rc8

I have a many-to-many relationship between Exhibitor and Artwork.

class Exhibitor
...
references_and_referenced_in_many :artworks
end

• create(hash) where hash contains artworks = [ array of ids ] -> success
• update_attributes(hash) where hash contains artworks = [ array of ids, with several new ids ] -> success
• update_attributes(hash) where hash contains artworks = [ array of ids, with removed ids ] -> fail

By fail I mean nothing is removed.

http://groups.google.com/group/mongoid/browse_thread/thread/0b685e1895bb64a6