cakephp/cakephp — pull request #961 by dereuromark (2012-11-16 11:20:09+00:00)
Title: 2.3 unify object collection

personally I liked attach/detach and attached() better - especially for behaviors.
but since the consensus was to deprecate attach/detach in favor of load/unload we should not keep attached() then either. it is confusing.

so we should deprecate it in favor of loaded().