"InvalidOperationException" errors are thrown when the "Use as Template" property is toggled on a Visual Effect Graph

Steps to reproduce:

1. Create a new Unity project using the Universal 3D template
2. Install the Visual Effect Graph package (com.unity.visualeffectgraph)
3. Create a new Visual Effect Graph (Assets > Create > Visual Effects > Visual Effect Graph > Empty VFX)
4. Select the created Visual Effect Graph in the Project window
5. Scroll all the way down in the Inspector
6. Toggle the "Use as Template" property
7. Observe the Console window

Actual results: "InvalidOperationException: Collection was modified; enumeration operation may not execute." errors are thrown

Expected results: No errors are thrown

Reproducible with versions: 6000.6.0b1, 6000.6.0b8, 6000.7.0a4

Not reproducible with versions: 6000.3.22f1, 6000.5.8f1, 6000.6.0a7

Can’t test with versions: 6000.0.0f1, 6000.0.81f1 (due to no Template feature)

Tested on (OS): MacOS Silicon Tahoe 26.5.1