[Golist] Hydrotween bitmap filter question

[Chad Calhoun]

I'm running into problems trying to tween a bitmap filter on a 
movieclip.  The code I'm using is below.  I just updated to the latest 
versions of HydroTween and Go but it still isn't working.  Right now, it 
will tween the contrast in, but the reset doesn't tween at all.  It just 
jumps right to 0.  Same thing happens if I use contrast:HydroTween.RESET 
or color:-1. 

var seq1:HydroSequence = new HydroSequence(
                {target:pic_default_mc, contrast:2, duration:1, 
easing:Quadratic.easeInOut},
                {target:pic_default_mc, contrast:0, duration:1, 
easing:Quadratic.easeInOut}
);
seq1.start();

Is there something I'm doing wrong?