I noticed widgets that a bound in a WTemplate have their refresh()
method called twice when the WTemplate is refreshed.

The refresh code in WTemplate.C first refreshes all widgets that are
bound and rendered, then it calls WInteractWidget::refresh().  The
call to the base class refresh() refreshes all children of the current
widget (the template).  Since all widgets that are bound to a template
are also children, they get refreshed twice.

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