Nested GameObjects of a prefab are shown in the Hierarchy window when using “Find References In Scene“ if using “Advanced“ Search Engine

How to reproduce:
1. Open the user’s attached “AdvancedSearchInconsistency.zip” project
2. Go to Preferences > Search and set Scene Search Engine to “Advanced”
3. In the Project window, select ‘CubeAndSpherePrefab“ right click and select “Find References In Scene”
4. Observe the result in the Hierarchy window

Expected result: Only “CubeAndSpherePrefab” is found
Actual result: “CubeAndSpherePrefab” and its nested GameObjects are found

Reproducible with: 2021.3.29f1, 2022.3.7f1, 2023.1.9f1, 2023.2.0b5

Reproduced on: macOS 13.4.1 (Intel)
Not reproducible on: No other environment tested

Note: not reproducible with the “Classic“ Search Engine