return err
		}
		return r.copyWithMultipartfromSource(ctx, api, core, srcObjInfo, opts, partsCount)
	}
	gopts := minio.GetObjectOptions{
		VersionID: srcObjInfo.VersionID,
	}
	if err := gopts.SetMatchETag(srcObjInfo.ETag); err != nil {
		return err
	}
	rd, objInfo, _, err := core.GetObject(ctx, srcBucket, srcObject, gopts)
	if err != nil {
		return ErrorRespToObjectError(err, srcBucket, srcObject, srcObjInfo.VersionID)

	if rs != nil {
		h, err := rs.ToHeader()
		if err != nil {
			return nil, proxy, err
		}
		gopts.Set(xhttp.Range, h)
	}
	// Make sure to match ETag when proxying.
	if err = gopts.SetMatchETag(oi.ETag); err != nil {
		return nil, proxy, err
	}
	c := minio.Core{Client: tgt.Client}
	obj, _, h, err := c.GetObject(ctx, tgt.Bucket, object, gopts)
	if err != nil {
		return nil, proxy, err
	}