code: public void becomeCloneOf(ManagedObject clone)
      {
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.entry(tc, "becomeCloneOf", "Clone="+clone);
  
          PersistableRawData object = (PersistableRawData)clone;
  
          _data = object._data;
  
          if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled()) SibTr.exit(tc, "becomeCloneOf");
      }
docs: Replace the state of this object with the same object in some other state.
  Used for to restore the before image if a transaction rolls back.
  @param other is the object this object is to become a clone of.