If you upload an avatar with an EditorOnly object, that object is still uploaded with it. The attached screenshots show that this sphere child object is EditorOnly in Unity, but still shows up in game. Even tagging the VRC_Avatar Descriptor object itself as EditorOnly will have the same result.
Repo steps:
1. Make an empty gameobject and give it the VRC_Avatar Descriptor component.
2. Give it a child object and change its tag to EditorOnly.
3. Upload the avatar.
4. Use it in game and see that the object itself is still there.
Is it only related to avatar or does the same happen with worlds too? (also test comment because we're not getting comment notifications)
@VRCPrefabs: No it does not happen in worlds. Only avatars (test of course)
That's weird, I thought that EditorOnly was explicitly recognized by Unity when building asset bundles. Does the game itself need to explicitly support this? Or is it a weird Unity quirk with how the SDK happens to build avatar asset bundles as opposed to worlds?