if err != nil {
				err = msgp.WrapError(err, "ObjVersions")
				return
			}
			if zb0003 != uint32(dataUsageVersionLen) {
				err = msgp.ArrayError{Wanted: uint32(dataUsageVersionLen), Got: zb0003}
				return
			}
			for za0002 := range z.ObjVersions {
				z.ObjVersions[za0002], err = dc.ReadUint64()
				if err != nil {
					err = msgp.WrapError(err, "ObjVersions", za0002)
					return
				}
			}

	e.Versions += other.Versions
	e.DeleteMarkers += other.DeleteMarkers
	e.Size += other.Size

	for i, v := range other.ObjSizes[:] {
		e.ObjSizes[i] += v
	}

	for i, v := range other.ObjVersions[:] {
		e.ObjVersions[i] += v
	}

	if other.AllTierStats != nil && len(other.AllTierStats.Tiers) != 0 {
		if e.AllTierStats == nil {
			e.AllTierStats = newAllTierStats()
		}
		e.AllTierStats.merge(other.AllTierStats)