[Zope] Updating Zclass object titles

[Sherman Lambert (State Public Defenders Office)]

Hello all,

I am trying to edit an instance of a ZClass to update the title.  I am using
the dtml-
   <dtml-call "doc.propertysheets.Basic.manage_changeProperties(REQUEST)">
where
  this is in the submit form of a HTML form, with "title" as a field.  This
will update all
 properties except the title. I have l also tried directly updating it by
calling
   <dtml-call
"doc.propertysheets.Basic.manage_changeProperties(title=new_title)">
I have tried trapping exceptions, and neither of these calls raise one.  So
does anybody know
what's the deal?

Sherman