rich text notes fields don't display on contact sub types

If you create a cusotm group that extends a contact sub type and then create a notes field set to RichText, it will not display the field at all. The javascript console reports: "q is null"

The problem is currently visible here:

http://drupal.demo.civicrm.org/civicrm/contact/add?ct=Organization&cst=Sponsor&reset=1

I created a custom data group called "Sponsor Fields" and then created a notes field called "rich text"

On Firefox (Iceweasel) 10 on Debian Linux wheezy, the field doesn't display. The firebug error console reports: "q is null" in ckeditor.js line 119.

It seems to work with contacts that are not sub-contacts.