255 is returned when setting an enum variable to 1 and casting it to a negative integer

How to reproduce:
1. Open the attached “BurstBug.zip“ project
2. Open the “Assets/Scenes/SampleScene.unity“ Scene
3. Enter Play Mode

Expected result: “Result 1: -1; Result 2: -1; Result 3: -1“ is logged twice
Actual result: “Result 1: 255; Result 2: 255; Result 3: -1“ and “Result 1: -1; Result 2: -1; Result 3: -1“ is logged

Reproducible with: 1.4.0, 1.5.1 (2021.3.35f1), 2.4.0-pre.2 (2022.3.20f1, 2023.2.12f1, 2023.3.0b9)

Reproducible on: macOS 14.2.1 Sonoma (Intel)
Not reproducible on: No other environment tested