Shopify/identity_cache — pull request #184 by tjoyal (2014-11-24 15:26:37+00:00)
Title: Fix invalid parent cache invalidation

A relation embedded in 2 parents would only clear the cache in one of them.

Embedding twice an object would override `expire_parent_cache` and only the latest embedding parent would be cleared on child change.

This PR keeps these callback with unique names to prevent that clash.

@dylanahsmith What do you think?