NullReferenceException is thrown when baking Adaptive Probe Volume for a Terrain with Non-GI Contributing Tree Prototypes and multiple APV objects with different LayerMasks are present on the scene

How to reproduce:
1. Open the attached “IN-95315“ project
2. Open the “SampleScene“
3. In the Hierarchy, select the “Adaptive Probe Volume 1” GameObject
4. In the Inspector, press the “Bake Probe Volumes” button
5. Observe the Console tab

Expected results: No errors are thrown in the Console, and the baking process completes successfully
Actual results: The baking process fails, and a NullReferenceException is displayed in the Console

Reproducible on: 2023.3.0b1, 6000.0.44f1, 6000.1.0b12, 6000.2.0a7
Could not test with: 2021.3.50f1, 2022.3.60f1 (No APV package)

Note:
The first line of the error reads:
”NullReferenceException: Object reference not set to an instance of an object
UnityEngine.Rendering.GIContributors.FilterLayerMaskOnly (UnityEngine.LayerMask layerMask) (at ./Library/PackageCache/com.unity.render-pipelines.core@405083404c88/Runtime/Lighting/ProbeVolume/ProbeVolumeGIContributor.cs:393)”