title: PrimeFaces 6.2 commandButton title not working when commandbutton is disabled
body: <p>Environment: JSF 2.2.14, PrimeFaces 6.2</p>
  
  <p>I have my command button set up as below, when the button is disabled, title will show up (when hovered over) in PF6.1, but won't show in PF6.2</p>
  
  <pre><code>&lt;p:commandButton id="removeCmd" icon="fa fa-times" 
               actionListener="#{controller.remove()}" 
               update="@form"
               disabled="#{ontroller.isCommandDisabled()}"                                                          
               style="width: 20px; height:20px;margin-left: 5px;"
               title="#{controller.isCommandDisabled() ? 'Command disabled due to user privilege' : 'remove selected item'}"
               onstart="PF('bui').show(); PF('bar').show();" 
               oncomplete="PF('bui').hide(); PF('bar').hide();"
               styleClass="removeCmd"/&gt;
  </code></pre>
  
  <p>Title show up fine when button is not disabled.</p>
  
  <p>Does anyone encounter the same problem? I also tried to wrap my p:commandButton inside h:panelGrid and use p:tooltip with it, not working either.</p>
  
  <p><strong>UPDATE</strong>: issue created on github: <a href="https://github.com/primefaces/primefaces/issues/3656" rel="noreferrer">https://github.com/primefaces/primefaces/issues/3656</a></p>