QTransfrom::QTransform API documentation has incorrect information about member variable m_13 initialization

The documentation for QTransform::QTransform() states that the m_13 is initialized as one.

" Constructs an identity matrix.

All elements are set to zero except \c m11 and \c m22 (specifying
the scale) and \c m13 which are set to 1.
"

However, the implementation seems to initialize the m_13 value to zero:

QTransform::QTransform()
    : affine(true)
    , m_13(0), m_23(0), m_33(1)
    , m_type(TxNone)
    , m_dirty(TxNone)
{
}