Autosave not working in Views

Autosave appears to be broken in Views.

There are two related fields in the views editable field settings:

• Fields that trigger an ajax submit when they change (autosave)
• Event that will trigger an ajax submit for the fields above

Adding anything at all to the first field causes the update button to hide, but I can't get the field itself to update. I've tested with both "change" and "blur".