Repro repo to reproduce a bug in Solid Start that blocks interactivity when using an action.
Run:
pnpm install
pnpm dev
go to / and notice that "Never shown" is printed in the console, signaling that onMount is run correctly and the page is interactive.
Then uncomment the line tagged with @todo and notice how there's now a warning in the console, no errors in the console or server and the page is not interactive.