Does min-height>max-height count as a basis for percentage heights?

So the case that I think is currently ambiguous is the following:

div.parent { max-height: 20px; min-height: 100px; }
div.child { height: 50%; }

Does a ['min-height','max-height'] range that constrains the height
to a single value (in this case, 100px) count as "specified
explicitly" even when 'height' is 'auto'?  In other words, does the
child in this case have 'auto' height or '50px' height?

-David

-- 
L. David Baron                                <URL: http://dbaron.org/ >
           Technical Lead, Layout & CSS, Mozilla Corporation