problem(s) with extractbb and extractbb.lua recently introduced

[Frank Mittelbach]

Hi Karl

> The LaTeX test suite is the only way I can see that it would ever get 
> tested to any meaningful degree. --thanks, karl.

I don't really think that is true. out of the several thousands of test 
in the LaTeX test suite only one actually hit on that problem. 
Basically, there aren't that many tests that involve graphics; all tests 
only focus on one particular aspect.

frank