"NullReferenceException" errors are thrown when UnityObjectRef does not prevent asset from being garbage collected

Reproduction steps:
1. Open the attached “MissingAsset.zip” project
2. Open the “SampleScene” scene
3. Ensure that the “NewSubScene” in the Hierarchy is opened (the checkbox next to it is checked)
4. From the top menu click on Test > GC assets
5. Observe the Console

Expected result: No errors are thrown
Actual result: “NullReferenceException: Object reference not set to an instance of an object” errors are constantly thrown

Reproducible with: 1.2.1, 1.2.3 (2022.3.33f1, 6000.0.6f1)
Could not test with: 0.51.1-preview.21 (2021.3.39f1) (Could not resolve the Console errors)

Reproducible on: Windows 11
Not reproducible on: no other environment tested

Note: In the 2022.3.33f1 version the errors appear when hovering over the Scene or Game view