Steps to reproduce:
- Create a new URP 3D Project
- In a Scene's Hierarchy add a Rendering > URP Decal Projector and select it
- In the Inspector click the "New" Dropdown that's to the right of the "Material" field and choose any of the options to create and set a new Material
- Use your undo shortcut
Actual results: Setting the Material is not recorded into undo history, setting the field cannot be undone
Expected results: Undoing resets the Material Field to previous Material
Reproducible with versions: 6000.0.76f1, 6000.3.16f1, 6000.4.10f1, 6000.5.0b9, 6000.6.0a6
Tested on (OS): Windows 11