Reproduction steps:
1. Open the "IN-45621.zip" project
2. Open "Assets/Scene"
3. In the Hierarchy window, click on the "Input" GameObject
4. Open the "My Button" dropdown menu from the "Input (Script)" Component in the Hierarchy window
5. Click on the "Circle" option and observe the selected value

Expected result: "Circle" value is selected
Actual result: Different value than "Circle" is selected

Reproducible with: 1.5.1 (2021.3.26f1, 2022.3.0f1, 2023.1.0b19, 2023.2.0a17), 1.6.1 (2021.3.28f1, 2022.3.4f1, 2023.1.2f1, 2023.2.0a21)

Reproducible on: Windows 10

Note: Reproducible with other values, chooses different values in different versions