"Destroying object 'Default Scene Layer' is not allowed at this time" error is thrown in Console when undoing Layer Type change on Projection Layer (Stereo)

Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Open Package Manager window
3. Find and install XR Composition Layers package
4. In Hierarchy window create Projection Layer (Stereo) (XR > Composition Layers > Projection Layer (Stereo)) and select it
5. In Inspector window > Composition Layer change Layer Type to Cube Projection
6. Undo changes ~2-4 times using keyboard shortcut
7. Observe the Console window

Actual results: “Destroying object "Default Scene Layer" is not allowed at this time.” errors is thrown in the Console window

Expected results: No errors thrown in the Console window

Reproducible with versions: 2.5.0 (6000.3.20f1, 6000.5.4f1, 6000.6.0b5, 6000.7.0a3)

Can’t test with versions: 6000.0.78f1 (XR Composition Layers package package is not available)

Tested on (OS): macOS Tahoe 26.5.2 (M1)

Destroying object "Default Scene Layer" is not allowed at this time.
UnityEngine.Object:DestroyImmediate (UnityEngine.Object)
Unity.XR.CoreUtils.UnityObjectUtils:Destroy (UnityEngine.Object,bool) (at ./Library/PackageCache/com.unity.xr.core-utils@53f54ea46304/Runtime/UnityObjectUtils.cs:38)
Unity.XR.CompositionLayers.Layers.DefaultLayerData:Validate (Unity.XR.CompositionLayers.CompositionLayer) (at ./Library/PackageCache/com.unity.xr.compositionlayers@2843cb312e13/Runtime/Layers/DefaultLayerData.cs:63)
Unity.XR.CompositionLayers.CompositionLayer:OnEnable () (at ./Library/PackageCache/com.unity.xr.compositionlayers@2843cb312e13/Runtime/CompositionLayer.cs:183)
UnityEditor.EditorApplication:Internal_CallGlobalEventHandler ()