Form doesn't always get cleared after submitting

What is actually going on here is that LiveView’s declarative abstraction is fundamentally leaking its imperative implementation. This is the sort of bug that is not supposed to happen with a declarative programming model.

In e.g. React this is fixed with controlled inputs which always have their state forcibly reset in lock-step with the render (this is declarative programming). Unfortunately this is one of very few things that I think genuinely cannot be fixed in LiveView because it is a consequence of server latency. In almost every case server latency is not a problem, but here it actually is.

This also means that @bartblast should take note, as if he implements controlled inputs correctly this is a case where Hologram will just be strictly and unavoidably better.