doctrine/common — pull request #122 by dlsniper (2012-03-24 21:32:33+00:00)
Title: Improved performance of the caching system

This will improve the performance of the caching system by not doing too many round-trips to the caching service.

Also this will fix the problem where the caching key is searched in cache and if it's not found a default is assigned without it being saved to cache.

Hope this makes sense but for me it improved the caching hit rate by a lot since there are no more unnecessary/empty cache queries.