A possible issue I see with this definition of #entity is that it appears (correct me if I’m wrong...) to tie entities to a specific instantiation of a specific form id+version (?). Whereas in the general case - and certainly in mine, you can perform multiple (and completely different) ‘inspections’ (aka fill in completely different forms) about the same ‘entity’, so this vague “entity” thingy exists independent of any particular form, yet alone specific form version.
In this context, What is an ‘entity’? Or should it instead be called say “specific form instance”?
“Entity” to me conveys a physically unique object. Whereas a form instance/submission is rather more an partial snapshot in time, unique only unto itself.