LoadAssetAtPath returns NULL when SetDirty and SaveAssets functions are in the same script

Unity: Asset - Database

2021.2.X

2020.3.X

2020.2.X

there will be no new releases of 2020.3 any more, so we can't land fixes

Closing since this version of the editor is not supported anymore and there is a port already in place tracking 2020.3 which is the supported version

To reproduce:
1. Open the project “Case”
2. Reimport the “MyData” script

Expected result: No “null!” in the Console
Actual result: We get “null!” in the Console (which means that LoadAssetAtPath does not return any value)

Reproducible with: 2020.3.36f1, 2021.2.0b11
Not reproducible with: 2021.2.0b12, 2021.3.6f1, 2022.1.9f1, 2022.2.0b1, 2023.1.0a2

Reproduced on: macOS Monterey 12.4 (Intel)

Notes:

The script is at Assets → Editor → MyImporter
There is no “null!” if SetDirty or/and SaveAssets is commented
Instead of the second step, you can create or reimport anything in the Assets folder