The "No script asset for SpriteVisibilityToolData" Warning is logged when undoing while in Play Mode with a SpriteSkin character opened in the Skinning Editor

Steps to reproduce:
 

1. Open the attached Project
2. Enter Play Mode in Scene "Level"
3. In the Hierarchy select "player_idle_0"
4. From the Inspector under the Sprite Renderer Component open the Sprite Editor
5. Switch to the Skinning Editor
6. In Scene View move any Bone of the Sprite Skin
7. Undo

Actual results: The Console logs "No script asset for SpriteVisibilityToolData. Check that the definition is in a file of the same name." (one or more times), coinciding with the play-mode scene backup restore (loading Temp/__Backupscenes/0.backup).

Expected results: The editor-only SpriteVisibilityToolData should not be serialized into the play-mode scene backup, or should resolve its script correctly on restore.

Reproducible with versions: 6000.0.0f1, 6000.0.79f1, 6000.3.20f1, 6000.5.4f1, 6000.6.0b4, 6000.7.0a2

Tested on (OS): Windows 11