Commented Unassigned: Hiding Fields doesn't seem to work [240]

I can't get Bugnet 1.6.315.0 to hide fields in the New Issue or Issue Details page, even though the 'Visible' checkbox is unchecked on the Project Admin Defaults page. This would be nice to simplify the page to just the fields required.
Comments: It seems to control the visibility on the new issue page but not the issue details page, at least for me.