Streams in transaction don't consider entries modified by functional commands

When a functional command executes a modification on non-owner within transaction, and later in the same transaction we iterate through entry set (e.g. through cache.size()), the functional modification is ignored.
Regular commands store the modified value in context, but functional commands don't have the previous value on originator. Therefore, streams have to retrieve such modified entries into context and re-execute the modifications upon these.