ActionScript 3.0 :: Replacing Same Object In Two Arrays?

I'm creating two different arrays and pushing a number of objects into each of them. Some objects get pushed into *both* arrays, and these objects often contain their own array of objects as well.Now, when I replace one of these nested objects (an child object in the array of one of the objects that exists in *both* of the top-level arrays) with a different object in *one* of the arrays, the change doesn't seem to reflect in the other array that this object is also in.

I've simplified it for testing, removing the nested array, and the same still seems to hold true: replacing one object in one array with an entirely new one seems to only replace it in one array. This sort of makes sense, but is there some way I can get around this? In testing I've figured out that changing *properties* of the same object in two arrays works fine and reflects in both, but not replacing an object entirely. Some sample code below.

Test code:

Code:
var arrayOne:Array = new Array();
var arrayTwo:Array = new Array();
for (var q:int=0; q<3; q++) {
var newObject:Object = new Object();

[code]...