Context.RewritePath, 2nd overload usage

Sorry guy for the (probably) stupid question, but reading and testing
the second overload of the Context.RewritePath, that one with the
rebaseClientPath param.

Msdn says: true to reset the virtual path; false to keep the virtual
path unchanged.

I'd tried to use both combination and I'm not able to see any changes
in the address bar, in Context.Request.RawUrl nor
Context.Request.Path.

So, is there anybody so kind to simply explain me where the changes
take place?

Thanks
Andrea