Minimal svelte-kit repo created to reproduce issue sveltejs/kit#6373
Install with npm ci, start server with npm run dev
Expected: When calling invalidate(), the load() function will run for both +page.server.js and +layout.server.js endpoints.
Actual: When calling invalidate(), the load() function does not run for +layout.server.js endpoints.
Refresh the page to see expected behaviour. Click the "invalidate" button to see issue.
Install previous svelte-kit version with npm i @sveltejs/kit@1.0.0-next.443 to see previous behaviour working as expected for both the button and page refresh.