How to reproduce:
1. Open the attached “IN-94719” project
2. In the Hierarchy window search field enter “t:BaseClass”
3. Observe the Hierarchy window
4. Open the Search window (Window → Search → New Window)
5. In the Search window “Search item” input field enter “t:BaseClass”
6. Observe the Search window

Expected result: Both the Hierarchy and Search windows should display all GameObjects with a component that inherits from BaseClass, including the GameObject that has the BaseClass component itself
Actual result: The Hierarchy window displays all GameObjects with a component that inherits from BaseClass, including BaseClass itself, while the Search window only shows the GameObject that has the BaseClass component

Reproducible with: 2022.3.58f1, 6000.0.39f1, 6000.1.0b7, 6000.2.0a4

Reproduced on: Windows 11
Not reproduced on: No other environment tested