[Developers] cyclical included types

[augusto callejas]

hi-

i've mentioned this before on the mailing list, but i found a cyclical  
included type relationship:

{
   "/freebase/type_hints/included_types" : [
     "/base/irtestbase/topic",
     "/common/topic",
     "/base/irtestbase/c",
     "/base/irtestbase/b",
     "/base/irtestbase/a"
   ],
   "id" : "/base/irtestbase/a",
   "type" : "/type/type"
}

i consider included types as a "type hierarchy", so including a type  
as its own included type causes a cycle.
should i not think of it as a hierarchy?  how do you guys at metaweb  
feel about it?

thanks,
augusto.