Objects with HideFlags.DontSave do not get removed in Play Mode when they are in a closed SubScene

Package: Entity Component System (ECS)

Won't Fix

1.0.X

The GameObject marked with HideFlags.DontSave doesn't get saved into the subscene scene file. When the subscene is closed an entity scene artifact created by the asset importer is loaded. The problem is that internally to generate the entity scene artifact the asset importer opens the subcene and the user's OnEnable runs, creating the GameObject. Then the GameObject gets baked. We can't change this behaviour internally, but AssetDatabase.IsAssetImportWorkerProcess() can be used to detect the subscene is being opened in the asset importer and skip the spawning.

How to reproduce:
1. Open the attached project “hideFlagTest” and load Scene “newParent”
2. Enter Play Mode
3. Observe the Game View

Expected result: The Game View is empty
Actual result: A cube can be seen in the Game View

Reproducible with: Entities 1.0.0-pre.65 (2022.2.18f1, 2023.1.0b16, 2023.2.0a14)
Could not test with: Entities 0.17.0-preview.42 (Errors prevent testing)

Notes:

Opening the SubScene removes the cube correctly

Objects with HideFlags.DontSave do not get removed in Play Mode when they are in a closed SubScene

Package: Entity Component System (ECS)

Won't Fix

Prioritise and Follow this issue

Have a workaround or additional info about this issue?

Objects with HideFlags.DontSave do not get removed in Play Mode when they are in a closed SubScene

Package: Entity Component System (ECS)

Statuses

Won't Fix

Resolution Notes

Description

Prioritise and Follow this issue

Have a workaround or additional info about this issue?