[FOR REVIEW ONLY] ISPN-2757 ReplaceCommand in REPL mode cluster does not perform any modifications if the entry was not yet transfered during rehashing

ReplicationInterceptor needs to be smart an if the command is conditional but the affected value is not yet available locally because state transfer did not have the chance to fetch it yet then we should fetch it now.

JIRA: https://issues.jboss.org/browse/ISPN-2757 ,
         https://issues.jboss.org/browse/ISPN-2777