field, bts, err = msgp.ReadMapKeyZC(bts)
		if err != nil {
			err = msgp.WrapError(err)
			return
		}
		switch msgp.UnsafeString(field) {
		case "V2Obj":
			if msgp.IsNil(bts) {
				bts, err = msgp.ReadNilBytes(bts)
				if err != nil {
					return
				}
				z.ObjectV2 = nil
			} else {
				if z.ObjectV2 == nil {
					z.ObjectV2 = new(struct {
						DataDir [16]byte `msg:"DDir"`
					})
				}

				if err != nil {
					err = msgp.WrapError(err, "ObjVersions", za0002)
					return
				}
			}
		case "ats":
			if msgp.IsNil(bts) {
				bts, err = msgp.ReadNilBytes(bts)
				if err != nil {
					return
				}
				z.AllTierStats = nil
			} else {
				if z.AllTierStats == nil {
					z.AllTierStats = new(allTierStats)
				}

				z.Infos = (z.Infos)[:zb0002]
			} else {
				z.Infos = make([]*ObjectPartInfo, zb0002)
			}
			for za0001 := range z.Infos {
				if msgp.IsNil(bts) {
					bts, err = msgp.ReadNilBytes(bts)
					if err != nil {
						return
					}
					z.Infos[za0001] = nil
				} else {
					if z.Infos[za0001] == nil {
						z.Infos[za0001] = new(ObjectPartInfo)
					}