title: Angular checkbox cannot be disabled
body: <pre><code>&lt;input type="checkbox" kendoCheckBox id="syncToCDS-checkbox" class="k-checkbox" name="SyncToCDS" formControlName="SyncToCDS" [readonly]="true"&gt; // never disabled
  &lt;input type="checkbox" kendoCheckBox id="syncToCDS-checkbox" class="k-checkbox" name="SyncToCDS" formControlName="SyncToCDS" [disabled]="true"&gt; // never disabled
  &lt;input type="checkbox" kendoCheckBox id="syncToCDS-checkbox" class="k-checkbox" name="SyncToCDS" formControlName="SyncToCDS" [attr.disabled]="false"&gt; //always disabled
  </code></pre>
  
  <p>When I inspect the [disabled] element, I see <code>ng-reflect-is-disabled="true"</code> on the input. I can't seem to get the input working properly, and would like to avoid this (which does actually work):</p>
  
  <pre><code>&lt;input type="checkbox" *ngIf="cannotUnsyncCDS" disabled kendoCheckBox id="syncToCDS-checkbox" class="k-checkbox" formControlName="SyncToCDS"&gt;
  &lt;input type="checkbox" *ngIf="!cannotUnsyncCDS" kendoCheckBox id="syncToCDS-checkbox" class="k-checkbox" formControlName="SyncToCDS"&gt;
  </code></pre>