I am getting an exception being thrown in pathom connect when attempting a mutation join with a recursive attribute in the followup query. I put the notes in this gist: https://gist.github.com/dvingo/543cb15d907587f83e41bc07eca217c8 the resolver and query work when not used as a mutation join. I figured I'd post it here first and will open an issue if this is a bug. It's not clear to me that there's anything problematic in the calling code and in the resolver.