setHeadGetRespHeaders(w, r.Form)

	// Successful response.
	if rs != nil || opts.PartNumber > 0 {
		w.WriteHeader(http.StatusPartialContent)
	} else {
		w.WriteHeader(http.StatusOK)
	}

	// Notify object accessed via a HEAD request.
	sendEvent(eventArgs{
		EventName:    event.ObjectAccessedHead,
		BucketName:   bucket,
		Object:       objInfo,
		ReqParams:    extractReqParams(r),

			Event:     "scanner:manyversions",
			APIName:   "CompleteMultipartUpload",
			Bucket:    objInfo.Bucket,
			Object:    objInfo.Name,
			VersionID: objInfo.VersionID,
			Status:    http.StatusText(http.StatusOK),
		})
	}

	// Remove the transitioned object whose object version is being overwritten.
	if !globalTierConfigMgr.Empty() {
		// Schedule object for immediate transition if eligible.