Is the form widget use-when attribute broken?

[Adrian Crum]

I'm having a strange problem with PartyForms.xml. I recently added a 
field for the LDAP integration (line 171) that uses the use-when 
attribute. The field appears on the screen even if LDAP hasn't been enabled.

I tried substituting use-when="false" and use-when="true == false" and 
yet the field still appears on the screen.

Is the use-when attribute broken or am I doing something wrong?

-Adrian