protected void setFlags(short bits, DataInput in) throws IOException, ClassNotFoundException {
      if ((bits & HAS_PROCESSOR_ID) != 0) {
        processorId = in.readInt();
        ReplyProcessor21.setMessageRPId(processorId);
      }
    }
When an event is discarded because of an attempt to overwrite a more recent change we still
need to deliver that event to clients. Clients can then perform their own concurrency checks
on the event.
geode-core/src/main/java/org/apache/geode/internal/cache/DistributedCacheOperation.java