PUT to create new resource in container?

Am I correct in my reading that if there is a container /foo and I use PUT
rather than POST to create a resource /foo/bar, then it is undefined in the
specification whether that new resource is ldp:contained by the container?

Justification:

5.2.4 does not mention using PUT to create new resources, just specifies
behavior for updating resources.
5.2.3 only talks about POST in terms of adding new ldp:contains triples
4.2.4.6 specifically allows creation of resources via PUT

Bug, or intentional loophole?

Rob

-- 
Rob Sanderson
Information Standards Advocate
Digital Library Systems and Services
Stanford, CA 94305