[Catalyst] PathPart("") v PathPart compared with Path("") v Path

[Ashley]

A quick look through the Changes file doesn't show this has changed  
so I'm pinging the list.

   Path equates with Path("")
   PathPart does not work, though, you have to spell out PathPart("")

Just throwing that out there if anyone is under that part of the hood  
or someone Googling for why their Chained stuff won't work made the  
same error in assumptions I just did. :)

Thanks!
-Ashley