title: primefaces p:selectBooleanCheckbox default checked state
body: <p>I have a problem with this simple p:selectBooleanCheckbox component  :</p>
  
  <pre><code>&lt;p:selectBooleanCheckbox value="#{BackingBean.booleanFlag}"&gt; 
        &lt;p:ajax event="change" global="false" /&gt;
  &lt;/p:selectBooleanCheckbox&gt;
  </code></pre>
  
  <p>in the backing bean I have the default state of boolean variable booleanFlag = true inside @PostConstruct method. 
  Why the setter method is called with the 'false' value ????
  In this way seems impossible to have a default-checked checkbox...</p>
  
  <p>This behaviour happens also (and only) with other "boolean state component", like the new pf 5.0 component p:inputSwitch. (e.g. the pf extension tristate checkbox has  a string based state and it is working well)</p>
  
  <p>Where is my fault ?</p>