that works for failures, it doesn't take care of ordering issues
i.e. if you rename a task locally, and someone else renames it at the same time the sequence at the server will be different to the sequence arriving at the store's source (the local events will arrive faster)
I'm feeling a bit bitter about glimmer at the moment, was using jquery-ui-sortable before. But it doesn't work with glimmer so I'm currently bringing ember-sortable up to parity with it. Was not planned work...
yeah, I think making transformations immutable has made a big difference