Unset attribute in preset importer causes same attribute in imported assets to use "0", even if that is invalid

How to reproduce:
1. Open the user-attached “TestOfRegression-2022.zip”
2. Select the “test.sprite” Asset in the Project window
3. Select the Default Section of the Importer Settings

Expected result: No errors are thrown
Actual result: Some settings are lost/unassigned and an error is thrown “The selected format value 0 is not compatible…” in the Details tab of the Inspector window

Reproducible with: 2020.3.47f1, 2021.3.23f1, 2022.2.16f1, 2023.1.0b13, 2023.2.0a11

Reproduced on: macOS Ventura 13.1 (Intel)

Notes:

• After selecting the “test.sprite” Asset, the Inspector window might be empty, just de-select and re-select it again
• Full Error message: “The selected format value 0 is not compatible on this platform for the selected texture type, please change it to a valid one from the dropdown.”