https://learn.microsoft.com/en-us/dotnet/api/microsoft.build.evaluation.project.throwinsteadofsplittingitemelement?view=msbuild-17-netcore
Project.ThrowInsteadOfSplittingItemElement Property (Microsoft.Build.Evaluation) | Microsoft Learn
Certain item operations split the item element in multiple elements if the include contains globs, references to items or properties, or multiple item values....
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