Our current context URL for projected entities includes the selected properties:

#

The abnf for property-list is:
propertyList = OPEN propertyListItem *( COMMA propertyListItem ) CLOSE
propertyListItem = STAR ; all structural properties
/ propertyListProperty
propertyListProperty = primitiveProperty
/ primitiveColProperty
/ navigationProperty [ '+' ] [ propertyList ]
/ selectPath [ "/" propertyListProperty ]

However, we need to be able to support properties being prefixed with type for the following types of queries:

~People?$select=ns.SalesPerson/Department,ns.Cashier/Register

Which should yield:

http://host/service/$metadata#People(ns.SalesPerson/Department,ns.Cashier/Register)