Serializing a Ref creates an empty object in the cache

[imaustink]

When serializing a Ref and providing a MapType to cache with, the cached value is set to an empty object.

Here the value to serialize and a pointer to its cache is provided. Normally, an object would be serialized into a POJO and its properties would be applied to the cache reference. Since in this case, the serialized value is a string, the pointer to its cache is not updated.

To fix this, would it be acceptable to simply check for a string here and set the cache value?

[justinbmeyer]

ran into this on bitcentive, going to fix