// from the client verify here.
			comp.Close()
			pw.CloseWithError(IncompleteBody{})
			return
		}
		// Close the stream.
		// If more than compMinIndexSize was written, generate index.
		if cn > compMinIndexSize {
			idx, err := comp.CloseIndex()
			idx = s2.RemoveIndexHeaders(idx)
			indexCh <- idx
			pw.CloseWithError(err)
			return
		}
		pw.CloseWithError(comp.Close())

					var changed bool
					clearField := true
					for i, sz := range version.ObjectV2.PartActualSizes {
						if len(version.ObjectV2.PartIndices) > i {
							// 8<<20 is current 'compMinIndexSize', but we detach it in case it should change in the future.
							if sz <= 8<<20 && len(version.ObjectV2.PartIndices[i]) > 0 {
								changed = true
								version.ObjectV2.PartIndices[i] = nil
							}