Drop-down menus for Asset Bundles in Inspector have an empty row of options

1. Open any project
2. Select an Asset in the Project Browser
3. In the Inspector scroll down to the bottom to the Asset Bundles section
4. Open any of the two drop-down menus

Actual result: Both dropdown menus have an empty row of options
Expected result: No empty row of options present

Note: Selecting the dropdown empty option from the Variants dropdown menu lets the user create an Asset Bundle Variant with the name "" (empty)

Reproducible with: 2023.2.0a21, 2023.2.0b11, 2023.3.0a6
Not reproducible with: 2021.3.29f1, 2022.3.10f1, 2023.1.14f1, 2023.2.0a20