Custom Rich Text Editor fields aren't save from in-line editing.

Trying to edit and save data in a custom "Note" field doesn't work from the inline editing form when the "Rich Text Editor" widget type is selected. Verified in civicrm 4.5.6 / drupal demo site 2015-02-09

Steps to reproduce:

1. Create a Custom Group for Contacts.
2. Create a Custom Field in the above group of type "Note" with the "Rich Text Editor" widget.
3. Load up the view page for a contact.
4. Press on the group from step 1 to load in inline editing form.
5. Enter some text in the field created in step 2.
6. Press the "Save" button in the inline editing form.

Expected outcome:

New custom note with rich text data is saved in the contact.

Actual outcome:

Nothing saved, no error message.