[Zope] arguments for myProduct_add?

in taz[...] how-to http://www.zope.org/Members/tazzzzz/addZClasses about adding ZClass instances Programmatically this code ought to be in the myProduct_add constructor: <dtml-if NoRedir> <dtml-else> <!--#if DestinationURL--> <!--#call "RESPONSE.redirect( DestinationURL+'/manage_workspace')"--> <!--#else--> <!--#call "RESPONSE.redirect( URL2+'/manage_workspace')"--> <!--#/if--> </dtml-if> I do not see the point of this: if NoRedir is true, nothing happens; if it is false, again nothing happens. Were the comments not to be used here?