docs: public void restore(final List<DataSlice> dataSlices) throws PersistentDataEncodingException, SevereMessageStoreException
      {
          super.restore(dataSlices);
          long referredID = ((ReferenceMembership)_getMembership()).getReferencedID();
          _referredMembership = (ItemMembership) getOwningMessageStore().getMembership(referredID);
      }