Reproduction link or steps

https://stackblitz.com/edit/rolldown-rolldown-starter-stackblitz-em8npvdj?file=src%2Fentry.js,src%2Fcube.js,rolldown.config.mjs,package.json

What is expected?

same as rollup, both isEntry of two module should be true

What is actually happening?

isEntry of cube.js is false

System Info

n/a

Any additional comments?

No response