title: MS Access Subform in a TabCtl On Load event not triggered
body: <p>In an Access 2013 project all of the subforms that are hosted within a TabCtl do not get their On Load (or related: Open, Current, Activate, etc) triggered.</p>
  
  <p>The form that hosts the TabCtl does get its On Load called.  Based on a button click it sets the SourceObject property of the Subform control in the TabCtl to the desired form.  The form is displayed, but On Load is never called.</p>
  
  <p>In the same project I do a similar operation (dynamically setting the SourceObject property of a Subform control) but without a  TabCtl involved, and it works as expected.</p>
  
  <p>Any ideas?</p>