When will the output color be clipped to the maximal color range, after each filter or at last step?

When the attributes for color and tone adjustments are applied, the output color is different when each filter clips the value to the maximum color range or when this is done once after all filters have been applied. The specification has such clipping in the attributes draw:blue, draw:red, and draw:green. For the other adjustment attributes no rule is given. Apache OpenOffice clips only once, after applying all filters.