How to reproduce:
1. Open the attached “IN-86620” project
2. Select the “TestPrefab” in the Project window
3. Observe the values of the “Test Component” script In the Inspector (Field 1: “error”, Field 2: “10”)
4. Double-click “TestPrefab” to open Prefab Mode
5. Observe the values of the “Test Component” script (Field 1: “hello”, Field 2: “10”)
6. Exit Prefab Mode
7. Select the “TestPrefab” and change the value of “Field 2” (for example, to “1”)
8. Double-click “TestPrefab” to open Prefab Mode again
9. Observe the values of the “Test Component” script
Expected result: The value of “Field 1” is “hello”
Actual result: The value of “Field 1” is “error”
Reproducible in: 2021.3.45f1, 2022.3.50f1, 6000.0.23f1
Reproducible on: Windows 11, macOS 14.6.1 (Intel)
Not reproducible on: No other environments tested
Note: Selecting the three dots (⁝) menu and pressing “Reset” on the “Test Component” script changes the script to its initial state (before reproduction steps)