Game Objects would not remove themselves from the Scene's shutdown event handler when destroyed, leading to a build-up over time

CHANGELOG.md

@@ -64,6 +64,7 @@ This change has been introduced for `pointerdown`, `pointerup`, `pointermove`, `
 * Calling `Text.setStyle` would make the Text vanish if you didn't provide a `resolution` property in the style configuration object. Calling `setStyle` now only changes the properties given in the object, leaving any previously changed properties as-is. Fix #4011 (thanks @okcompewter)
 * In Matter.js if a body had its debug `render.visible` property set to `false` it wouldn't then render any other debug body beyond it. Now it will just skip bodies with hidden debug graphics (thanks @jf908)
 * If you flagged a Tween as `paused` in its config, never started it, and then called `Tween.stop` it wouldn't ever be removed from the `_pending` array. It's now moved to the Tween Manager's destroy list, ready for removal on the next frame. Fix #4023 (thanks @goldfire)
+* Game Objects would not remove themselves from the Scene's `shutdown` event handler when destroyed, leading to a build-up over time (thanks @goldfire)
 
 ### Examples, Documentation and TypeScript
 

src/gameobjects/GameObject.js

@@ -561,6 +561,8 @@ var GameObject = new Class({
         //  Tell the Scene to re-sort the children
         sys.queueDepthSort();
 
+        sys.events.off('shutdown', this.destroy, this);
+
         this.active = false;
         this.visible = false;