"Couldn't create asset file!" error message and exception when creating Template Scene asset outside "Assets" folder

Reproduction steps:
1. Open the attached project “BadMessage”
2. Open the “Assets/Scenes/SampleScene” scene
3. Save it as a new Scene Template, File -> Save As Scene Template
4. Save the Scene Template in the root directory of the project
4. Inspect the Console window

Expected result: The Console outputs a message explaining that files can’t be saved outside the “Assets” folder
Actual result: The Console throws “Couldn't create asset file!” error

Reproducible with: 2022.2.9f1, 2023.1.0b6, 2023.2.0a4
Not reproducible with: 2020.3.45f1, 2021.3.20f1

Reproducible on: macOS 13.1 (Intel)