Reproduction steps:
1. Open the attached ‘IN-95608_icon’ project
2. In the Project window, observe if ‘Assets/CustomScript.cs’ has the same icon as the ‘Assets/Gizmos/CustomScript icon.png’ image
Expected results: ‘Assets/CustomScript.cs’ script file has the same icon as the ‘Assets/Gizmos/CustomScript icon.png’ image
Actual results: ‘Assets/CustomScript.cs’ has the default C# icon
Reproduced with: 2022.2.0a3, 2022.3.59f1, 6000.0.40f1, 6000.1.0b8, 6000.2.0a5
Not reproduced with: 2021.3.49f1, 2022.2.0a2
Reproduced on: Windows 11 Pro, Ubuntu 22.04
Not reproduced on: no other environment tested