#Entity system

One of the issues with the comments is grammar. They're not grammatically correct English.

I think it is relevant to document which langcode behavior we expect to use as that is the biggest gotcha of the whole API (and also exactly what is under test).

That said, the fact that this comment is repeated N times also hints at possible refactorings. (Out of scope, but might make the test easier to follow and reduce the need for boilerplate docs since helper methods or data providers would be more self-documenting.)

Aside: This issue is what happens when we descope the docs gate from something!!

I don't think PMNMI is the correct status? We just need proposals for better comments. (Another node-access-not-actually-node issue.) It's tagged "Needs IS update", which corresponds to "Active" when there's no MR (or NW when there is one). Thanks!