When there's a module graph like:

graph TD
  main["main (loaded)"] -. dynamic .-> parent1["parent1 (loaded)"]
  main -. dynamic .-> parent2
  parent1 --> child["child (loaded)"]
  parent2 --> child
  parent2 --> parent2-child

calling invalidate at child.js causes a broken behavior.
When invalidate is called, both parent1 and parent2 are re-executed, but because parent2 was never executed, the value of parent2-child is not stored in the runtime and causes loadExports to return {}.

Ideally, we should only re-execute parent1. But we can also fix this by correctly executing parent2.