Objects in object reference fields cannot be changed second and later times in the same Object Picker instance

Steps to reproduce:

1. Create and open a new URP 3D project
2. Make a prefab of the Global Volume
3. Duplicate the 'DefaultVolumeProfile' Volume Profile asset
4. Select the Global Volume Prefab in Project
5. Open the Object picker for the Volume Profile
6. Select the duplicated asset and back to the first
7. Observe the Object reference field

Actual results: Object reference doesn't update after the first selection

Expected results: Object reference changes upon any selection in Object Picker (can be observe with any GameObject in Hierarchy)

Reproducible with versions: 6000.0.84f1, 6000.3.25f1, 6000.6.0a1, 6000.6.3f1, 6000.7.0b2, 7000.0.0a1

Not reproducible with versions: 6000.5.0b2

Can’t test with versions: 

Tested on (OS): Windows 11 Pro (25H2)

Notes:

• Only reproduces on Prefabs
• Might be inconsistent to reproduce. If there is no reproduction, try creating another project or trying with any other Object field