No documentation to prohibit multiple shape representations of the same context with different representation types

[Moult]

Originally brought up here

It is legal for an IFC product to have a product definition shape that has two shape representations that both belong to the exact same geometric context, but have different representation types (e.g. one as a point cloud, one as a brep).

Even though it is legal, is it intended to allow mixing of representation types per context?

If not, propose to write documentation and / or where rule to prohibit.