Ibb Fears

EDIT: @VincentSch4rf provided a much cleaner solution [below](https://github.com/ponyorm/pony/issues/104#issuecomment-1895679583), assuming you don't mind the minor limitation I describe in my [next comment](https://github.com/ponyorm/pony/issues/104#issuecomment-1927496303). For anyone still waiting for this, you can half...

@VincentSch4rf Interestingly, I had already tried that and discarded it, but forgot why. It turns out that some code deep in Pony rejects some queries on any models which do...