removeChild not working #1038

p._resolveState = function() {
		var tl = this.timeline;
		this.currentFrame = tl.position;
		
		for (var n in this._managed) { this._managed[n] = 1; }

		var tweens = tl.tweens;
		for (var i=0, l=tweens.length; i<l; i++) {
			var tween = tweens[i],  target = tween.target;
			if (target === this || tween.passive) { continue; } // TODO: this assumes the actions tween from Animate has `this` as the target. There's likely a better approach.
			var offset = tween._stepPosition;

			if (target instanceof createjs.DisplayObject) {
				// motion tween.
				this._addManagedChild(target, offset);
			} else {
				// state tween.
				this._setState(target.state, offset);
			}
		}

		var kids = this.children;
		for (i=kids.length-1; i>=0; i--) {
			var id = kids[i].id;
			if (this._managed[id] === 1) {
				this.removeChildAt(i);
				delete(this._managed[id]);
			}
		}
	};

p._addManagedChild = function(child, offset) {
		if (child._off) { return; }
		this.addChildAt(child,0);

		if (child instanceof MovieClip) {
			child._synchOffset = offset;
			// TODO: this does not precisely match Adobe Flash/Animate, which loses track of the clip if it is renamed or removed from the timeline, which causes it to reset.
			// TODO: should also reset when MovieClip loops, though that will be a bit tricky to detect.
			if (child.mode === MovieClip.INDEPENDENT && child.autoReset && (!this._managed[child.id])) { child._reset(); }
		}
		this._managed[child.id] = 2;
	};