb.group({
    test: [null, null]
  });
  
  
  this.items = [
      {
       code: 'A',
       description: 'TEST A'
      },
      {
       code: 'B',
       description: 'TEST B'
      }
  
   ]
  
     &lt;ng-select [items]="items" 
         (change)="onSelected($event)"
         bindLabel="description"
         class="selectbox"&gt; 
      &lt;/ng-select&gt;  
  
  
  onSelected(event){
     this.form1.controls['test'].setValue(event);
  
     // this.form1.controls['test'].value =  {code: 'A',description: 'TEST A'}
  }
  </code></pre>
  
  <p>Now the ng-select works. But if I set value on init i try to make</p>
  
  <pre><code>  this.form1.patchValue({
       test: {code: A}
    })
  </code></pre>
  
  <p>but don't worlks. I would like to set ui-select on init with this.form1.patchValue({
           test: {code: A}
        })</p>
  
  <p>any ideas? Thank's
  Marco</p>