if srcObject == "" || srcBucket == "" {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL)
		return
	}

	// Sanitize the source object name similar to NewMultipart and PutObject API
	srcObject = trimLeadingSlash(srcObject)

	if vid != "" && vid != nullVersionID {
		_, err := uuid.Parse(vid)
		if err != nil {

        *   Using `functools.partial` with an invalid `tf.function` input
    *   `tf.function` now enforces input parameter names to be valid Python identifiers. Incompatible names are automatically sanitized similarly to existing SavedModel signature behavior.
    *   Parameterless `tf.function`s are assumed to have an empty `input_signature` instead of an undefined one even if the `input_signature` is unspecified.