Release Type: Latest built in debug

Describe the bug
Let's say you have a

public class MyComp : StartupScript
{
        public List<Test2> MyField = new List<Test2>();
        [DataContract] public struct Test2{ public bool b; }
}

Adding a new item and setting its b field to true in the property grid crashes the gamestudio.

Why ? An AssetMemberNode instance runs its Update function, note the NotifyContentChanging and NotifyContentChanged below:

NotifyContentChanging calls OnPropertyChanged on an AssetNodeViewModel instance with name b and value false further down the stack:

After this, NotifyContentChanged from the first snippet runs, creating a new AssetNodeViewModel with name b and value true, then immediately calls