chore: clean stuff up

packages/entity/index.js

@@ -239,6 +239,7 @@ export class Entity extends decorate(Resource) {
     for (const eventName in listeners) {
       this.off(eventName, listeners[eventName]);
     }
+    instance._memoizedListeners = {};
     // Remove state.
     this.state = this.state.delete(type);
     // Remove instance.

packages/graphics/traits/pictured.trait.js

@@ -39,6 +39,7 @@ export class Pictured extends decorate(Trait) {
         sprite.image.destroy();
         sprite.destroy();
       }
+      this.sprites = undefined;
     }
   }
 

packages/timing/traits/animated.trait.js

@@ -45,11 +45,15 @@ class AnimatedBase extends Trait {
         const animationView = this.animationViews[key];
         animationView.destroy();
       }
+      this.animationViews = undefined;
     }
     for (const key in this.animations) {
       const animation = this.animations[key];
       animation.destroy();
     }
+    this.animations = {};
+    this.animationsPromise = undefined;
+    this._cachedAabbs = {};
   }
 
   hideAnimation(key) {