Reproduction link or steps

https://esbuild.github.io/try/#YgAwLjI1LjIALS1idW5kbGUgLS1mb3JtYXQ9ZXNtAGUAZW50cnkuanMAdmFyIHggPSA0MgovL3ggPSA0MQoKZXhwb3J0IGRlZmF1bHQgeAoKLy94ID0gNDA

entry_default is not necessary in this case.

What is expected?

Like Rollup, assign if needed.

https://rollupjs.org/repl/?version=4.39.0&shareable=JTdCJTIyZXhhbXBsZSUyMiUzQW51bGwlMkMlMjJtb2R1bGVzJTIyJTNBJTVCJTdCJTIyY29kZSUyMiUzQSUyMnZhciUyMHglMjAlM0QlMjA0MiU1Q24lMkYlMkYlMjB4JTIwJTNEJTIwNDElNUNuJTVDbmV4cG9ydCUyMGRlZmF1bHQlMjB4JTVDbiU1Q24lMkYlMkYlMjB4JTIwJTNEJTIwNDAlMjIlMkMlMjJpc0VudHJ5JTIyJTNBdHJ1ZSUyQyUyMm5hbWUlMjIlM0ElMjJtYWluLmpzJTIyJTdEJTVEJTJDJTIyb3B0aW9ucyUyMiUzQSU3QiU3RCU3RA==

What is actually happening?

Always assigned to a new variable like esbuild
https://esbuild.github.io/try/#YgAwLjI1LjIALS1idW5kbGUgLS1mb3JtYXQ9ZXNtAGUAZW50cnkuanMAdmFyIHggPSA0MgovL3ggPSA0MQoKZXhwb3J0IGRlZmF1bHQgeAoKLy94ID0gNDA

System Info

N/A

Any additional comments?

https://github.com/sxzz/rolldown-plugin-dts needs this behavior. No longer needed.