rails/rails — pull request #14269 by arthurnn (2014-03-04 02:01:53+00:00)
Title: Cache key should be different when is Array.

`cache.fetch(['foo'])` and `cache.fetch('foo')` should generate
different cache keys as they are not equivalents.

[related #8615]
[related #8614]

review @guilleiguaran @spastorino @carlosantoniodasilva