Container scalling and filters

Ok i have been searching the internet for a bit, and maybe i don’t know what to look for but i know filters have stage scaling enable, not sure that is what i am dealing with but for some reason i can not scale a movieclip that contains a movieclip with a drop shadow filter without the drop shadow acting like the light source has changed, have tried copying the bitmapdata…anyone know how to “freeze” the drop shadow.

here is the demo, click on the blue minus button a few times to see what i am considering an undesired effect.

http://troyblank.com/temp/annoyingZoom.html

and here is the source:

http://troyblank.com/temp/annoyingZoom.zip