IfcRelDefinesByObject - anyone using?

Does anyone know if there’s any applications, currently, that use IfcRelDefinesByObject?

Here’s only one example, out in the wild, that includes it.

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I have never seen it in practical IFC files.

@TLiebich any ideas?

related: IfcRelDefinesByObject vs IfcRelDefinesByType — OSArch

seems there’s a lot of confusion around how to use this class. Are there any experts here that can illuminate how best to use this?

It seems very powerful in concept, but perhaps not many implementers because of confusion on how to use it.