Webhooks v2 on folders ... applied to subfolders?

Hi,

I'm trying to implement an application where, upon a folder created, my application then adds content, including other folders, to be added.  For example:

1. In my directory "Test", I apply a webhook to trigger on FOLDER.CREATED

2.Once a folder is created in "Test", e.g. "Test/Foo", the app goes and creates a folder structure within "Test/Foo", including say "Test/Foo/Upload"

What happens is, when my app creates the Upload directory, another webhook event is triggered, as it is a subfolder of Test.  Is this by design?  It seems to potentially contradict the "1 webhook per object" model you lay out in the documentation, if so.

Thanks

Andrew