Incorrect Bounding Box Result

Hi,

In this section of the specification
https://www.w3.org/TR/SVG2/coords.html#BoundingBoxes the result for group-1
is incorrect and should be {10,10,100,100}.

You might also want to change the example so that the bbox for rect-2 does
not contain the bbox of the use.

Personally, I also think that union should be expanded upon


   1. Otherwise, set box to be the *union *of box and the result of
   invoking the algorithm to compute a bounding box with child as the
   element and the same values for space, fill, stroke, markers and clipped as
   the corresponding algorithm input values.


Thanks



Tony Hallett