Why is LocalStorage element listed at two levels of Azure service definition schema?

According to Azure service definition schema LocalStorage element can be present either in <WebRole><LocalResources> (this location is used in samples found everywhere) or right in <开发者_StackOverflow社区;WebRole> itself (which is not used in samples).

Why is it listed on two different levels of the XML schema? What happens if I define a local storage in each level?

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Probably just backward compatibility. (The location presumably changed and we kept the old syntax as an option so existing service definition files could still work.)