if m.parity == otherM.parity && m.data == otherM.data {
						for k, v := range m.parityData {
							if otherM.parityData[k] == nil {
								continue
							}
							for i, data := range v {
								if data != nil || otherM.parityData[k][i] == nil {
									continue
								}
								m.parityData[k][i] = otherM.parityData[k][i]
							}
						}
					}

					var ok int