Prefab preview has unmodifiable overrides which were set in the parent

Unity Engine
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1

For example, I have a prefab which just has a SpriteRenderer, with material Sprites-Default. I add the prefab to the scene and I override the Material to Sprites-Mask.

1000×540 46.6 KB

If now I enter this prefab preview, this override is taken over and made immutable.

995×510 40.5 KB

What is this? Why dont I see the original Material set in the prefab. Its the same with any kind of override.

2

Ok, I have learned about Open prefab in context (click arrow) vs Open prefab in isolation (Alt + click arrow). Issue resolved.