nateware/redis-objects — pull request #68 by hkarthik (2012-08-11 15:43:07+00:00)
Title: Changing .score method on SortedSet to return nil for invalid members (Redis default functionality)

This patch prevents redis-objects from swallowing the redis return value for ZSET SCORE which currently casts nil to a float which returns 0.0 instead of nil.