Directory Node - Exclude sub directories

Hi

I am using the Directory Node - "Exclude sub directories" functionality 

I pass a filepath of "MyRoot/Archive/" and I have a set of Standard exclusion sub directories of

• Test
• Archive

I would expect the following folders to be excluded

MyRoot/Archive/Test

MyRoot/Archive/Archive

but it actually excludes the parent folder too i.e. MyRoot/Archive

How do I avoid this?

Thanks

Scott