Save then cancel reverts changes to old values

[tnightingale]

Just set up create from latest master (installed via bower install create#master) and am noticing strange local storage behaviour.

To reproduce:

1. Start editing by clicking 'Edit'.
2. Make a change and save. (Success notification displays)
3. End editing session by clicking 'Cancel'. At this point content is reverted back to pre-editing session state.
4. Start editing by clicking 'Edit'. Changes in (2) are restored.
5. End editing session by clicking 'Cancel' Changes disappear again.
6. Repeat.

Possibly related to #182 and similar issue described in #43 (comment)

[lopis]

I'm suffering from this problem. We've been integrating Create in our project and only now noticed this now. Its behaviour is really unpredictable. We'll be looking into this, and eventually make a pull request.