Component doesn't exist through entity.exists()

[DleanJeans]

Hi, I'm using Edge with HaxeFlixel. And I use FlxSprite as a IComponent.
This should reproduce the problem:

var sprite = new FlxSprite();
var entity = engine.create([sprite]);
trace(entity.exists(sprite)); // false

Why?
FlxSprite extends FlxObject and FlxObject extends FlxBasic, thus the key for FlxSprite is flixel.FlxBasic.
But exists() uses Type.getClass() on FlxSprite and it returns flixel.FlxSprite, of course. Hence false.
This is kinda a design problem, I guess.

In the mean time, I'll just replace this in the Entity class:

  function key(component : {}) {
    var t : Class<Dynamic> = Type.getClass(component),
        s = Type.getSuperClass(t);
    while(s != null && s != edge.IComponent) {
      t = s;
      s = Type.getSuperClass(t);
    }
    return Type.getClassName(t);
  }

with this:

  function key(component : {}) {
    return Type.getClassName(Type.getClass(component));
  }