code: private void checkNewlySharded(DBObject dbObj, Map<String, String> currScalarMap) {
          if (!m_tableDef.isSharded()) {
              return;
          }
          String shardingFieldName = m_tableDef.getShardingField().getName();
          if (!currScalarMap.containsKey(shardingFieldName)) {
              m_dbTran.addAllObjectsColumn(m_tableDef, dbObj.getObjectID(), m_tableDef.getShardNumber(dbObj));
          }
      }
docs: previously undetermined but is not being assigned to a shard.