“The type UnityEditor.CoreModule UxmlSerializedData is being serialized by [SerializeReference]...” warning is thrown when entering Play mode with Render Objects Shader Override selected

Reproduction steps:
1. Create a new Universal 3D project
2. Select the "PC_Renderer" Asset in the Project window (Assets > Settings)
3. Click “Add Renderer Feature” button and add “Render Objects” option in the Inspector
4. Change Render Objects Override Mode to Shader
5. Select any Shader in the Shader field
6. Enter Play mode and observe the Console

Actual result: “The type UnityEditor.CoreModule UxmlSerializedData is being serialized by [SerializeReference], but is missing the [Serializable] attribute. To suppress this warning add [Serializable] or use [MakeSerializable].” warning is thrown
Expected result: No errors or warnings are thrown

Reproducible with: 6000.3.0a5 (36d7e9fd6645), 6000.3.17f1, 6000.4.10f1, 6000.5.0b11
Not reproducible with: 6000.0.76f1, 6000.3.0a4, 6000.6.0a6

Reproduced on: Windows 11
Not reproduced on: macOS Tahoe 26.4 (M4), Ubuntu 24.04