fix: calculate correct content-range with partNumber query (#11992)

fixes #11989
fixes #11824

cmd/api-errors.go

@@ -82,6 +82,7 @@ const (
 	ErrInvalidBucketName
 	ErrInvalidDigest
 	ErrInvalidRange
+	ErrInvalidRangePartNumber
 	ErrInvalidCopyPartRange
 	ErrInvalidCopyPartRangeSource
 	ErrInvalidMaxKeys
@@ -505,6 +506,11 @@ var errorCodes = errorCodeMap{
 		Description:    "The requested range is not satisfiable",
 		HTTPStatusCode: http.StatusRequestedRangeNotSatisfiable,
 	},
+	ErrInvalidRangePartNumber: {
+		Code:           "InvalidRequest",
+		Description:    "Cannot specify both Range header and partNumber query parameter",
+		HTTPStatusCode: http.StatusBadRequest,
+	},
 	ErrMalformedXML: {
 		Code:           "MalformedXML",
 		Description:    "The XML you provided was not well-formed or did not validate against our published schema.",